Editing Seoul Subway Line 1

{{short description|Subway line in Seoul, South Korea}}
{{Infobox rail line
| box_width                       = 22em
| color                           = {{rcr|Seoul Metropolitan Subway|1}}
| name                            = Line 1
| native_name                     = {{Lang|ko|1호선(一號線)}}<br />''Il Hoseon''
| logo                            = [[File:South Korea subway logo.svg|x40px]] [[File:Seoul Metro Line 1.svg|x40px]]
| logo_alt                        = 
| image                           = [[File:Korail Class 312000.png|265px]] [[File:Seoul Metro Line 1 train leaving Geumjeong.jpg|265px]]
| image_width                     = 
| image_alt                       = 
| caption                         = [[Korail Class 311000]] series EMU in February 2021 (top)<br />[[Seoul Metro 1000 series (VVVF)|Seoul Metro 1000 series]] EMU in December 2017 (bottom)
| type                            = [[Rapid transit]] / [[Commuter Rail]]
| system                          = [[Seoul Metropolitan Subway]]
| status                          = Operational
| locale                          = [[Seoul Metropolitan Area]]
| start                           = [[Yeoncheon station|Yeoncheon]]
| end                             = [[Incheon station|Incheon]] / [[Sinchang station|Sinchang]] / [[Gwangmyeong station|Gwangmyeong]] / [[Seodongtan station|Seodongtan]]
| stations                        = 102<br />Seoul Metro: 10<br />Korail: 92
| routes                          = '''Local:'''<br>Yeoncheon / Soyosan / Dongducheon ↔ Incheon,<br>Kwangwoon U ↔ Seodongtan / Cheonan / Sinchang,<br>Yeongdeungpo ↔ Gwangmyeong<br>'''Express:'''<br>Cheongnyangni ↔ Cheonan / Sinchang,<br>Dongducheon ↔ Incheon<br><small>(AM Rush & off-peak weekdays)</small>,<br>Yongsan ↔ Dongincheon,<br>Seoul Station ↔ Cheonan/Sinchang<br><small>(weekday RH, peak direction only)</small>
| open                            = August 15, 1974
| close                           = 
| owner                           = [[Seoul Special City]],<br>[[Government of South Korea|South Korean Government]]
| operator                        = [[Seoul Metro]], [[Korail]]
| character                       = 
| depot                           = 
| stock                           = 
| linelength_km                   = 
| linelength                      = {{convert|218.3|km|abbr=on}}<br />Seoul Metro: {{convert|7.8|km|abbr=on}}<ref name="Seoul-Subway-stats" /> <br />Korail: {{convert|210.5|km|abbr=on}}
| tracklength_km                  = 
| tracklength                     = 
| gauge                           = {{RailGauge|sg|allk=on}}
| minradius                       = 
| routenumber                     = 
| linenumber                      = 1
| electrification                 = 1,500 V DC<br><small>(Seoul Metro section)</small><br>25 kV AC at 60 Hz <br><small>(Korail section)</small>
| speed_km/h                      = 
| speed                           = {{convert|110|km/h|mph|abbr=on}}
| elevation_m                     = 
| elevation                       = 
| website                         = 
| map                             = {{routemap
| title = {{RouteBox|Soyosan – Sinchang|Seoul Subway Line 1|#{{rcr|Seoul Metropolitan Subway|1}}}}
| title_bg =
| title_color =
| collapse =
| inline = yes
| map =
CONTg~~[[Gyeongwon Line]]
WECHSEL~~↑[[Yeoncheon station|Yeoncheon]]/[[Dongducheon station|Dongducheon]]↓
uBHF~~0.0~~[[Soyosan station|Soyosan]]
uBHF~~2.5~~[[Dongducheon station|Dongducheon]]
uHST~~4.1~~[[Bosan station|Bosan]]
uBHF~~5.5~~[[Dongducheon Jungang station|Dongducheon Jungang]]
uHST~~6.5~~[[Jihaeng station|Jihaeng]]
uSTR
uBHF~~12.1~~Deokjeong
uHST~~15.0~~Deokgye
uBST~~ ~~ ~~Majeon Signal Box
uBHF~~20.3~~[[Yangju station|Yangju]]
uHST~~21.9~~Nogyang
CONTgq\mvSTR+r-SHI1+r\~~←[[Gyooe Line]]
\mvSTR!~ulv-BHF\~~23.2~~[[Ganeung station|Ganeung]]
\SHI1+r!~uSHI1+l\
uBHF~~24.4~~[[Uijeongbu station|Uijeongbu]]
uHST~~26.0~~[[Hoeryong station|Hoeryong]] {{rint|seoul|uij}}
uHST~~27.4~~[[Mangwolsa station|Mangwolsa]]
\uSTR+GRZq\CONTg olive~~↑[[Uijeongbu]]/[[Seoul]]↓
\uBHF!~HUBaq\BHF olive!~HUBeq~~29.7~~[[Dobongsan station|Dobongsan]] {{rint|seoul|7}}
\uBHF\CONTf olive~~30.9~~[[Dobong station|Dobong]]
uBHF~~32.2~~[[Banghak station|Banghak]]
hCONTgq blue\uBHF!~HSTq blue!~lhBHFq\hCONTfq blue~~33.9~~[[Chang-dong station|Chang-dong]] {{rint|seoul|4}}
uHST~~34.9~~[[Nokcheon station|Nokcheon]]
uHST~~36.3~~[[Wolgye station|Wolgye]]
\SPLag+xl!~uSHI1r\exCONTfq~~formal [[Gyeongchun Line]]
\umvBHF\~~37.4~~[[Kwangwoon University station|Kwangwoon Univ.]]
\umvSTR!~ulvBHF-\~~38.5~~[[Seokgye station|Seokgye]] {{rint|seoul|6}}
\v-STRl!~umvSTR\STR+r
\umvSTR\KDSTe~~ ~~ ~~Imun Rail Yard
\umvSTR!~ulvBHF-\~~39.9~~[[Sinimun station|Sinimun]]
\umvSHI1l-STRl\CONTfq~~ ~~ ~~[[Mangu Line]]({{rcb|Seoul Metropolitan Subway|Gyeongchun|inline=yes}})→
\uBHF\~~40.7~~[[Hankuk University of Foreign Studies station|Hankuk Univ. of Foreign Studies]]
\uSTR\CONTg cyan~~{{rcb|Seoul Metropolitan Subway|Gyeongjung|inline=yes}} {{rcb|Seoul Metropolitan Subway|Gyeongchun|inline=yes}}→
\uBHF!~HUBaq\BHF cyan!~HUBeq~~41.5~~[[Hoegi station|Hoegi]]
\uSTR+GRZq\STR cyan~~↑[[Alternating current|AC]] section/[[Direct current|DC]] section↓ (neutral section)
\uSTR!~POINTERg@fq\STR cyan
uKRW+l\STR cyan!~uKRWr\STR cyan!~POINTERg@fq~~{{rcb|Seoul Metropolitan Subway|Gyeongjung|inline=yes}} {{rcb|Seoul Metropolitan Subway|Gyeongchun|inline=yes}}
utSTRa\KRWgl+l!~STR cyan\KRWgr+r!~STR cyan
utBHF!~HUBaq\BHF cyan!~HUBq\BHF cyan!~HUBeq~~42.9~~[[Cheongnyangni station|Cheongnyangni]]
utSTR\STR cyan\KDSTe cyan
utSTR2\STRl cyan!~utSTRc3\CONTfq cyan~~{{rcb|Seoul Metropolitan Subway|Gyeongjung|inline=yes}}→
utSTRc1\utSTR+4\
utHST~~43.9~~[[Jegi-dong station|Jegi-dong]]
\utSTR\utSTR+l~~ ~~ ~~{{rint|seoul|2}} connection line→
\utBHF!~HUBaq\uetBHF!~HUBeq~~44.8~~[[Sinseol-dong station|Sinseol-dong]] {{rint|seoul|2}} {{rint|seoul|ui}}
\utKRWg+l\utKRWr
utBHF~~45.5~~[[Dongmyo station|Dongmyo]] {{rint|seoul|6}}~~ ~~Since 2005
utBHF~~46.1~~[[Dongdaemun station|Dongdaemun]] {{rint|seoul|4}}
utHST~~46.9~~[[Jongno 5(o)-ga station|Jongno 5(o)-ga]]
utBHF~~47.8~~[[Jongno 3(sam)-ga station|Jongno 3(sam)-ga]] {{rint|seoul|3}} {{rint|seoul|5}}
utHST~~48.6~~[[Jonggak station|Jonggak]]
utBHF~~49.6~~[[City Hall station (Seoul)|City Hall]] {{rint|seoul|2}}
\CONT4+f!~utBS2c1\utBS2+r\tSTR+l blue~~(↖)[[Gyeongui Line]], {{rint|seoul|4}}(→)
tKBHFa sky!~HUBaq\BHFSPLa!~HUBq\utBHF!~HUBq\tBHF blue!~HUBeq~~50.7~~[[Seoul Station]] {{nowrap|[[File:Korail logo.svg|100x12px|link=Korail]]}} {{nowrap|[[File:KTX logo.svg|100x12px|link=KTX]]}}
tSTRr sky\uv-STR2!~vSTR\utSTRe!~uSTRc3\tSTRl blue~~(←){{rint|seoul|arx}}, {{rint|seoul|4}}(→)
vSTR!~uSTRc1\uSTR+4!~uSTR+GRZq~~↑[[Direct current|DC]] section/[[Alternating current|AC]] section↓ (neutral section)
STR+l\vSTRr-!~vSTR\uHST\~~52.4~~[[Namyeong station|Namyeong]]
STRl\vKRZu\umKRZu\STR+r
CONTgq cyan\vKRZu!~STRq cyan\uKRZu!~STRq cyan\STR!~STR+r cyan~~←{{rcb|Seoul Metropolitan Subway|Gyeongjung|inline=yes}}
cd\c!~HUBaq+c\vBHF\uBHF!~HUBq\BHF cyan!~HUBeq~~53.9~~[[Yongsan station|Yongsan]] {{nowrap|[[File:Korail logo.svg|100x12px|link=Korail]]}} {{nowrap|[[File:KTX logo.svg|100x12px|link=KTX]]}}
\vSTR\umABZg+l\STR+r!~STR cyan~~ ~~ ~~Yongsan Triangular line
exKDSTaq\exvSTRr-!~vSTR\uSTR\CONTf cyan~~ ~~ ~~Yongsan Rail Yard (closed)
WASSERq\vWBRÜCKE1\uhKRZWae\WASSERq~~[[Han River (Korea)|Han River]]
vSTR\uBHF~~56.5~~[[Noryangjin station|Noryangjin]] {{rint|seoul|9}}
mvSTRl-SHI1ro\umvSHI1+lo-STR+r
uvSHI1+l-STR+l\umvSTRr-SHI1r
uvBHF\STR~~58.0~~[[Daebang station|Daebang]] {{rint|seoul|sil}}
uvBHF\STR~~58.8~~[[Singil station|Singil]] {{rint|seoul|5}}
uvBHF-L\BHF-R~~59.8~~[[Yeongdeungpo station|Yeongdeungpo]] {{nowrap|[[File:Korail logo.svg|100x12px|link=Korail]]}} {{nowrap|[[File:KTX logo.svg|100x12px|link=KTX]]}}
uvBHF\STR~~61.3~~[[Sindorim station|Sindorim]] {{rint|seoul|2}}
uv-STR+l\uvABZgr-STR\STR\
uv-BHF-L\uvBHF-R\STR\~~62.4~~[[Guro station|Guro]]
uv-STRl\uvKRZu\umvSTR+r-SHI1+r!~uSTRq\uvSTR+r-
uCONTgq\uvSTRr-SHI1r!~uSTRq\uvSTR+r-!~umvSTR\uvSTR-~~←[[Gyeongin Line|Gyeongin]] (to [[Incheon station|Incheon]])
\uKBSTe\umvSTR\uvSTR-~~Guro Rail Yard
\uv-STR+l\uvSTRr-!~v-SHI2r\uvSTR-
\uv-STR\mvSTR-STR+l\uvSTRr-
\uv-STR!~v-NULg\mvSTR!~v-NULf\~~ ~~ ~~Northbound/Southbound
\uv-HST\mvSTR!~uv-HST\~~64.8~~[[Gasan Digital Complex station|Gasan Digital Complex]] {{rint|seoul|7}}
\uv-HST\mvSTR!~uv-HST\~~66.8~~[[Doksan station|Doksan]]
KDSTCCa\uv-BHF-L\mvSTR!~ulvBHF-R\~~68.0~~[[Geumcheon-gu Office station|Geumcheon-gu Office]]
tABZg+l\tSTRe@fq!~uv-STR\mvSTRr-STR!~vSTR-\~~ ~~ ~~←[[Gyeongbu high-speed railway]] (Siheung connecting line)
tBHFea\uv-STR\mvSTR\~~(72.7)~~[[Gwangmyeong station|Gwangmyeong]] {{nowrap|[[File:Korail logo.svg|100x12px|link=Korail]]}} {{nowrap|[[File:KTX logo.svg|100x12px|link=KTX]]}}
tCONTf\uv-HST\mvSTR!~uv-HST\~~70.3~~[[Seoksu station|Seoksu]]
\uv-HST\mvSTR!~uv-HST\~~72.2~~[[Gwanak station|Gwanak]]
\uv-BHF-L\vBHF-R!~uv-BHF\~~74.6~~[[Anyang station|Anyang]] {{nowrap|[[File:Korail logo.svg|100x12px|link=Korail]]}}
\uv-HST\mvSTR!~uv-HST\~~76.8~~[[Myeonghak station|Myeonghak]]
\utvSTR+l-!~uv-STR\utSTRq!~mvSTR\utSTRq!~utvSTR+l-~~{{rint|seoul|4}}→
\uv-STR!~utvSTRe-\mvSTR\utvSTRe-
\uvBHF\mvSTR!~uv-BHF-L\uvBHF-R-~~78.2~~[[Geumjeong station|Geumjeong]]
uCONTgq\uv-STR!~MSTRq!~uvSTRr-!~uhSTRaq\mvSTR!~MSTRq!~uhSTRe@fq\uvSTRr-~~←{{rint|seoul|4}}
\uv-BHF-L\mvSTR!~ulvBHF-R\~~80.4~~[[Gunpo station|Gunpo]]
\uv-HST\mvSTR!~uv-HST\~~81.6~~[[Dangjeong station|Dangjeong]]
\uv-BHF-L\mvSTR!~ulvBHF-R\~~84.6~~[[Uiwang station|Uiwang]]
\uv-BHF-L\mvSTR!~ulvBHF-R\~~87.5~~[[Sungkyunkwan University station|Sungkyunkwan Univ.]]
\uv-HST\mvSTR!~uv-HST\~~90.1~~[[Hwaseo station|Hwaseo]]
\uv-BHF-L\vBHF-R!~uv-HST\~~92.2~~[[Suwon station|Suwon]] {{nowrap|[[File:Korail logo.svg|100x12px|link=Korail]]}} {{nowrap|[[File:KTX logo.svg|100x12px|link=KTX]]}} {{rcb|Seoul Metropolitan Subway|Suin–Bundang|inline=yes}}
\uv-HST\mvSTR!~uv-HST\~~95.1~~[[Seryu station|Seryu]]
\uv-SHI2gr\mvSTR!~uv-SHI2gl\uvSHI2+r-
\uvBHF\mvSTR!~uv-BHF-L\uvBHF-R-~~99.4~~[[Byeongjeom station|Byeongjeom]]
\uvSTRl-STRo\mvKRZo!~uv-STR\uSTR+r!~uSHI1+r
\uv-STR!~v-NULg\mvSTR!~v-NULf\uDST~~ ~~ ~~Byeongjeom Rail Yard
\uv-STR\mvSTR\uKBHFe~~(101.6)~~[[Seodongtan station|Seodongtan]]
\uv-HST\mvSTR!~uv-HST\~~101.8~~[[Sema station|Sema]]
\uv-HST\mvSTR!~uv-HST\~~104.5~~[[Osan University station|Osan Univ.]]
\uv-BHF-L\vBHF-R!~uv-HST\~~107.2~~[[Osan station|Osan]] {{nowrap|[[File:Korail logo.svg|100x12px|link=Korail]]}}
\uv-HST\mvSTR!~uv-HST\~~111.2~~[[Jinwi station|Jinwi]]
\uv-HST\mvSTR!~uv-HST\~~115.0~~[[Songtan station|Songtan]]
\uv-BHF-L\vBHF-R!~uv-HST\~~117.2~~[[Seojeongni station|Seojeongni]] {{nowrap|[[File:Korail logo.svg|100x12px|link=Korail]]}}
\uv-HST\mvSTR!~uv-HST\~~122.0~~[[PyeongtaekJije station|PyeongtaekJije]]
\uv-BHF-L\vBHF-R!~uv-HST\~~125.7~~[[Pyeongtaek station|Pyeongtaek]] {{nowrap|[[File:Korail logo.svg|100x12px|link=Korail]]}}
\uv-BHF-L\vBHF-R!~uv-HST\~~135.1~~[[Seonghwan station|Seonghwan]] {{nowrap|[[File:Korail logo.svg|100x12px|link=Korail]]}}
\uv-HST\mvSTR!~uv-HST\~~140.5~~[[Jiksan station|Jiksan]]
\uv-BHF-L\mvSTR!~ulvBHF-R\~~144.3~~[[Dujeong station|Dujeong]]
\uSHI1+l!~uSTR+l\mvSHI1l-STRro\
\KRW+l!~uSTR\KRWgr\
\uBHF-L\BHF-R\~~147.3~~[[Cheonan station|Cheonan]] {{nowrap|[[File:Korail logo.svg|100x12px|link=Korail]]}}
\uBS2l\STRl!~uBS2c3\CONTfq~~[[Gyeongbu Line]] (to [[Daejeon station|Daejeon]]→
\uHST\~~148.8~~[[Bongmyeong station|Bongmyeong]]
\uHST\~~150.3~~[[Ssangyong station|Ssangyong]]
CONTgq\uBHF!~HSTq!~lhBHFaeq\CONTfq~~151.8~~[[Asan station|Asan]] {{nowrap|[[File:Korail logo.svg|100x12px|link=Korail]]}} {{nowrap|[[File:KTX logo.svg|100x12px|link=KTX]]}}
\uSTR\~~←[[Gyeongbu high-speed railway]]→
\ueHST\~~[[Tangjeong station|Tangjeong]]
\uHST\~~156.7~~[[Baebang station|Baebang]]
\uHST\~~161.6~~[[Onyangoncheon station|Onyangoncheon]] {{nowrap|[[File:Korail logo.svg|100x12px|link=Korail]]}}
\STR!~uKBHFe\~~166.7~~[[Sinchang station|Sinchang]]
\CONTf\~~[[Janghang Line]] (to [[Iksan station]])
}}
| map_state                       = collapsed
}}

