The 2019 FC Tucson season was the club's eighth season of existence and their first full professional season in USL League One.

They previously played in the Premier Development League (USL League Two as of 2019) and won four divisional titles.

[1][2] Source: Match reports [3] Due to their ownership by a more advanced level professional club, FC Tucson was one of 13 teams expressly forbidden from entering the Cup competition.

[4] As of October 5, 2019 [5]