Western Conference (USL Championship)

The Western Conference is one of two conferences in USL Championship soccer.

Clubs timeline
undefined undefined undefined undefined

2015 (12 teams)
Changes from 2014: USL Pro expanded and was rebranded as simply USL; the round robin table was split into two conferences: Eastern and Western.
 * Arizona United SC
 * Austin Aztex
 * Colorado Springs Switchbacks
 * LA Galaxy II
 * Oklahoma City Energy
 * Orange County Blues
 * Portland Timbers 2
 * Real Monarchs SLC
 * Sacramento Republic
 * Seattle Sounders 2
 * Tulsa Roughnecks
 * Vancouver Whitecaps 2

2016 (15 teams)

 * Arizona United SC
 * Colorado Springs Switchbacks
 * LA Galaxy II
 * Oklahoma City Energy
 * Orange County Blues
 * Portland Timbers 2
 * Real Monarchs SLC
 * Rio Grande Valley FC Toros
 * Sacramento Republic
 * St. Louis FC
 * San Antonio FC
 * Seattle Sounders 2
 * Swope Park Rangers
 * Tulsa Roughnecks
 * Vancouver Whitecaps 2

Changes from 2015: Rio Grande Valley FC Toros, the Swope Park Rangers and San Antonio FC were added as expansion franchises; Saint Louis FC moved in from the Eastern Conference; the Austin Aztex went on hiatus

2017 (15 teams)

 * Colorado Springs Switchbacks
 * LA Galaxy II
 * Oklahoma City Energy
 * Orange County SC
 * Phoenix Rising FC
 * Portland Timbers 2
 * Real Monarchs SLC
 * Reno 1868 FC
 * Rio Grande Valley FC Toros
 * Sacramento Republic
 * San Antonio FC
 * Seattle Sounders 2
 * Swope Park Rangers
 * Tulsa Roughnecks
 * Vancouver Whitecaps 2

Changes from 2016: Arizona United SC was renamed Phoenix Rising FC; the Orange County Blues was renamed Orange County SC; the Austin Aztex folded; Reno 1868 FC was added as an expansion franchise; Saint Louis FC moved out to the Eastern Conference

2018 (17 teams)

 * Colorado Springs Switchbacks
 * Fresno FC
 * Las Vegas Lights FC
 * LA Galaxy II
 * Oklahoma City Energy
 * Orange County SC
 * Phoenix Rising FC
 * Portland Timbers 2
 * Real Monarchs SLC
 * Reno 1868 FC
 * Rio Grande Valley FC Toros
 * Sacramento Republic
 * Saint Louis FC
 * San Antonio FC
 * Seattle Sounders 2
 * Swope Park Rangers
 * Tulsa Roughnecks

Changes from 2017: Fresno FC and Las Vegas Lights FC were added as expansion franchises; the Vancouver Whitecaps 2 folded; Saint Louis FC moved in from the Western Conference.

2019 (18 teams)

 * Austin Bold FC
 * Colorado Springs Switchbacks
 * El Paso Locomotive FC
 * Fresno FC
 * Las Vegas Lights FC
 * LA Galaxy II
 * New Mexico United
 * Oklahoma City Energy
 * Orange County SC
 * Phoenix Rising FC
 * Portland Timbers 2
 * Real Monarchs SLC
 * Reno 1868 FC
 * Rio Grande Valley FC Toros
 * Sacramento Republic
 * San Antonio FC
 * Tacoma Defiance
 * Tulsa Roughnecks

Changes from 2018: Austin Bold FC, El Paso Locomotive FC and the New Mexico United were added as expansion franchises. ; Saint Louis FC and the Swope Park Rangers moved out to the Eastern Conference; Seattle Sounders FC 2 rebranded as Tacoma Defiance.

Group A (4 teams)

 * Portland Timbers 2
 * Reno 1868 FC
 * Sacramento Republic
 * Tacoma Defiance

Group B (5 teams)

 * Las Vegas Lights FC
 * LA Galaxy II
 * Orange County SC
 * Phoenix Rising FC
 * San Diego Loyal SC

Group C (4 teams)

 * Colorado Springs Switchbacks
 * El Paso Locomotive FC
 * New Mexico United
 * Real Monarchs SLC

Group D (5 teams)

 * Austin Bold FC
 * Oklahoma City Energy
 * Rio Grande Valley FC Toros
 * San Antonio FC
 * FC Tulsa

Changes from 2019: San Diego Loyal SC was added as an expansion franchise; the Tulsa Roughnecks were renamed FC Tulsa; Fresno FC was disbanded. In response to the COVID-19 pandemic the conference was split into four groups. Two groups of four and two groups of five.

Mountain Division

 * Austin Bold FC
 * Colorado Springs Switchbacks
 * El Paso Locomotive FC
 * New Mexico United
 * Real Monarchs SLC
 * Rio Grande Valley FC Toros
 * San Antonio FC

Pacific Division

 * Las Vegas Lights FC
 * LA Galaxy II
 * Oakland Roots SC
 * Orange County SC
 * Phoenix Rising FC
 * Sacramento Republic
 * San Diego Loyal SC
 * Tacoma Defiance

Changes from 2020: The conference was divided into two divisions, Mountain and Pacific; Oakland Roots SC joined in from NISA: the Portland Timbers 2 was withdrawn by the MLS parent club; Reno 1868 FC was disbanded; Oklahoma City Energy and FC Tulsa moved out to the Eastern Conference.

2022 (13 teams)

 * Colorado Springs Switchbacks
 * El Paso Locomotive FC
 * New Mexico United
 * Monterey Bay FC
 * Rio Grande Valley FC Toros
 * Las Vegas Lights FC
 * LA Galaxy II
 * Oakland Roots SC
 * Orange County SC
 * Phoenix Rising FC
 * Sacramento Republic FC
 * San Antonio FC
 * San Diego Loyal SC

Changes from 2021: The Mountain and Pacific divisions were dropped; Monterey Bay FC was added as an expansion franchise; the Real Monarchs and the Tacoma Defiance were withdrawn by their MLS parent clubs and moved to MLS Next Pro; Austin Bold FC went on hiatus; will move to a yet-to-be-named Texas city for the 2023 season.

2023 (12 teams)

 * Colorado Springs Switchbacks
 * El Paso Locomotive FC
 * New Mexico United
 * Monterey Bay FC
 * Rio Grande Valley FC Toros
 * Las Vegas Lights FC
 * Oakland Roots SC
 * Orange County SC
 * Phoenix Rising FC
 * Sacramento Republic FC
 * San Antonio FC
 * San Diego Loyal SC

Changes from 2022: The LA Galaxy II was withdrawn by their MLS parent club and moved to MLS Next Pro;

2024 (12 teams)

 * Colorado Springs Switchbacks
 * El Paso Locomotive FC
 * FC Tulsa
 * New Mexico United
 * Monterey Bay FC
 * Las Vegas Lights FC
 * Memphis 901 FC
 * Oakland Roots SC
 * Orange County SC
 * Phoenix Rising FC
 * Sacramento Republic FC
 * San Antonio FC

Changes from 2023: Rio Grande Valley FC Toros and San Diego Loyal SC folded. FC Tulsa and Memphis 901 FC moved from the Eastern Conference.