- Adelanto, California, CA — 232 chapters
- Agoura Hills, CA — 12 chapters
- Alameda, CA — 27 chapters
- Alameda County, CA — 8 chapters
- Albany, CA — 24 chapters
- Alhambra, California, CA — 353 chapters
- Alturas, CA — 37 chapters
- Amador, CA — 19 chapters
- Anaheim, California, CA — 337 chapters
- Anderson, CA — 16 chapters
- Antioch, California, CA — 138 chapters
- Apple Valley, CA — 12 chapters
- Arcadia, CA — 11 chapters
- Arroyo Grande, CA — 1 chapters
- Artesia, CA — 1 chapters
- Arvin, CA — 20 chapters
- Atwater, CA — 15 chapters
- Avalon, CA — 2 chapters
- Azusa, CA — 51 chapters
- Baldwin Park, California, CA — 158 chapters
- Banning, CA — 17 chapters
- Barstow, CA — 16 chapters
- Bear Valley, California, CA — 54 chapters
- Beaumont, CA — 14 chapters
- Bellflower, CA — 1 chapters
- Belmont, CA — 37 chapters
- Beverly Hills, California, CA — 77 chapters
- Big Bear Lake, CA — 19 chapters
- Bishop, CA — 17 chapters
- Blythe, CA — 17 chapters
- Bradbury, CA — 9 chapters
- Brawley, CA — 60 chapters
- Brisbane, CA — 16 chapters
- Buellton, CA — 17 chapters
- Butte County, CA — 85 chapters
- Calabasas, CA — 13 chapters
- Calaveras County, CA — 20 chapters
- Calexico, CA — 19 chapters
- California, CA — 10 chapters
- Camarillo, CA — 19 chapters
- Cambria Community Services District, CA — 11 chapters
- Campbell, CA — 18 chapters
- Canyon Lake, California, CA — 213 chapters
- Carlsbad, CA — 1 chapters
- Carmel Area Wastewater District, California, CA — 36 chapters
- Carpinteria, CA — 16 chapters
- Central Contra Costa Sanitary District, CA — 13 chapters
- Ceres, CA — 16 chapters
- Chicken Ranch Rancheria Me-Wuk Indians of California, CA — 55 chapters
- Chico, California, CA — 365 chapters
- Chino, CA — 21 chapters
- Chino Hills, CA — 15 chapters
- Chowchilla, CA — 22 chapters
- Citrus Heights, CA — 62 chapters
- Clayton, CA — 18 chapters
- Clovis, CA — 1 chapters
- Coachella, CA — 18 chapters
- Coalinga, CA — 12 chapters
- Colfax, CA — 16 chapters
- Colton, CA — 20 chapters
- Colusa, CA — 42 chapters
- Commerce, CA — 17 chapters
- Compton, CA — 35 chapters
- Contra Costa County, CA — 14 chapters
- Corcoran, California, CA — 98 chapters
- Corning, CA — 20 chapters
- Corona, California, CA — 167 chapters
- Corte Madera, CA — 20 chapters
- Costa Mesa, CA — 1 chapters
- Cucamonga Valley Water District, CA — 11 chapters
- Culver City, California, CA — 131 chapters
- Cypress, CA — 44 chapters
- Daly, CA — 17 chapters
- Danville, California, CA — 26 chapters
- Davis, CA — 45 chapters
- Del Mar, CA — 19 chapters
- Del Rey Oaks, CA — 17 chapters
- Delano, CA — 20 chapters
- Diamond Bar, CA — 23 chapters
- Duarte, CA — 10 chapters
- Dunsmuir, CA — 21 chapters
- East Bay Regional Park District, CA — 11 chapters
- East Palo Alto, CA — 17 chapters
- Eastvale, CA — 25 chapters
- El Centro, CA — 32 chapters
- El Cerrito, CA — 20 chapters
- El Dorado County, CA — 25 chapters
- El Monte, CA — 19 chapters
- El Paso de Robles, CA — 21 chapters
- El Segundo, California, CA — 195 chapters
