The United Soccer League (USL) has organized soccer (association football) competitions for clubs in the United States league system since 1989. It currently organizes its Championship, League One, and League Two for men, and its Super League and W League for women. It previously organized its SOSL / SISL / USISL (1989âÂÂ1994), Pro League / Second Division (1995âÂÂ2010), and Select League / A-League / First Division (1996âÂÂ2010) for men, and its original W-League (1995âÂÂ2015) for women. It also previously organized its I-League (1986âÂÂ1998) and the Major Indoor Soccer League (2011âÂÂ2014), for men's indoor soccer clubs. Over that time, many clubs have participated in USL competitions in professional, semi-professional, proâÂÂam, and amateur capacities.
In the 2025 season, eight clubs fielded teams in the USL Super League, 24 in the USL Championship, fourteen in USL League One, 144 in USL League Two, and 93 in the USL W League. The Charleston Battery, Charlotte Eagles, and Richmond Kickers are the longest-tenured clubs currently playing in the USL, first entering in the 1993 USISL outdoor season. The 92,000-capacity Cotton Bowl, the home ground of Atlético Dallas and Dallas Trinity FC, is the largest venue in the USL.