[[File:Korail Class 311000 2019 July 27.webm|thumb|Seoul Subway Line 1 from above, 2019]]

'''Seoul Subway Line 1''' (dubbed ''The Dark Blue Line'') of the [[Seoul Metropolitan Subway]] is a [[rapid transit]] and [[commuter rail]] line which links central [[Seoul]], [[South Korea]] to [[Yeoncheon station|Yeoncheon]] in the northeast, [[Incheon]] in the southwest, and [[Sinchang station|Sinchang]] via [[Suwon]] and [[Cheonan]] in the south. The central underground portion of Line 1, running underneath [[Sejongno]], [[Jongno]], and [[Wangsan-ro]] avenues along Seoul's traditional downtown area, is the oldest subway-operated section in the Seoul Metropolitan Subway system. Its branches and services cover a large part of the [[Seoul Metropolitan Area]]; totaling {{cvt|218.3|km|mi}} in route length.

The underground section between [[Seoul station]] and [[Cheongnyangni station]], which is referred to as '''Seoul Metro Line 1''' ({{convert|7.8|km|mi|sp=us|abbr=on|disp=sqbr}}) after its operator, is currently operated by [[Seoul Metro]], and is [[Railway electrification|electrified]] at the subway standard of 1.5 kV DC.<ref name="Seoul-Subway-stats">{{cite web |url=http://infra.seoul.go.kr/archives/1092 |script-title=ko:지하철건설현황 |publisher=Seoul City Government |language=ko |trans-title=Status of Subway Construction |access-date=22 February 2014}}</ref> The line first opened in 1974 as the '''Korean National Railroad of Seoul''' with [[Through train|through services]] to newly-electrified (at the mainline [[Korea National Railway|KNR]] standard of 25 kV AC 60 Hz) national mainline railways from Seongbuk station (now: [[Kwangwoon University station]]) to [[Incheon station|Incheon]] and [[Suwon station]]s.<ref>{{cite web|url=https://www.koreatimes.co.kr/www/news/nation/2011/02/117_81284.html|title=Seoul's first subway line opened in 1974|publisher=Korea Times|access-date=25 July 2014|date=13 February 2011}}</ref> This was the first electrified rapid transit line and service in South Korea and the second in the Korean Peninsula after the [[Pyongyang Metro]] in [[North Korea]] opened the year before.