- Encinitas, CA — 1 chapters
- Escondido, CA — 41 chapters
- Eureka, California, CA — 97 chapters
- Exeter, CA — 19 chapters
- Fairfax, California, CA — 260 chapters
- Farmersville, CA — 18 chapters
- Fillmore, CA — 15 chapters
- Firebaugh, CA — 36 chapters
- Fontana, CA — 33 chapters
- Fort Jones, CA — 14 chapters
- Fowler, CA — 9 chapters
- Fresno, CA — 18 chapters
- Fresno County, CA — 20 chapters
- Fullerton, California, CA — 254 chapters
- Gilroy, CA — 67 chapters
- Glendora, CA — 1 chapters
- Goleta, CA — 1 chapters
- Grand Terrace, CA — 17 chapters
- Grass Valley, CA — 16 chapters
- Gridley, California, CA — 185 chapters
- Grover Beach, California, CA — 56 chapters
- Gustine, CA — 12 chapters
- Habematolel Pomo of Upper Lake, CA — 12 chapters
- Hawaiian Gardens, CA — 15 chapters
- Hawthorne, CA — 18 chapters
- Hayward, CA — 14 chapters
- Hemet, CA — 50 chapters
- Hesperia, CA — 18 chapters
- Hidden Hills, CA — 8 chapters
- Hillsborough, CA — 18 chapters
- Hollister, CA — 16 chapters
- Huron, CA — 16 chapters
- Imperial County, CA — 16 chapters
- Inglewood, CA — 16 chapters
- Ione, CA — 17 chapters
- Irvine, CA — 9 chapters
- Irwindale, CA — 17 chapters
- Isleton, CA — 13 chapters
- Jackson, CA — 14 chapters
- Jurupa Valley, CA — 15 chapters
- Kern County, CA — 21 chapters
- Kings County, CA — 30 chapters
- Kingsburg, CA — 18 chapters
- LA County - BOS, CA — 13 chapters
- La Habra, CA — 3 chapters
- La Mesa, CA — 24 chapters
- La Mirada, California, CA — 215 chapters
- La Palma, CA — 23 chapters
- La Puente, California, CA — 184 chapters
- La Quinta, CA — 16 chapters
- Lafayette, CA — 13 chapters
- Laguna Beach, CA — 1 chapters
- Laguna Niguel, CA — 13 chapters
- Laguna Woods, CA — 13 chapters
- Lake County, CA — 39 chapters
- Lakewood, CA — 1 chapters
- Lancaster, CA — 19 chapters
- Las Virgenes Municipal Water District, CA — 1 chapters
- Lemoore, California, CA — 101 chapters
- Lincoln, CA — 17 chapters
- Livermore, CA — 1 chapters
- Livingston, California, CA — 124 chapters
- Lodi, CA — 15 chapters
- Lomita, CA — 15 chapters
- Long Beach, CA — 25 chapters
- Los Altos, CA — 18 chapters
- Los Angeles County, CA — 31 chapters
- Los Angeles County Metropolitan Transportation Authority, California, CA — 41 chapters
- Los Angeles, California, CA — 697 chapters
- Los Banos, CA — 1 chapters
- Los Gatos, CA — 31 chapters
- Madera County, CA — 21 chapters
- Madera, California, CA — 113 chapters
- Malibu, CA — 20 chapters
- Mammoth Lakes , CA — 18 chapters
- Manhattan Beach, CA — 16 chapters
- Marin County, CA — 23 chapters
- Marina Coast Water District, CA — 16 chapters
- Maywood, CA — 15 chapters
- McFarland, CA — 17 chapters
- Mendocino County, CA — 27 chapters
- Mendota, CA — 17 chapters
- Menifee, California, CA — 120 chapters
- Merced, CA — 20 chapters
- Milpitas, CA — 14 chapters
- Mission Viejo, CA — 15 chapters
- Modesto, CA — 17 chapters
- Modoc County, CA — 19 chapters
- Mono County, CA — 19 chapters
