Charter members (and years of membership) included California State-Los Angeles (1969-1974), Fresno State (1969-1988), Long Beach State (1969-1988), Pacific (1969-1988), San Diego State (1969-1976), San Jose State (1969-1988), and California-Santa Barbara (1969-1972).
Other former members (and years of membership) include California State-Fullerton (1974-1988), Nevada-Las Vegas (1982-1988), and New Mexico State (1983-1988).
Current conference affiliations (for football) of former members