Editing Arnprior (section)

== Demographics ==
[[File:Arnprior ON downtown Elgin St.jpg|thumb|Elgin Street in Arnprior]]
In the [[2021 Canadian census|2021 Census of Population]] conducted by [[Statistics Canada]], Arnprior had a population of {{val|9629|fmt=commas}} living in {{val|4308|fmt=commas}} of its {{val|4458|fmt=commas}} total private dwellings, a change of {{percentage|{{#expr:9629-8795}}|8795|1}} from its 2016 population of {{val|8795|fmt=commas}}. With a land area of {{convert|13.04|km2|sqmi|abbr=on}}, it had a population density of {{Pop density|9629|13.04|km2|sqmi|prec=1}} in 2021.<ref name=2021census>{{cite web | url=https://www150.statcan.gc.ca/t1/tbl1/en/tv.action?pid=9810000203&geocode=A000235 | title=Population and dwelling counts: Canada, provinces and territories, census divisions and census subdivisions (municipalities), Ontario | publisher=[[Statistics Canada]] | date=February 9, 2022 | accessdate=March 30, 2022}}</ref>
{{Canada census
 |location = Arnprior
 |2021_population=9,629 | 2021_pop_delta=+9.5  | 2021_land_area=13.04 | 2021_pop_density=738.5
 |2021_median_age=48.0 | 2021_median_age_m=45.6 | 2021_median_age_f=50.0
 |2021_total_pvt_dwell=4,458 |2021_occ_pvt_dwell=4,308 |2021_mean_hh_income=75,500 
 |2021_geocode=2021A00053547002 | 2021_access_date=2023-10-19
 |2016_population=8,795 | 2016_pop_delta=+8.4 | 2016_land_area=13.07 | 2016_pop_density=672.7
 |2016_median_age=48.0 | 2016_median_age_m=45.5 | 2016_median_age_f=50.5
 |2016_total_pvt_dwell=4,124 |2016_occ_pvt_dwell=3,912 | 2016_mean_hh_income=61,810 | 2016_access_date=2024-08-02
}}

{{Historical populations
|title       = {{Nowrap|Historical census populations –}} Arnprior
|align       = none
|cols        = 3
|percentages = 
|footnote    = Population counts are not adjusted for boundary changes.
|source      = Statistics Canada
| 1921 |4077
| 1931 |4023
| 1941 |3895
| 1951 |4381
| 1956 |5137
| 1961 |5474
| 1966 |5693
| 1971 |6016
| 1976 |6111
| 1981 |5828
| 1986 |6040
| 1991 |6679
| 1996 |7113
| 2001 |7192
| 2006 |7158
| 2011 |8114
| 2016 |8795
| 2021 |9629
}}