Frequent service is provided between Soyosan, Dongducheon, Uijeongbu, Cheongnyangni, Seoul, Yongsan, and Guro, where trains split between Incheon in the west and Byeongjeom and Cheonan in the south. Express trains operate from Yongsan and Seoul stations to [[Dongincheon station|Dongincheon]] and [[Sinchang station|Sinchang]] stations. Trains run every 3-6 min in the central route between Seoul Station and Cheongnyangni, every 6-9 min between Seoul and Guro, every 8-10 min between Guro and Incheon and between Guro and Byeongjeom, every 10-15 min from Byeongjeom to Cheonan, and every 35 min between Cheonan and Sinchang and service up to the Dongducheon area and Soyosan station.

Service to Yeoncheon is approximately once per hour, limited due to the single track section approaching Soyosan station. This service is meant to be the replacement for the Gyeongwon line commuter trains, which began at Dongducheon station prior to its closure. 

Trains travel along [[Gyeongbu Line|Gyeongbu]] (Seoul-Cheonan), [[Gyeongin Line|Gyeongin]] (Guro-Incheon), [[Janghang Line|Janghang]] (Cheonan-Sinchang), and [[Gyeongwon Line|Gyeongwon]] (Hoegi-Yeoncheon) railway lines. The line runs on the [[Left hand drive|left-hand]] side of the track, as opposed to the [[Right hand drive|right-hand]] side of the track like all other Seoul Metropolitan Subway lines (another exception to this is [[Seoul Subway Line 4]] although it runs on the [[Right hand drive|right-hand]] side until [[Namtaeryeong station]], and operates on the [[Left hand drive|left-hand]] side for the parts afterwards)<ref>{{in lang|ko}} [http://news.naver.com/main/read.nhn?mode=LSD&mid=sec&sid1=110&oid=021&aid=0000149835 <오후여담>좌측통행], Munhwailbo</ref> since railways in Korea generally run on the left side.

== Rapid (Express) trains ==
Korail operates a variety of express "rapid" ([[Korean language|Korean]]: 급행 ''geup-haeng'', [[Hanja]]: 急行) trains for long distance commuter services on Line 1. These services include:
* Gyeongin line express services from Yongsan to Dongincheon, operating express between Guro and Dongincheon, including:
** Regular express services, introduced on January 29, 1999, following quadruple-tracking of the Gyeongin Line.
** Faster [[Limited express#South Korea|limited express]] ([[Korean language|Korean]]: 특급 ''teuk-geup'', [[Hanja]]: 特急) trains, introduced on July 7, 2017.
* Gyeongbu line express services from Cheongnyangni to Cheonan or Sinchang, operating express between Gasan Digital Complex and Cheonan and running local elsewhere.
* <span style="color:#0f0">Green</span> Gyeongbu line express service from Seoul Station to Cheonan or Sinchang, originating at a platform adjacent to Seoul Station, skipping all stations between [[Seoul station]] and [[Geumcheon-gu Office station]], making intermediate stops at Anyang, Gunpo, Uiwang, and Sungkyunkwan University, and then following the red Gyeongbu line express service pattern south of Suwon. Northbound services (departing from Cheonan/Sinchang and terminating at Seoul Station) stop at [[Yeongdeungpo station]], but southbound services are unable to due to the lack of a raised platform. This service was introduced on September 25, 1982.<ref>{{Cite web|url=https://newslibrary.naver.com/viewer/index.nhn?articleId=1982101400209210002&editNo=2&printCount=1&publishDate=1982-10-14&officeId=00020&pageNo=10&printNo=18778&publishType=00020M|title = 20일부터 하루3회 서울驛(역)~水原(수원) 직통電鐵(전철)운행}}</ref>
* Gyeongwon line express services from Dongducheon to Incheon, operating express between Dongducheon and Kwangwoon University and running local between Incheon and Kwangwoon University.

Former express services include:
* One late night Gyeongin line express service that originated at Soyosan, made all stops to Guro, then made express stops until Incheon.
* Yeongdeungpo-Byeongjeom Gyeongbu line express service, skipping all stations between [[Yeongdeungpo station|Yeongdeungpo]] and [[Anyang station|Anyang]] and then following the Yeongsan-Cheonan/Sinchang express service pattern south of Anyang until [[Byeongjeom station|Byeongjeom]]. This service was introduced on August 25, 2014 and was discontinued on December 9, 2016.
* Two faster Yongsan-Sinchang limited express trains (one in each direction), introduced in 2013. This train only operated on weekends and holidays. It was discontinued on July 1, 2018.

== Electrification ==
Seoul Subway Line 1 is powered by 1500 V direct current on the underground tunnel segment between [[Cheongnyangni station]] and [[Seoul station]], and by 25000 V alternating current (60 Hertz frequency) on the rest of the line. Underground DC system was implemented in order to prevent possible telecommunication malfunction by AC current on telephone lines, following the opposition from the Ministry of Postal Service (currently [[Ministry of Science and ICT]]).<ref>{{cite web |title=서울의 지하철(Subway of Seoul) |url=https://museum.seoul.go.kr/www/board/NR_boardView.do?colExt8_1=&q_bookCate=&colExt8_3=&actionMethod=&sortName=&searchVal=&colExt8_4=&actionUri=&bbsCd=1012&endDt=&searchKey=TITLE___1002&sso=ok&regPwd=N&colExt8=&pageType=&sortOrder=&startDt=&currentPage=&seq=20241128162557242&ctgCd=&showSummaryYn=N |website=Seoul Museum of History |access-date=13 January 2025 |pages=50 |language=Korean |format=E-book, PDF of the exhibition |date=2024-11-28}}</ref> Because of this different manner of offering electric current, there are [[Overhead line#Neutral section (phase break)|neutral sections]] between Cheongnyangni station and [[Hoegi station]], as well as between Seoul Station and [[Namyeong station]]. All Line 1 rolling stock are similarly required to be [[Multi-system (rail)|multi-system compatible]] with both electrification systems.<ref>{{cite journal |last1=Lee |first1=Hae-Won |display-authors=et al. |title=Case Study of Railway Power supply Modification(DC→AC) |journal=2019 Spring Conference for The Korean Society For Railway |date=19 April 2019 |pages=269-272 |url=https://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE08757114 |language=Korean |access-date=13 January 2025}}</ref>

[[File:Cheongnyangni-Hoegi DC-AC Deadsection with Seoul Metro 1009 Bound the Cheongnyangni.JPG|thumb|Cheongnyangni-Hoegi DC-AC neutral section]]

== Stations ==
{{Unreferenced section|date=August 2023}}

Until 2000, the {{convert|7.8|km|mi|abbr=on|sp=us|disp=}} underground city-center portion run by [[Seoul Metro Corporation]]—one of Seoul Metro's predecessors—was the only section properly referred to as Line 1 and labeled red on maps. On the other hand, the remaining sections of the rail line run by [[Korail]] were referred to as Korean National Railroad of Seoul and the local all-stop services labeled either blue or gray on maps, while the express services were labelled thin red. Since 2000, all adjacent through-running Korail services from the [[Gyeongbu Line|Gyeongbu]], [[Gyeongin Line|Gyeongin]] and [[Gyeongwon Line|Gyeongwon]] Lines, as well as later Korail-operated extensions and branches, are officially bundled together with the aforementioned underground portion as part of a greater Line 1, and the labeling on maps was changed and standardized to the current dark blue color (as illustrated in the map below); also to avoid confusion with [[Seoul Subway Line 4|Line 4]]'s light blue color. (A slightly different shade of red is now used to label the [[Shinbundang Line]] which opened in 2011.)
{{Panorama
| image = File:Seoul Subway Line 1 (ENG).svg
| height = 550
| width =
| alt =
}}

=== Main Lines ===
Local lines:
* Yeoncheon, Dongducheon, Uijeongbu or Yangju — Incheon
* Uijeongbu (3 times only on weekdays), Kwangwoon Univ. or Cheongnyangni — Cheonan, Sinchang, or Seodongtan
* Yeongdeungpo — Gwangmyeong (shuttle)

Express lines:
* ''<span style="color: #ff0000">'''GW'''</span>: Gyeongwon Express (Dongducheon - Incheon)''
* ''<span style="color: #ff0000">'''GI'''</span>: Gyeongin Express (Yongsan – Dongincheon)''
* ''<span style="color: #0000FF">'''GI LE'''</span>: Gyeongin [[Limited Express]] (Yongsan – Dongincheon)''
* ''<span style="color: #ff0000">'''GB A'''</span>: Gyeongbu Express (Cheongnyangni – Cheonan or Sinchang)''
* ''<span style="color: #008000">'''GB B'''</span>: Gyeongbu Express (Seoul – Cheonan or Sinchang)''
※ Only [[Korail]] trains are used for express trains.<br>
Key:
{|
|● || Stops at the station
|-
|｜ || Does not stop at the station
|-
|○ || Limited service
|}

