LA Galaxy II

It was announced on January 29, 2014, that the LA Galaxy of Major League Soccer would be fielding their own team in the USL Pro to serve as their reserve team beginning with the 2014 USL Pro season. The Galaxy chose to create their own team in the league instead of affiliating with a current USL Pro team after the two leagues formed a partnership the previous year. The current assistant coach of the senior squad, Curt Onalfo, would become head coach of the reserve squad. The club would play its home matches at Dignity Health Sports Park's Track & Field Stadium, a 1,200-seat stadium near the main stadium, home to the senior club. Onalfo had led the Galaxy's previous reserve squad to two consecutive MLS Reserve League West Division titles. In the process, the LA Galaxy became the first MLS club to own and operate its own USL Pro side.

About forming the reserve team, Galaxy President Chris Klein said, “The creation of LA Galaxy II, through USL PRO, provides the Galaxy with a fully realized, in-house player development program starting with the Under-12 Academy through the LA Galaxy first team. The investment of AEG and the Galaxy for LA Galaxy II will allow us to continue to develop the best players in Southern California while closing the gap between the Galaxy Academy and the LA Galaxy.”

2014 season

The club's first match took place on February 13, 2014, as they defeated Fresno Fuego of the USL Premier Development League 2–1. Travis Bowen scored the team's first-ever goal. The team made its USL Pro debut on March 22, 2014, defeating the league's other LA club, the Orange County Blues FC, 3–1 at home. Charlie Rugg scored their first goal in USL Pro competition. In the regular season, the Galaxy II earned third place in the league's standings, having a 15–6–7 (W-L-T) record, qualifying for the playoffs. The Galaxy II had faced against the Rochester Rhinos during the quarter finals, who they defeated and advance to face Sacramento Republic FC in the semifinals. The Galaxy II were defeated against Sacramento Republic therefore being eliminated, and ending their inaugural season.

Daniel Steres was named captain, and was named Defender of the Year.

2015 season

Los Dos finished 5th in the Western Conference during the regular season of the newly formatted USL. During the playoffs, The Galaxy II defeated Sacramento Republic in overtime, advancing to face first seeded OKC Energy in the Conference Finals. Los Dos became Conference champions, after defeating OKC Energy, and went on to face Rochester Rhinos in the USL championship. The Galaxy II were defeated in the championship game.

Daniel Steres was again named Defender of the Year.

MLS Next Pro

MLS announced that it would be one of the new eight teams to join MLS Next Pro in 2023.

In March 2024, the team announced a partial relocation to Thousand Oaks, California and rebranded to Ventura County FC.