B
- Baldwin Park *Not a current member
- Banning
- Barstow
- Beaumont
- Bell
- Bell Gardens
- Bellflower
- Beverly Hills
- Big Bear Lake
- Blythe
- Bradbury
- Brawley
- Brea
- Buena Park
- Burbank
H
- Hawaiian Gardens
- Hawthorne *Not a current member
- Hemet
- Hermosa Beach
- Hesperia
- Hidden Hills
- Highland
- Holtville
- Huntington Beach *Not a current member
- Huntington Park
M
- Malibu
- Manhattan Beach *Not a current member
- Maywood
- Menifee
- Mission Viejo
- Monrovia
- Montclair
- Montebello
- Monterey Park
- Moorpark
- Moreno Valley
- Murrieta
P
- Palm Desert
- Palm Springs
- Palmdale
- Palos Verdes Estates *Not a current member
- Paramount
- Pasadena
- Perris
- Pico Rivera
- Placentia
- Pomona
- Port Hueneme
Subregional Organizations in the SCAG Region
- Arroyo Verdugo Communities Joint Powers Authority
- City of Los Angeles
- Coachella Valley Association of Governments
- Gateway Cities Council of Governments
- Imperial County Transportation Commission
- Las Virgenes Malibu Council of Governments
- North Los Angeles County
- Orange County Council of Governments
- San Bernardino County Transportation Authority / San Bernardino Council of Governments
- San Fernando Valley Council of Governments
- San Gabriel Valley Council of Governments
- South Bay Cities Council of Governments
- Ventura Council of Governments
- Western Riverside Council of Governments
- Westside Cities Council of Governments