{| class="wikitable" style="text-align:center;"
! Station<br />number
! width="225" | Station name<br />{{nobold|<small>English</small>}}
! width="130" | Station name<br />{{nobold|<small>[[Hangul]]</small>}}
! width="130" | Station name<br />{{nobold|<small>[[Hanja]]</small>}}
! width="40" | <span style="color: #ff0000">GW</span>
! width="40" | <span style="color: #ff0000">GI</span>
! width="40" | <span style="color: #0000FF">GI LE</span>
! width="40" | <span style="color: #ff0000">GB A</span>
! width="40" | <span style="color: #008000">GB B</span>
! width="160" | Transfer
! Line name
! Distance<br />{{nobold|<small>in km</small>}}
! Total<br />distance
! colspan = "2" | Location
|- style = "background:#{{rcr|Seoul Metropolitan Subway|1}}; height: 2pt"
| colspan = "15" |
|-
|100-3
|[[Yeoncheon station|Yeoncheon]]
| {{lang|ko|[[:ko:연천역|연천]]}}
| {{linktext|漣|川}}
|
! colspan="2" rowspan="38" |No service
! rowspan="27" |No service
! rowspan="36" |No service
|
| rowspan="27" |[[Gyeongwon Line]]
|
|0.0
| rowspan="16" |[[Gyeonggi-do]]
| rowspan="2" |[[Yeoncheon County|Yeoncheon-gun]]
|-
|100-2
|[[Jeongok station|Jeongok]]
| {{lang|ko|[[:ko:전곡역|전곡]]}}
| {{linktext|全|谷}}
|
|
|8.7
|8.7
|-
|100-1
|[[Cheongsan station|Cheongsan]]
| {{lang|ko|[[:ko:청산역|청산]]}}
| {{linktext|靑|山}}
|
|
|3.3
|12.0
| rowspan="6" |[[Dongducheon|Dongducheon-si]]
|-
| 100
| [[Soyosan station|Soyosan]]
| {{lang|ko|[[:ko:소요산역|소요산]]}}|| {{linktext|逍|遙|山}}
|
|
| 5.8
| 17.8
----0.0
|-
| 101
| [[Dongducheon station|Dongducheon]]
| {{lang|ko|[[:ko:동두천역|동두천]]}}|| {{linktext|東|豆|川}}
| ●
|
| 2.5
| 2.5
|-
| 102
| [[Bosan station|Bosan]]
| {{lang|ko|[[:ko:보산역|보산]]}}|| {{linktext|保|山}}
| ｜
|
| 1.6
| 4.1
|-
| 103
| [[Dongducheon Jungang station|Dongducheon Jungang]]
| {{lang|ko|[[:ko:동두천중앙역|동두천중앙]]}} || {{linktext|東|豆|川|中|央}}
| ●
|
| 1.4
| 5.5
|-
| 104
| [[Jihaeng station|Jihaeng]]
| {{lang|ko|[[:ko:지행역|지행]]}}|| {{linktext|紙|杏}}
| ●
|
| 1.0
| 6.5
|-
| 105
| [[Deokjeong station|Deokjeong]] <br><small>([[Deokjeong station|Seojeong Univ.]])</small>
| {{lang|ko|[[:ko:덕정역|덕정]] <br /><small>([[:ko:덕정역|서정대학교]])</small>}}|| {{linktext|德|亭}}
| ●
|
| 5.6
| 12.1
| rowspan = "3" | [[Yangju|Yangju-si]]
|-
| 106
| [[Deokgye station|Deokgye]]
| {{lang|ko|[[:ko:덕계역|덕계]]}} || {{linktext|德|溪}}
| ｜
|
| 2.9
| 15.0
|-
| 107
| [[Yangju station|Yangju]] <br><small>([[Yangju station|Kyungdong Univ.]])</small>
| {{lang|ko|[[:ko:양주역|양주]] <br /><small>([[:ko:양주역|경동대]])</small>}}|| {{linktext|楊|州}}
| ●
|
| 5.3
| 20.3
|-
| 108
| [[Nogyang station|Nogyang]]
| {{lang|ko|[[:ko:녹양역|녹양]]}} || {{linktext|綠|揚}}
| ｜
|
| 1.6
| 21.9
| rowspan = "5" | [[Uijeongbu|Uijeongbu-si]]
|-
| 109
| [[Ganeung station|Ganeung]] <br><small>([[Ganeung station|Eulji Univ. Medical Center]])</small>
| {{lang|ko|[[:ko:가능역|가능]] <br /><small>([[:ko:가능역|을지대병원]])</small>}}|| {{linktext|佳|陵}}
| ｜
|
| 1.3
| 23.2
|-
| 110
| [[Uijeongbu station|Uijeongbu]]
| {{lang|ko|[[:ko:의정부역|의정부]]}}|| {{linktext|議|政|府}}
| ●
|
| 1.2
| 24.4
|-
| 111
| [[Hoeryong station|Hoeryong]]
| {{lang|ko|[[:ko:회룡역|회룡]]}}|| {{linktext|回|龍}}
| ●
|{{rint|seoul|uij}}
| 1.6
| 26.0
|-
| 112
| [[Mangwolsa station|Mangwolsa]] <br><small>([[Mangwolsa station|Shinhan Univ. Campus Number 1]])</small>
| {{lang|ko|[[:ko:망월사역|망월사]] <br /><small>([[:ko:망월사역|신한대 제1캠퍼스]])</small>}}|| {{linktext|望|月|寺}}
| ｜
|
| 1.4
| 27.4
|-
| 113
| [[Dobongsan station|Dobongsan]]
| {{lang|ko|[[:ko:도봉산역|도봉산]]}}|| {{linktext|道|峰|山}}
| ●
| {{rint|seoul|7}}
| 2.3
| 29.7
| rowspan = "33" | [[Seoul]]
| rowspan = "5" | [[Dobong-gu]]
|-
| 114
| [[Dobong station|Dobong]]
| {{lang|ko|[[:ko:도봉역|도봉]]}}|| {{linktext|道|峰}}
| ｜
|
| 1.2
| 30.9
|-
| 115
| [[Banghak station|Banghak]] <br><small>([[Banghak station|Dobong-gu Office]])</small>
| {{lang|ko|[[:ko:방학역|방학]] <br /><small>([[:ko:방학역|도봉구청]])</small>}}|| {{linktext|放|鶴}}
| ｜
|
| 1.3
| 32.2
|-
| 116
| [[Chang-dong station|Chang-dong]]
| {{lang|ko|[[:ko:창동역|창동]]}}|| {{linktext|倉|洞}}
| ●
| {{rint|seoul|4}}
| 1.7
| 33.9
|-
| 117
| [[Nokcheon station|Nokcheon]]
| {{lang|ko|[[:ko:녹천역|녹천]]}}|| {{linktext|鹿|川}}
| ｜
|
| 1.0
| 34.9
|-
| 118
| [[Wolgye station|Wolgye]] <br><small>([[Wolgye station|Induk Univ.]])</small>
| {{lang|ko|[[:ko:월계역|월계]] <br /><small>([[:ko:월계역|인덕대학]])</small>}}|| {{linktext|月|溪}}
| ｜
|
| 1.4
| 36.3
| rowspan = "3" | [[Nowon-gu]]
|-
| 119
| [[Kwangwoon University station|Kwangwoon Univ.]]
| {{lang|ko|[[:ko:광운대역|광운대]]}} || {{linktext|光|云|大}}
| ●
| {{rint|seoul|chun}}
| 1.1
| 37.4
|-
| 120
| [[Seokgye station|Seokgye]]
| {{lang|ko|[[:ko:석계역|석계]]}}|| {{linktext|石|溪}}
| rowspan = "42" | Makes all stops
| {{rint|seoul|6}}
| 1.1
| 38.5
|-
| 121
| [[Sinimun station|Sinimun]]
| {{lang|ko|[[:ko:신이문역|신이문]]}}|| {{linktext|新|里|門}}
|
| 1.4
| 39.9
| rowspan = "6" | [[Dongdaemun-gu]]
|-
| 122
| [[Hankuk University of Foreign Studies station|Hankuk Univ. of Foreign Studies]]
| {{lang|ko|[[:ko:외대앞역|외대앞]]}} || {{linktext|外|大}}앞
|
| 0.8
| 40.7
|-
| 123
| [[Hoegi station|Hoegi]]
| {{lang|ko|[[:ko:회기역|회기]]}} || {{linktext|回|基}}
| {{rint|seoul|gyeongjung}} {{rint|seoul|chun}}
| 0.8
| 41.5
|-
| 124
| [[Cheongnyangni station|Cheongnyangni]] <br><small>([[Cheongnyangni station|University of Seoul]])</small>
| {{lang|ko|[[:ko:청량리역|청량리]] <br /><small>([[:ko:청량리역|서울시립대입구]])</small>}}|| {{linktext|淸|凉|里}}
| rowspan = "18" | Makes all stops
| {{rint|seoul|gyeongjung}} {{rint|seoul|chun}} {{rint|seoul|suin-bundang}}<br>{{nowrap|[[File:Korail logo.svg|100x12px|link=Korail]]}} <small>[[Mugunghwa-ho]], [[Nuriro]], [[ITX-Saemaeul]], [[A-Train (Korail)|A-Train]], [[DMZ Train]] & [[ITX-Cheongchun]] services</small><br>{{nowrap|[[File:KTX logo.svg|100x12px|link=KTX]]}}
| rowspan = "10" | Seoul Metro Line 1
| 1.4
| 42.9
|-
| 125
| [[Jegi-dong station|Jegi-dong]] <br><small>([[Jegi-dong station|Korea Association of Health Promotion]])</small>
| {{lang|ko|[[:ko:제기동역|제기동]] <br /><small>([[:ko:제기동역|한국건강관리협회]])</small>}} || {{linktext|祭|基|洞}}
|
| 1.0
| 43.9
|-
| 126
| [[Sinseol-dong station|Sinseol-dong]]
| {{lang|ko|[[:ko:신설동역|신설동]]}} || {{linktext|新|設|洞}}
| {{rint|seoul|2}} (Seongsu Branch) <small></small> {{rint|seoul|ui}}
| 0.9
| 44.8
|-
| 127
| [[Dongmyo station|Dongmyo]]
| {{lang|ko|[[:ko:동묘앞역|동묘앞]]}} || {{linktext|東|廟}}앞
| {{rint|seoul|6}}
| 0.7
| 45.5
| rowspan = "5" | [[Jongno-gu]]
|-
| 128
| [[Dongdaemun station|Dongdaemun]]
| {{lang|ko|[[:ko:동대문역|동대문]]}}|| {{linktext|東|大|門}}
| {{rint|seoul|4}}
| 0.6
| 46.1
|-
| 129
| [[Jongno 5-ga station|Jongno 5(o)-ga]] <br><small>([[Jongno 5(o)-ga station|Samyang Group]])</small>
| {{lang|ko|[[:ko:종로5가역|종로5가]] <br><small>([[:ko:종로5가|삼양그룹]])</small>}} || {{linktext|鍾|路}}5{{linktext|街}}
|
| 0.8
| 46.9
|-
| 130
| [[Jongno 3-ga station|Jongno 3(sam)-ga]]
| {{lang|ko|[[:ko:종로3가역|종로3가]]}} || {{linktext|鍾|路}}3{{linktext|街}}
| {{rint|seoul|3}} {{rint|seoul|5}}
| 0.9
| 47.8
|-
| 131
| [[Jonggak station|Jonggak]] <br><small>([[Jonggak station|Standard Chartered Bank Korea]])</small>
| {{lang|ko|[[:ko:종각역|종각]] <br /><small>([[:ko:종각역|SC제일은행]])</small>}} || {{linktext|鐘|閣}}
|
| 0.8
| 48.6
|-
| 132
| [[City Hall station (Seoul)|City Hall]]
| {{lang|ko|[[:ko:시청역 (서울)|시청]]}}|| {{linktext|市|廳}}
| {{rint|seoul|2}}
| 1.0
| 49.6
| rowspan = "2" | [[Jung-gu, Seoul|Jung-gu]]
|-
| 133
| [[Seoul station]]
| {{lang|ko|[[:ko:서울역|서울역]]}}|| 서울{{linktext|驛}}
| <span style="color: #008000">●</span>
| {{rint|seoul|4}} {{rint|seoul|arx}} {{rint|seoul|gyeongjung}} <small>(Seoul Station branch)</small><br>{{nowrap|[[File:Korail logo.svg|100x12px|link=Korail]]}} <small>[[Mugunghwa-ho]], [[ITX-Saemaeul]], [[S-Train (Korail)|S-Train]] & [[DMZ Train]] services</small><br>{{nowrap|[[File:KTX logo.svg|100x12px|link=KTX]]}}
| 1.1
| 50.7
|-
| 134
| [[Namyeong station|Namyeong]]
| {{lang|ko|[[:ko:남영역|남영]]}} || {{linktext|南|營}}
| <span style="color: #008000">｜</span>
|
| rowspan = "8" | [[Gyeongbu Line]]
| 1.7
| 52.4
| rowspan = "2" | [[Yongsan-gu]]
|-
| 135
| [[Yongsan station|Yongsan]]
| {{lang|ko|[[:ko:용산역|용산]]}}|| {{linktext|龍|山}}
| <span style="color: #ff0000">●</span>
| <span style="color: #0000FF">●</span>
| <span style="color: #008000">｜</span>
| {{rint|seoul|gyeongjung}}<br>{{nowrap|[[File:Korail logo.svg|100x12px|link=Korail]]}} <small>[[Mugunghwa-ho]], [[Saemaeul-ho]], [[ITX-Saemaeul]], [[ITX-Cheongchun]] & [[G-Train (Korail)|G-Train]] services</small><br>{{nowrap|[[File:KTX logo.svg|100x12px|link=KTX]]}}
| 1.5
| 53.9
|-
| 136
| [[Noryangjin station|Noryangjin]]
| {{lang|ko|[[:ko:노량진역|노량진]]}}|| {{linktext|鷺|梁|津}}
| <span style="color: #ff0000">●</span>
| <span style="color: #0000FF">●</span>
| <span style="color: #008000">｜</span>
| {{rint|seoul|9}}
| 2.6
| 56.5
| [[Dongjak-gu]]
|-
| 137
| [[Daebang station|Daebang]]
| {{lang|ko|[[:ko:대방역|대방]]}} || {{linktext|大|方}}
| <span style="color: #ff0000">●</span>
| <span style="color: #0000FF">｜</span>
| <span style="color: #008000">｜</span>
| {{rint|seoul|sil}}
| 1.5
| 58.0
| rowspan = "3" | [[Yeongdeungpo-gu]]
|-
| 138
| [[Singil station|Singil]]
| {{lang|ko|[[:ko:신길역|신길]]}}|| {{linktext|新|吉}}
| <span style="color: #ff0000">●</span>
| <span style="color: #0000FF">｜</span>
| <span style="color: #008000">｜</span>
| {{rint|seoul|5}}
| 0.8
| 58.8
|-
| 139
| [[Yeongdeungpo Station|Yeongdeungpo]]
| {{lang|ko|[[:ko:영등포역|영등포]]}} || {{linktext|永|登|浦}}
| <span style="color: #ff0000">●</span>
| <span style="color: #0000FF">●</span>
| <span style="color: #008000">●↑</span>
| {{nowrap|[[File:Korail logo.svg|100x12px|link=Korail]]}} <small>[[Mugunghwa-ho]], [[Saemaeul-ho]] & [[ITX-Saemaeul]] services</small><br>{{nowrap|[[File:KTX logo.svg|100x12px|link=KTX]]}}
| 1.0
| 59.8
|-
| 140
| [[Sindorim station|Sindorim]]
| {{lang|ko|[[:ko:신도림역|신도림]]}} || {{linktext|新|道|林}}
| <span style="color: #ff0000">●</span>
| <span style="color: #0000FF">●</span>
| <span style="color: #008000">｜</span>
| {{rint|seoul|2}}
| 1.5
| 61.3
| rowspan = "6" | [[Guro-gu]]
|-
| 141
| [[Guro station|Guro]]
| {{lang|ko|[[:ko:구로역|구로]]}} || {{linktext|九|老}}
| <span style="color: #ff0000">●</span>
| <span style="color: #0000FF">●</span>
| <span style="color: #008000">｜</span>
| {{rint|seoul|1}} <small></small>
| 1.1
| 62.4
|-
| 142
| [[Guil station|Guil]] <br><small>([[Guil station|Dongyang Mirae Univ.]])</small>
| {{lang|ko|[[:ko:구일역|구일]] <br /><small>([[:ko:구일역|동양미래대학]])</small>}}|| {{linktext|九|一}}
| <span style="color: #ff0000">｜</span>
| <span style="color: #0000FF">｜</span>
! colspan=2 rowspan = "20" | No service
|
| rowspan = "20" | [[Gyeongin Line]]
| 1.4
| 63.8
|-
| 143
| [[Gaebong station|Gaebong]]
| {{lang|ko|[[:ko:개봉역|개봉]]}} || {{linktext|開|峰}}
| <span style="color: #ff0000">●</span>
| <span style="color: #0000FF">｜</span>
|
| 1.0
| 64.8
|-
| 144
| [[Oryu-dong station|Oryu-dong]]
| {{lang|ko|[[:ko:오류동역|오류동]]}}|| {{linktext|梧|柳|洞}}
| <span style="color: #ff0000">｜</span>
| <span style="color: #0000FF">｜</span>
|
| 1.3
| 66.1
|-
| 145
| [[Onsu station|Onsu]] <br><small>([[Onsu station|Sungkonghoe Univ.]])</small>
| {{lang|ko|[[:ko:온수역|온수]] <br /><small>([[:ko:온수역|성공회대입구]])</small>}}|| {{linktext|溫|水}}
| <span style="color: #ff0000">｜</span>
| <span style="color: #0000FF">｜</span>
| {{rint|seoul|7}}
| 1.9
| 68.0
|-
| 146
| [[Yeokgok station|Yeokgok]] <br><small>([[Yeokgok station|The Catholic Univ. of Korea]])</small>
| {{lang|ko|[[:ko:역곡역|역곡]] <br /><small>([[:ko:역곡역|가톨릭대]])</small>}}|| {{linktext|驛|谷}}
| <span style="color: #ff0000">●</span>
| <span style="color: #0000FF">●</span>
|
| 1.3
| 69.3
| rowspan = "5" | [[Gyeonggi-do]]
| rowspan = "5" | [[Bucheon|Bucheon-si]]
|-
| 147
| [[Sosa station|Sosa]] <br><small>([[Sosa station|Seoul Theological Univ.]])</small>
| {{lang|ko|[[:ko:소사역|소사]] <br /><small>([[:ko:소사역|서울신대]])</small>}}|| {{linktext|素|砂}}
| <span style="color: #ff0000">｜</span>
| <span style="color: #0000FF">｜</span>
| {{rint|seoul|seo}}
| 1.5
| 70.8
|-
| 148
| [[Bucheon station|Bucheon]] <br><small>([[Bucheon station|Bucheon Univ.]])</small>
| {{lang|ko|[[:ko:부천역|부천]] <br /><small>([[:ko:부천역|부천대]])</small>}}|| {{linktext|富|川}}
| <span style="color: #ff0000">●</span>
| <span style="color: #0000FF">●</span>
|
| 1.1
| 71.9
|-
| 149
| [[Jung-dong station (Bucheon)|Jung-dong]]
| {{lang|ko|[[:ko:중동역 (부천)|중동]]}} || {{linktext|中|洞}}
| <span style="color: #ff0000">｜</span>
| <span style="color: #0000FF">｜</span>
|
| 1.7
| 73.6
|-
| 150
| [[Songnae station|Songnae]]
| {{lang|ko|[[:ko:송내역|송내]]}} || {{linktext|松|內}}
| <span style="color: #ff0000">●</span>
| <span style="color: #0000FF">●</span>
|
| 1.0
| 74.6
|-
| 151
| [[Bugae station|Bugae]]
| {{lang|ko|[[:ko:부개역|부개]]}} || {{linktext|富|開}}
| <span style="color: #ff0000">｜</span>
