Eastern Conference:
Atlanta United 2 | Bethlehem Steel FC | Birmingham Legion | Charleston Battery | Charlotte Independence | Hartford Athletic | Indy Eleven | Loudoun United FC | Louisville City FC | Memphis 901 FC | New York Red Bulls II | North Carolina FC | Ottawa Fury FC | Pittsburgh Riverhounds | Saint Louis FC | Swope Park Rangers | Tampa Bay Rowdies
Western Conference:
Austin Bold FC | Colorado Springs Switchbacks | El Paso Locomotive FC | FC Tulsa | Fresno FC | Las Vegas Lights FC | LA Galaxy II | New Mexico United | Oklahoma City Energy FC | Orange County SC | Phoenix Rising FC | Portland Timbers 2 | Real Monarchs | Reno 1868 FC | Rio Grande Valley FC Toros | Sacramento Republic | San Antonio FC | Tacoma Defiance
Future clubs:
Monterey Bay FC | Queensboro FC | Rhode Island FC
Former clubs:
FC Cincinnati | Nashville FC | Penn FC | Richmond Kickers | Toronto FC II
Related:
United Soccer League | USL League 1 | USL League 2
United Soccer Leagues (USL First Division | USL Second Division)
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