Editing Pac-12 Conference (section)

=== Former affiliate members ===
{| class="wikitable sortable" style="text-align:center"
|-
! Institution || Location || Founded || Joined || Left || Type || Nickname || class="unsortable"|Colors || Pac-12<br/>sport(s) || Primary<br/>conference !! Current<br>conference<br>in former<br>Pac-12 sport
|-
| '''[[Boise State University]]'''
| [[Boise, Idaho]]
| 1932
| 1987
| 2017
| rowspan="8" | Public
| [[Boise State Broncos|Broncos]]
| {{college color boxes|Boise State Broncos}}
| rowspan="2" | Wrestling
| [[Mountain West Conference|Mountain West]]
| {{sort|ZZZ|N/A}}{{efn|group=faff|Boise State dropped wrestling after the 2016–17 season.}}
|-
| rowspan="2"|{{sort|UC Davis|'''[[University of California, Davis]]'''}}
| rowspan="2"|[[Davis, California]]
| rowspan="2"|1905
| 1992
| 2010
| rowspan="2"|[[UC Davis Aggies|Aggies]]
| rowspan="2"|{{college color boxes|UC Davis Aggies}}
| rowspan="4" | [[Big West Conference|Big West]]
| {{sort|ZZZ|N/A}}{{efn|group=faff|UC Davis dropped wrestling after the 2009–10 season.}}
|-
| 2023
| 2024
| Women's lacrosse
| [[Big 12 Conference|Big 12]]
|-
| {{sort|UCSB|'''[[University of California, Santa Barbara]]'''}}
| [[Santa Barbara, California]]
| 1909
| rowspan="2"|2010
| rowspan="2"|2015
| [[UC Santa Barbara Gauchos|Gauchos]]
| {{college color boxes|UCSB Gauchos}}
| rowspan="2" | Men's swimming & diving
| rowspan=2 | [[Big West Conference|Big West]]
|-
| '''[[California Polytechnic State University]]'''
| [[San Luis Obispo, California]]
| 1901
| [[Cal Poly Mustangs|Mustangs]]
| {{college color boxes|Cal Poly Mustangs}}
|-
| {{sort|Fresno State|'''[[California State University, Fresno]]'''}}
| [[Fresno, California]]
| 1911
| rowspan="2"|1986
| 1991
| [[Fresno State Bulldogs|Bulldogs]]
| {{college color boxes|Fresno State Bulldogs}}
| rowspan="2" | Wrestling
| [[Mountain West Conference|Mountain West]]
| {{sort|ZZZ|N/A}}{{efn|group=faff|Fresno State eventually dropped wrestling after the 2005–06 season. The program was revived in 2017 and competed in the [[Big 12 Conference]] until being discontinued again after the 2020–21 season.}}
|-
| '''[[California State University, Fullerton]]'''
| [[Fullerton, California]]
| 1957
| 2011
| [[Cal State Fullerton Titans|Titans]]
| {{college color boxes|Cal State Fullerton Titans}}
| [[Big West Conference|Big West]]
| {{sort|ZZZ|N/A}}{{efn|group=faff|Cal State Fullerton dropped wrestling after the 2010–11 season.}}
|-
| '''[[Eastern Washington University]]'''
| [[Cheney, Washington]]
| 1882
| rowspan="2"|1982
| 1990
| [[Eastern Washington Eagles|Eagles]]
| {{college color boxes|Eastern Washington Eagles}}
| rowspan="3" | Baseball
| [[Big Sky Conference|Big Sky]]
| {{sort|ZZZ|N/A}}{{Efn|group=faff|Eastern Washington dropped baseball after the 1990 season.}}
|-
| '''[[Gonzaga University]]'''
| [[Spokane, Washington]]
| 1887
| 1995
| Private
| [[Gonzaga Bulldogs|Bulldogs]]
| {{college color boxes|Gonzaga Bulldogs}}
| [[West Coast Conference|WCC]]
| [[West Coast Conference|WCC]]
|-
| rowspan="2"|'''[[Portland State University]]'''
| rowspan="2"|[[Portland, Oregon]]
| rowspan="2"|1946
| 1983  
| 1998
| rowspan="2"|Public
| rowspan="2"|[[Portland State Vikings|Vikings]]
| rowspan="2"|{{college color boxes|Portland State Vikings}}
| rowspan="2"|[[Big Sky Conference|Big Sky]]
| {{sort|ZZZ|N/A}}{{efn|group=faff|Portland State dropped baseball after the 1998 season (1997–98 school year).}}
|-
| 1998
| 2009
| Wrestling
| {{sort|ZZZ|N/A}}{{efn|group=faff|Portland State dropped wrestling after the 2008–09 season.}}
|-
| {{sort|Portland|'''[[University of Portland]]'''}}
| [[Portland, Oregon]]
| 1901
| 1982
| 1995
| Private
| [[Portland Pilots|Pilots]]
| {{college color boxes|Portland Pilots}}
| Baseball
| [[West Coast Conference|WCC]]
| [[West Coast Conference|WCC]]
|-
| rowspan="2"|'''[[San Diego State University]]'''
| rowspan="2"|[[San Diego|San Diego, California]]
| rowspan="2"| 1897
| 2005
| rowspan="2"| 2024
| rowspan="4" | Public
| rowspan="2"| [[San Diego State Aztecs|Aztecs]]
| rowspan="2"| {{college color boxes|San Diego State Aztecs}}
| Men's soccer
| rowspan="4"| [[Mountain West Conference|Mountain West]]
| [[Western Athletic Conference|WAC]]
|-
| 2023
| Women's lacrosse
| [[Big 12 Conference|Big 12]]
|-
| '''[[San Jose State University]]'''
| [[San Jose, California]]
| 1857
| rowspan="2"|1986
| 1988
| [[San Jose State Spartans|Spartans]]
| {{college color boxes|San Jose State Spartans}}
| rowspan="2" | Wrestling
| {{sort|ZZZ|N/A}}{{efn|group=faff|San Jose State dropped wrestling after the 1987–88 season.}}
|-
| '''[[Utah State University]]'''
| [[Logan, Utah]]
| 1888
| 1989
| [[Utah State Aggies|Aggies]]
| {{college color boxes|Utah State Aggies}}
| {{sort|ZZZ|N/A}}{{efn|group=faff|Utah State dropped wrestling after the 1988–89 season.}}
|}

;Notes:
{{notelist|group=faff}}