| <span style="color: #0000FF">｜</span>
|
| 1.2
| 75.8
| rowspan = "11" | [[Incheon]]
| rowspan = "4" | [[Bupyeong-gu]]
|-
| 152
| [[Bupyeong station|Bupyeong]] <br><small>([[Bupyeong station|The Catholic Univ. of Korea Incheon St. Mary's Hospital]])</small>
| {{lang|ko|[[:ko:부평역|부평]] <br /><small>([[:ko:부평역|가톨릭대 인천성모병원]])</small>}}|| {{linktext|富|平}}
| <span style="color: #ff0000">●</span>
| <span style="color: #0000FF">●</span>
| {{rint|incheon|1}}
| 1.5
| 77.3
|-
| 153
| [[Baegun station|Baegun]]
| {{lang|ko|[[:ko:백운역|백운]]}} || {{linktext|白|雲}}
| <span style="color: #ff0000">｜</span>
| <span style="color: #0000FF">｜</span>
|
| 1.7
| 79.0
|-
| 154
| [[Dongam station|Dongam]]
| {{lang|ko|[[:ko:동암역|동암]]}} || {{linktext|銅|岩}}
| <span style="color: #ff0000">●</span>
| <span style="color: #0000FF">｜</span>
|
| 1.5
| 80.5
|-
| 155
| [[Ganseok station|Ganseok]]
| {{lang|ko|[[:ko:간석역|간석]]}} || {{linktext|間|石}}
| <span style="color: #ff0000">｜</span>
| <span style="color: #0000FF">｜</span>
|
| 1.2
| 81.7
| rowspan = "4" | [[Michuhol District|Michuhol-gu]]
|-
| 156
| [[Juan station|Juan]]
| {{lang|ko|[[:ko:주안역|주안]]}} || {{linktext|朱|安}}
| <span style="color: #ff0000">●</span>
| <span style="color: #0000FF">●</span>
| {{rint|incheon|2}}
| 1.2
| 82.9
|-
| 157
| [[Dohwa station|Dohwa]]
| {{lang|ko|[[:ko:도화역|도화]]}}|| {{linktext|道|禾}}
| <span style="color: #ff0000">｜</span>
| <span style="color: #0000FF">｜</span>
|
| 1.0
| 83.9
|-
| 158
| [[Jemulpo station|Jemulpo]] <br><small>([[Jemulpo station|Incheon Univ. Jemulpo Campus]])</small>
| {{lang|ko|[[:ko:제물포역|제물포]] <br /><small>([[:ko:제물포역|인천대학교 제물포캠퍼스]])</small>}} || {{linktext|濟|物|浦}}
| <span style="color: #ff0000">●</span>
| <span style="color: #0000FF">｜</span>
|
| 1.0
| 84.9
|-
| 159
| [[Dowon station|Dowon]]
| {{lang|ko|[[:ko:도원역|도원]]}} || {{linktext|桃|源}}
| <span style="color: #ff0000">｜</span>
| <span style="color: #0000FF">｜</span>
|
| 1.4
| 86.3
| rowspan = "3" | [[Jung-gu, Incheon|Jung-gu]]
|-
| 160
| [[Dongincheon station|Dongincheon]]
| {{lang|ko|[[:ko:동인천역|동인천]]}}|| {{linktext|東|仁|川}}
| <span style="color: #ff0000">●</span>
| <span style="color: #0000FF">●</span>
|
| 1.2
| 87.5
|-
| 161
| [[Incheon station|Incheon]]
| {{lang|ko|[[:ko:인천역|인천]]}}|| {{linktext|仁|川}}
! colspan=2 | No service
| {{rint|seoul|suin-bundang}}
| 1.9
| 89.4
|- style = "background:#{{rcr|Seoul Metropolitan Subway|1}}; height: 2pt"
| colspan = "15" |
|-
| colspan="15" |'''↑ Joins other services at Guro station ↑'''
|-
| 141
| [[Guro station|Guro]]
| {{lang|ko|[[:ko:구로역|구로]]}} || {{linktext|九|老}}
| ●
| <span style="color: #ff0000">●</span>
| <span style="color: #0000FF">●</span>
| <span style="color: #ff0000">●</span>
| <span style="color: #008000">｜</span>
| {{rint|seoul|1}} <small></small>
| rowspan = "29" | [[Gyeongbu Line]]
| ---
| 62.4
| width="75" rowspan="4" | [[Seoul]]
| width="100" | [[Guro-gu]]
|-
| P142
| [[Gasan Digital Complex station|Gasan Digital Complex]] <br><small>([[Gasan Digital Complex station|Mario Outlet]])</small>
| {{lang|ko|[[:ko:가산디지털단지역|가산디지털단지]] <br /><small>([[:ko:가산디지털단지역|마리오아울렛]])</small>}}|| {{linktext|加|山}}디지털{{linktext|團|地}}
! rowspan = "36" colspan = "3" | No service
| <span style="color: #ff0000">●</span>
| <span style="color: #008000">｜</span>
| {{rint|seoul|7}}
| 2.4
| 64.8
| rowspan = "3" | [[Geumcheon-gu]]
|-
| P143
| [[Doksan station|Doksan]]
| {{lang|ko|[[:ko:독산역|독산]]}} || {{linktext|禿|山}}
| <span style="color: #ff0000">｜</span>
| <span style="color: #008000">｜</span>
|
| 2.0
| 66.8
|-
| P144
| [[Geumcheon-gu Office station|Geumcheon-gu Office]]
| {{lang|ko|[[:ko:금천구청역|금천구청]]}}|| {{linktext|衿|川|區|廳}}
| <span style="color: #ff0000">○</span>
| | <span style="color: #008000">●</span>
| {{rint|seoul|1}} <small></small>
| 1.2
| 68.0
|-
| P145
| [[Seoksu station|Seoksu]]
| {{lang|ko|[[:ko:석수역|석수]]}} || {{linktext|石|水}}
| <span style="color: #ff0000">｜</span>
| <span style="color: #008000">｜</span>
|
| 2.3
| 70.3
| rowspan = "21" | [[Gyeonggi-do]]
| rowspan = "4" | [[Anyang, Gyeonggi|Anyang-si]]
|-
| P146
| [[Gwanak station|Gwanak]] <br><small>([[Gwanak station|Anyang Art Park]])</small>
| {{lang|ko|[[:ko:관악역|관악]] <br /><small>([[:ko:관악역|안양예술공원]])</small>}} || {{linktext|冠|岳}}
| <span style="color: #ff0000">｜</span>
| <span style="color: #008000">｜</span>
|
| 1.9
| 72.2
|-
| P147
| [[Anyang station|Anyang]]
| {{lang|ko|[[:ko:안양역|안양]]}} || {{linktext|安|養}}
| <span style="color: #ff0000">●</span>
| <span style="color: #008000">●</span>
| {{nowrap|[[File:Korail logo.svg|100x12px|link=Korail]] {{small|[[Mugunghwa-ho]]}}}} <small>(limited service)</small>
| 2.4
| 74.6
|-
| P148
| [[Myeonghak station|Myeonghak]] <br><small>([[Myeonghak station|Sungkyul Univ.]])</small>
| {{lang|ko|[[:ko:명학역|명학]] <br /><small>([[:ko:명학역|성결대]])</small>}} || {{linktext|鳴|鶴}}
| <span style="color: #ff0000">｜</span>
| <span style="color: #008000">｜</span>
|
| 2.2
| 76.8
|-
| P149
| [[Geumjeong station|Geumjeong]]
| {{lang|ko|[[:ko:금정역|금정]]}} || {{linktext|衿|井}}
| <span style="color: #ff0000">●</span>
| <span style="color: #008000">｜</span>
| {{rint|seoul|4}}
| 1.4
| 78.2
| rowspan = "3" | [[Gunpo|Gunpo-si]]
|-
| P150
| [[Gunpo station|Gunpo]]
| {{lang|ko|[[:ko:군포역|군포]]}} || {{linktext|軍|浦}}
| <span style="color: #ff0000">｜</span>
| <span style="color: #008000">●</span>
|
| 2.2
| 80.4
|-
| P151
| [[Dangjeong station|Dangjeong]] <br><small>([[Dangjeong station|Hansei Univ.]])</small>
| {{lang|ko|[[:ko:당정역|당정]] <br /><small>([[:ko:당정역|한세대]])</small>}} || {{linktext|堂|井}}
| <span style="color: #ff0000">｜</span>
| <span style="color: #008000">｜</span>
|
| 1.2
| 81.6
|-
| P152
| [[Uiwang station|Uiwang]] <br><small>([[Uiwang station|Korea Nat'l Univ. of Transportation]])</small>
| {{lang|ko|[[:ko:의왕역|의왕]] <br /><small>([[:ko:의왕역|한국교통대]])</small>}} || {{linktext|義|王}}
| <span style="color: #ff0000">○</span>
| <span style="color: #008000">●</span>
|
| 3.0
| 84.6
| [[Uiwang|Uiwang-si]]
|-
| P153
| [[Sungkyunkwan University station|Sungkyunkwan Univ.]]
| {{lang|ko|[[:ko:성균관대역|성균관대]]}} || {{linktext|成|均|館|大}}
| <span style="color: #ff0000">●</span>
| <span style="color: #008000">●</span>
|
| 2.9
| 87.5
| rowspan = "4" | [[Suwon|Suwon-si]]
|-
| P154
| [[Hwaseo station|Hwaseo]]
| {{lang|ko|[[:ko:화서역|화서]]}} || {{linktext|華|西}}
| <span style="color: #ff0000">｜</span>
| <span style="color: #008000">｜</span>
|
| 2.6
| 90.1
|-
| P155
| [[Suwon station|Suwon]]
| {{lang|ko|[[:ko:수원역|수원]]}} || {{linktext|水|原}}
| <span style="color: #ff0000">●</span>
| <span style="color: #008000">●</span>
| {{rint|seoul|suin-bundang}}<br>{{nowrap|[[File:Korail logo.svg|100x12px|link=Korail]]}} <small>[[Mugunghwa-ho]], [[Saemaeul-ho]], [[ITX-Saemaeul]], [[G-Train (Korail)|G-Train]], & [[S-Train (Korail)|S-Train]] services</small><br>{{nowrap|[[File:KTX logo.svg|100x12px|link=KTX]]}}
| 2.1
| 92.2
|-
| P156
| [[Seryu station|Seryu]]
| {{lang|ko|[[:ko:세류역|세류]]}} || {{linktext|細|柳}}
| <span style="color: #ff0000">｜</span>
| <span style="color: #008000">｜</span>
|
| 2.9
| 95.1
|-
| P157
| [[Byeongjeom station|Byeongjeom]] <br><small>([[Byeongjeom station|Hanshin Univ.]])</small>
| {{lang|ko|[[:ko:병점역|병점]] <br /><small>([[:ko:병점역|한신대]])</small>}} || {{linktext|餅|店}}
| <span style="color: #ff0000">●</span>
| <span style="color: #008000">●</span>
| {{rint|seoul|1}} <small></small>
| 4.3
| 99.4
| [[Hwaseong, Gyeonggi|Hwaseong-si]]
|-
| P158
| [[Sema station|Sema]]
| {{lang|ko|[[:ko:세마역|세마]]}} || {{linktext|洗|馬}}
| <span style="color: #ff0000">｜</span>
| <span style="color: #008000">｜</span>
|
| 2.4
| 101.8
| rowspan = "3" | [[Osan|Osan-si]]
|-
| P159
| [[Osan University station|Osan Univ.]]
| {{lang|ko|[[:ko:오산대역|오산대]]}}|| {{linktext|烏|山|大}}
| <span style="color: #ff0000">｜</span>
| <span style="color: #008000">｜</span>
|
| 2.7
| 104.5
|-
| P160
| [[Osan station|Osan]]
| {{lang|ko|[[:ko:오산역|오산]]}}|| {{linktext|烏|山}}
| <span style="color: #ff0000">●</span>
| <span style="color: #008000">●</span>
| {{nowrap|[[File:Korail logo.svg|100x12px|link=Korail]] {{small|[[Mugunghwa-ho]] (limited service)}}}}
| 2.7
| 107.2
|-
| P161
| [[Jinwi station|Jinwi]]
| {{lang|ko|[[:ko:진위역|진위]]}}|| {{linktext|振|威}}
| <span style="color: #ff0000">｜</span>
| <span style="color: #008000">｜</span>
|
| 4.0
| 111.2
| rowspan = "5" | [[Pyeongtaek|Pyeongtaek-si]]
|-
| P162
| [[Songtan station|Songtan]]
| {{lang|ko|[[:ko:송탄역|송탄]]}}|| {{linktext|松|炭}}
| <span style="color: #ff0000">｜</span>
| <span style="color: #008000">｜</span>
|
| 3.8
| 115.0
|-
| P163
| [[Seojeongni station|Seojeongni]] <br><small>([[Seojeongni station|Kookje College]])</small>
| {{lang|ko|[[:ko:서정리역|서정리]] <br /><small>([[:ko:서정리역|국제대학]])</small>}}|| {{linktext|西|井|里}}
| <span style="color: #ff0000">●</span>
| <span style="color: #008000">●</span>
| {{nowrap|[[File:Korail logo.svg|100x12px|link=Korail]] {{small|[[Mugunghwa-ho]] (limited service)}}}}
| 2.2
| 117.2
|-
| P164
| [[PyeongtaekJije station|PyeongtaekJije]] <br><small>([[PyeongtaekJije station|Korea Nat'l Univ. of Welfare]])</small>
| {{lang|ko|[[:ko:평택지제역|평택지제]] <br /><small>([[:ko:평택지제역|한국복지대학]])</small>}}|| {{linktext|平|澤|芝|制}}
| <span style="color: #ff0000">｜</span>
| <span style="color: #008000">｜</span>
| {{rint|kr|SRT}}
| 4.8
| 122.0
|-
| P165
| [[Pyeongtaek station|Pyeongtaek]]
| {{lang|ko|[[:ko:평택역|평택]]}}|| {{linktext|平|澤}}
| <span style="color: #ff0000">●</span>
| <span style="color: #008000">●</span>
| {{nowrap|[[File:Korail logo.svg|100x12px|link=Korail]]}} <small>[[Mugunghwa-ho]], [[Saemaeul-ho]] (limited service) & [[ITX-Saemaeul]] (limited service)</small>
| 3.7
|125.7
|-
| P166
| [[Seonghwan station|Seonghwan]] <br><small>([[Seonghwan station|Namseoul Univ.]])</small>
| {{lang|ko|[[:ko:성환역|성환]] <br /><small>([[:ko:성환역|남서울대]])</small>}}|| {{linktext|成|歡}}
| <span style="color: #ff0000">●</span>
| <span style="color: #008000">●</span>
| {{nowrap|[[File:Korail logo.svg|100x12px|link=Korail]] {{small|[[Mugunghwa-ho]]}}}} <small>(limited service)</small>
| 9.4
| 135.1
| rowspan = "12" | [[Chungcheongnam-do]]
| rowspan = "6" | [[Cheonan|Cheonan-si]]
|-
| P167
| [[Jiksan station|Jiksan]]
| {{lang|ko|[[:ko:직산역|직산]]}} || {{linktext|稷|山}}
| <span style="color: #ff0000">｜</span>
| <span style="color: #008000">｜</span>
|
| 5.4
| 140.5
|-
| P168
| [[Dujeong station|Dujeong]]
| {{lang|ko|[[:ko:두정역|두정]]}} || {{linktext|斗|井}}
| <span style="color: #ff0000">●</span>
| <span style="color: #008000">●</span>
|
| 3.8
| 144.3
|-
| P169
| [[Cheonan station|Cheonan]]
| {{lang|ko|[[:ko:천안역|천안]]}}|| {{linktext|天|安}}
| <span style="color: #ff0000">●</span>
| <span style="color: #008000">●</span>
| {{nowrap|[[File:Korail logo.svg|100x12px|link=Korail]]}} <small>[[Mugunghwa-ho]], [[Saemaeul-ho]], [[ITX-Saemaeul]] & [[S-Train (Korail)|S-Train]] services</small>
| 3.0
| 147.3
|-
| P170
| [[Bongmyeong station|Bongmyeong]]
| {{lang|ko|[[:ko:봉명역|봉명]]}} || {{linktext|鳳|鳴}}
| colspan=2 rowspan=8 | Makes all stops (limited service)
|
| rowspan=8 | [[Janghang Line]]
| 1.3
| 148.6
|-
| P171
| [[Ssangyong station|Ssangyong]] <br><small>([[Ssangyong station|Korea Nazarene Univ.]])</small>
| {{lang|ko|[[:ko:쌍용역 (천안)|쌍용]] <br><small>([[:ko:쌍용역 (천안)|나사렛대]])</small>}}|| {{linktext|雙|龍}}
|
| 1.6
| 150.2
|-
| P172
| [[Asan station|Asan]] <br><small>([[Asan station|Sun Moon Univ.]])</small>
| {{lang|ko|[[:ko:아산역|아산]] <br /><small>([[:ko:아산역|선문대]])</small>}}|| {{linktext|牙|山}}
| {{nowrap|[[File:Korail logo.svg|100x12px|link=Korail]]}} <small>[[Mugunghwa-ho]], [[Saemaeul-ho]] & [[G-Train (Korail)|G-Train]]</small><br>{{nowrap|[[File:KTX logo.svg|100x12px|link=KTX]]}}<br>{{rint|kr|srt}} <small>(at Cheonan-Asan station)</small>
| 1.6
| 151.8
| rowspan = "6" | [[Asan|Asan-si]]
|-
| P173
| [[Tangjeong station|Tangjeong]]
| {{lang|ko|[[:ko:탕정역|탕정]]}} || {{linktext|湯|井}}
|
| 1.8
| 153.6
|-
| P174
| [[Baebang station|Baebang]]
| {{lang|ko|[[:ko:배방역|배방]]}}|| {{linktext|排|芳}}
|
| 3.1
| 156.7
|- bgcolor="lightgrey"
| ''P175''
| ''[[Punggi station (Chungcheongnam-do)|Punggi]]  <small>(2025)</small>''
| 풍기 || 豊基
|
|
|
|-
| P176
| [[Onyangoncheon station|Onyangoncheon]]
| {{lang|ko|[[:ko:온양온천역|온양온천]]}}|| {{linktext|溫|陽|溫|泉}}
| {{nowrap|[[File:Korail logo.svg|100x12px|link=Korail]]}} <small>[[Mugunghwa-ho]], [[Saemaeul-ho]], & [[G-Train (Korail)|G-Train]] services</small>
| 4.9
| 161.6
|-
| P177
| [[Sinchang station|Sinchang]] <br><small>([[Sinchang station|Soonchunhyang Univ.]])</small>
| {{lang|ko|[[:ko:신창역 (아산)|신창]] <br><small>([[:ko:신창역 (아산)|순천향대]])</small>}}|| {{linktext|新|昌}}
|
| 5.1
| 166.7
|- style = "background:#{{rcr|Seoul Metropolitan Subway|1}}; height: 2pt"
| colspan = "15" |
|}

