In 2019,
Dana Hills High School and
Laguna Hills High School announced their re-league. After votes failed, the two schools re-leagued into the Pacific Coast Conference. The Pacific Coast Conference became an 8-team conference for the first time in 2019.
Sage Hill School joined the Pacific Coast Conference in the 2022-2023 academic year. As part of the 2024-2026 league re-alignment cycle,
Beckman High School and
Laguna Hills High School left the Pacific Coast Conference, with Beckman joining the
Coast View Athletic Association and Laguna Hills joining the Golden Empire Conference. In that same re-alignment cycle,
Laguna Beach High School,
St Margaret's Episcopal School, and
Rosary Academy (girls sports only) joined the Pacific Coast Conference, expanding the conference into 9 teams for girls sports and 8 teams for boys sports. ==Schools==