=== Yeongdeungpo–Gwangmyeong shuttle service ===
{| class="wikitable" style="text-align:center;"
! Station<br />number
! width="250" | Station name<br />{{nobold|<small>English</small>}}
! width="150" | Station name<br />{{nobold|<small>[[Hangul]]</small>}}
! width="150" | Station name<br />{{nobold|<small>[[Hanja]]</small>}}
! width="160" | Transfer
! Line name
! Distance<br />{{nobold|<small>in km</small>}}
! Total<br />distance
! colspan = "2" | Location
|- style = "background:#{{rcr|Seoul Metropolitan Subway|1}}; height: 2pt"
| colspan = "10" |
|-
| colspan = "10" | '''↑ Same stops as all-stop Gyeongbu Line services until Yeongdeungpo ↑'''
|-
| {{center|P144}}
| [[Geumcheon-gu Office station|Geumcheon-gu Office]]
| {{lang|ko|[[:ko:금천구청역|금천구청]]}} || {{linktext|衿|川|區|廳}}
| {{rint|seoul|1}} <small></small> (Main Lines)
| rowspan = "2" | {{center|[[Gyeongbu high-speed railway]]}}
| {{center|---}}
| {{center|68.0}}
| {{center|[[Seoul]]}}
| {{center|[[Geumcheon-gu]]}}
|-
| {{center|P144-1}}
| [[Gwangmyeong station|Gwangmyeong]]
| {{lang|ko|[[:ko:광명역|광명]]}}|| {{linktext|光|明}}
| {{nowrap|[[File:KTX logo.svg|100x12px|link=KTX]]}}
| {{center|4.7}}
| {{center|72.7}}
| {{center|[[Gyeonggi-do]]}}
| {{center|[[Gwangmyeong|Gwangmyeong-si]]}}
|- style = "background:#{{rcr|Seoul Metropolitan Subway|1}}; height: 2pt"
| colspan = "10" |
|}

=== Byeongjeom Depot spur service ===
{| class="wikitable" style="text-align:center;"
! Station<br />number
! width="250" | Station name<br />{{nobold|<small>English</small>}}
! width="150" | Station name<br />{{nobold|<small>[[Hangul]]</small>}}
! width="150" | Station name<br />{{nobold|<small>[[Hanja]]</small>}}
! width="160" | Transfer
! Distance<br />{{nobold|<small>in km</small>}}
! Total<br />distance
! colspan = "2" | Location
|- style = "background:#{{rcr|Seoul Metropolitan Subway|1}}; height: 2pt"
| colspan = "9" |
|-
| colspan = "9" | '''↑ Joins other Gyeongbu Line services at Byeongjeom ↑'''
|-
| {{center|P157}}
| [[Byeongjeom station|Byeongjeom]] <br><small>([[Byeongjeom station|Hanshin Univ.]])</small>
| {{lang|ko|[[:ko:병점역|병점]] <br /><small>([[:ko:병점역|한신대]])</small>}}|| {{linktext|餅|店}}
| {{rint|seoul|1}} <small></small>
| {{center|---}}
| {{center|99.4}}
| rowspan = "2" | {{center|[[Gyeonggi-do]]}}
| {{center|[[Hwaseong, Gyeonggi|Hwaseong-si]]}}
|-
| {{center|P157-1}}
| [[Seodongtan station|Seodongtan]]
| {{lang|ko|[[:ko:서동탄역|서동탄]]}} || {{linktext|西|東|灘}}
|
| {{center|2.2}}
| {{center|101.6}}
| {{center|[[Osan|Osan-si]]}}
|- style = "background:#{{rcr|Seoul Metropolitan Subway|1}}; height: 2pt"
| colspan = "9" |
|}

== Historical timeline ==
[[File:Early 1980s Seoul Subway Map - Flickr - skinnylawyer.jpg|thumb|Fragment of a Seoul Subway map from the early 1980s, which shows the Korail-managed portions of Line 1 in blue and the Seoul Metro-managed underground portion as red]]
1974
:August 15: [[Seoul Subway Line 1 (Metro)|Line 1]] is officially opened with 9 stations from Seoul to Cheongnyangni (whose distance is {{convert|7.8|km|mi|sp=us}}),<ref name="Seoul-Subway-stats" /> creating a system of 28 stations (excluding the 9 metro stations) on national railroads from Seongbuk station (now: [[Kwangwoon University station]], the then-northern terminus) to [[Incheon station]] and [[Suwon station]]. [[Korail]] is named '''Korean National Railroad''', with Line 1 just referring to the Seoul-Cheongnyangni section.

1978
:December 9: The Gyeongwon Line from [[Yongsan station|Yongsan]] to Seongbuk opens as a new branch, with [[Ichon station|Ichon]] and [[Eungbong station|Seongsu]] (now part of the Jungang Line).

1979
:February 1: [[Sungkyunkwan University station|Yuljeon station]] is opened.

1980
:January 5: [[Sinimun station]] is opened.
:April 1: [[Seobinggo station|Seobinggo]], [[Hannam station|Hannam]] and [[Hoegi station|Hoegi]] (now part of the Jungang Line) are opened.
:July 10: Seongsu is renamed ''[[Eungbong station]]''

1982
:August 2: [[Seoksu station]] is opened.

1984
:January 1: [[Sungkyunkwan University station|Yuljeon station]] is renamed '''Seongdae-ap station'''.
:May 22: [[Sindorim station]] is opened.
:November 20: [[Baegun station]] is opened.

1985
:January 14: [[Seokgye station]] is opened.
:April 20: [[Chang-dong station|Chang-dong]] is opened as a northward extension.
:August 22: [[Wolgye station|Wolgye]] and [[Nokcheon station|Nokcheon]] are opened.
:October 18: [[Oksu station]] (now part of the Jungang Line) is opened.

1986
:September 2: 6 stations from [[Uijeongbu station|Uijeongbu]] to [[Chang-dong station|Chang-dong]] are opened as a northward extension.

1987
:October 5: [[Ganeung station|Uijeongbu Bukbu station]] is opened.
:December 31: [[Jung-dong station (Bucheon)|Jung-dong station]] is opened.

1988
:January 16: [[Onsu station]] is opened.
:October 25: The Ansan Line is opened as a southward branch, from [[Geumjeong station]] to [[Ansan station]].

1994
:July 11: [[Ganseok station|Ganseok]] and [[Dowon station|Dowon]] are opened.
:December 1: [[Sungkyunkwan University station|Seongdae-ap station]] is renamed to '''Sungkyunkwan University'''.

1995
:February 16: [[Guil station]] is opened.

1996
:January 1: [[Hankuk University of Foreign Studies station|Hwigyeong station]] is renamed to '''Hankuk University of Foreign Studies station'''
:March 28: [[Bugae station]] is opened.

1997
:April 30: [[Sosa station]] is opened.

1998
:January 7: [[Singil station|Singil]] and [[Doksan station|Doksan]] are opened.

2000
:'''Korea National Railroad''' and Line 1 are integrated as Seoul (Metropolitan) Subway Line 1.

2001
:November 30: [[Dohwa station]] is opened.

2003
:April 30: [[Seryu station|Seryu]] and [[Byeongjeom station|Byeongjeom]] are opened as a southward extension. The Ansan Line service is replaced with an extended [[Seoul Subway Line 4]].

2004
:August 25: Bugok station is renamed [[Uiwang station]].

2005
:January 20: 8 stations from [[Byeongjeom station|Byeongjeom]] to [[Cheonan station|Cheonan]] are opened as another southward extension.
:December 16: The Gyeongwon Line branch from [[Yongsan station]] to [[Hoegi station]] and the [[Jungang Line]] from [[Hoegi station]] to [[Deokso station]] open and are renamed to the separate '''Yongsan-Deokso Line'''. This service was the predecessor to the current [[Jungang Line]].
:December 21: [[Dongmyo station]] is opened.
:December 27: [[Sema station|Sema]] and [[Osan College station|Osan College]] stations are opened.

2006
:June 30: [[Jinwi station|Jinwi]] and [[Jije station|Jije]] stations are opened.
:July 1: Garibong station is renamed to '''Gasan Digital Complex'''.
:December 15: 8 stations from [[Soyosan station|Soyosan]] to [[Ganeung station|Uijeongbu Bukbu]] are opened as a northward extension. A [[spur line]] to [[Gwangmyeong station]] is created. Uijeongbu Bukbu station is renamed to '''Ganeung'''.

2007
:December 28: [[Deokgye station]] is opened.

2008
:December 15: 6 stations from [[Cheonan station|Cheonan]] to [[Sinchang station|Sinchang]] are opened as another southward extension.
:December 29: Siheung station is renamed to '''Geumcheon-gu Office'''.

2010
:January 21: [[Dangjeong station]] is opened.
:February 26: [[Seodongtan station]] is opened.

2015
:February 3: Gyeongin Line express trains start stopping at [[Gaebong station|Gaebong]] and [[Jemulpo station|Jemulpo]] stations.

2017
:July 6: A new [[Limited express|limited express service]] was launched between [[Yongsan station|Yongsan]] and [[Dongincheon station|Dongincheon]] stations.

2019
:December 30: All Gyeongbu Line express trains start stopping at [[Geumjeong station|Geumjeong]] and [[Sungkyunkwan University station|Sungkyunkwan University]] stations and are extended to [[Cheongnyangni station|Cheongnyangni]]. Gyeongbu Line express trains no longer stop at [[Gunpo station]].

2021
:October 30: [[Tangjeong station]] opened as an in-fill station between [[Asan station|Asan]] and [[Baebang station|Baebang]].

2023
:December 16: Three stations from [[Soyosan station]] to [[Yeoncheon station]] on the Gyeongwon Line are opened as a northward extension of the line.<ref>{{Cite news |last=병극 |first=장 |date=14 December 2023 |title="전철 1호선의 진격...경원선 동두천-연천까지 달린다" |trans-title=“The advance of subway line 1... Gyeongwon Line runs from Dongducheon to Yeoncheon.”<!--via google translate--> |work=Rail Economy News |url=https://www.redaily.co.kr/news/articleViewAmp.html?idxno=6967 |access-date=20 December 2023}}</ref>

== Rolling stock ==

=== Current ===
* [[Seoul Metro 1000 series (disambiguation)|Seoul Metro 1000 series]]
** [[Seoul Metro 1000 series (Rheostat Control)|Rheostat-controlled electric car (rebuilt cars)]] – since 1974
** [[Seoul Metro 1000 series (VVVF)|GTO-VVVF inverter-controlled electric car]] – since 1999 (Restricted to DC/AC neutral areas)
* [[Korail Class 311000]]
** First generation – since 1996 (Currently in process of being retired)
** Second generation – since 2003
** Third generation – since 2005
** Fourth generation – since 2019 (Korail Class 312000)
* [[Korail Class 311000#Class 319000|Korail Class 319000]] (for Gwangmyeong Shuttle) – since 2006

<gallery class="center">
File:Korail Class 311 (2nd generation).JPG|Korail Class 311000 (Second generation)
File:Korail Class 311000 3rd A01.JPG|Korail Class 311000 (Third generation)
File:Korail Line 1 Yeongdeungpo-Gwangmyeong shuttle train at Sindorim.jpg|Korail Class 319000
</gallery>

=== Former ===
* [[Seoul Metro 1000 series (Rheostat Control)|Seoul Metro 1000 series]]
** Rheostat-controlled electric car (1st batch, unrebuilt) – 1974-2004
* [[Korail Class 1000]]
** First generation – 1974-2004 (some non-driving cars lasted until 2014)
** Second generation – 1986-2017 (some non-driving cars lasted until 2019)
** Third generation – 1994-2020

<gallery class="center">
File:Korail EMU series 1000(1).JPG|Korail Class 1000 (2nd batch)
</gallery>

== Depots and facilities ==
''(from north to south)''
* Majeon signal box between Deokye and Yangju stations
* Seongbuk Depot
* Imun Depot
* Guro Depot
* Siheung Depot (actually after [[Oido station]] on Line 4, also used for heavy maintenance of Line 1 trains owned by Korail, accessed by a crossover located after Geumjeong station)
* Byeongjeom Depot

== See also ==
* [[Subways in South Korea]]
* [[Seoul Metropolitan Subway]]

== References ==
{{commons category}}
{{reflist}}

== External links ==
* [https://www.korail.com Korail]{{in lang|ko}}
* [https://web.archive.org/web/20120414225109/http://www.smrt.co.kr/program/cyberStation/main2.jsp?lang=e Map, station and route finder]
* [http://www.urbanrail.net/as/kr/seoul/seoul.htm UrbanRail.Net]

{{Korail Lines}}
{{Public transport in the Seoul Metropolitan Area}}
{{Seoul Metropolitan Subway stations|line1=yes}}
{{South Korea rapid transit}}

[[Category:Seoul Subway Line 1| ]]
[[Category:Seoul Metropolitan Subway lines]]
[[Category:Railway lines opened in 1974]]
[[Category:1500 V DC railway electrification]]
[[Category:25 kV AC railway electrification]]