- Monrovia, California, CA — 239 chapters
- Montclair, CA — 16 chapters
- Monte Sereno, CA — 15 chapters
- Montebello, CA — 17 chapters
- Monterey County, CA — 19 chapters
- Moraga, CA — 22 chapters
- Morgan Hill, CA — 16 chapters
- Morro Bay, CA — 19 chapters
- Mountain House, CA — 11 chapters
- Mountain View, CA — 52 chapters
- Murrieta, California, CA — 162 chapters
- Napa County, CA — 18 chapters
- National, CA — 20 chapters
- Nevada, CA — 16 chapters
- Nevada County, CA — 23 chapters
- Newark, CA — 20 chapters
- Nipomo Community Service District Code, CA — 11 chapters
- Norwalk, CA — 17 chapters
- Novato, CA — 23 chapters
- Oakdale, CA — 39 chapters
- Oakland, CA — 21 chapters
- Oceanside, CA — 63 chapters
- Ojai, CA — 1 chapters
- Ontario, California, CA — 159 chapters
- Orange, CA — 2 chapters
- Orange County, CA — 11 chapters
- Orange Cove, CA — 19 chapters
- Orinda, CA — 19 chapters
- Orland, CA — 17 chapters
- Oxnard, California, CA — 32 chapters
- Pacifica, CA — 14 chapters
- Palm Desert, CA — 26 chapters
- Palm Springs, CA — 4 chapters
- Palo Alto, California, CA — 305 chapters
- Paradise, CA — 16 chapters
- Parlier, CA — 17 chapters
- Pasadena, CA — 18 chapters
- Perris, CA — 22 chapters
- Pinole, California, CA — 287 chapters
- Pismo Beach, California, CA — 531 chapters
- Placer County, CA — 20 chapters
- Placerville, California, CA — 169 chapters
- Plumas County, CA — 11 chapters
- Pomona, CA — 5 chapters
- Port Hueneme, CA — 12 chapters
- Port of Oakland, CA — 19 chapters
- Porterville, California, CA — 36 chapters
- Portola, CA — 18 chapters
- Portola Valley, CA — 16 chapters
- Rancho Palos Verdes, CA — 14 chapters
- Rancho Santa Margarita, CA — 13 chapters
- Red Bluff, California, CA — 40 chapters
- Redding, CA — 17 chapters
- Redlands, California, CA — 344 chapters
- Redondo Beach, CA — 1 chapters
- Redwood, CA — 57 chapters
- Reedley, California, CA — 131 chapters
- Rialto, CA — 19 chapters
- Richmond, CA — 19 chapters
- Ridgecrest, CA — 3 chapters
- Riverbank, California, CA — 10 chapters
- Riverside, CA — 23 chapters
- Riverside County, CA — 16 chapters
- Rocklin, CA — 15 chapters
- Rohnert Park, CA — 15 chapters
- Rolling Hills, CA — 15 chapters
- Rolling Hills Estates, CA — 16 chapters
- Rosemead, CA — 16 chapters
- Sacramento County, CA — 1 chapters
- Sacramento, California, CA — 482 chapters
- Salinas, CA — 55 chapters
- San Anselmo, CA — 17 chapters
- San Benito County Water District, CA — 9 chapters
- San Benito County, California, CA — 236 chapters
- San Bernardino County, California, CA — 471 chapters
- San Bernardino, California, CA — 350 chapters
- San Clemente, CA — 10 chapters
- San Diego County, California, CA — 466 chapters
- San Fernando, CA — 56 chapters
- San Francisco Bay Area Rapid Transit District (BART), CA — 12 chapters
- San Francisco, California, CA — 193 chapters
- San Gabriel, California, CA — 71 chapters
- San Joaquin County, CA — 10 chapters
- San Joaquin, California, CA — 62 chapters
- San Jose, CA — 29 chapters
- San Juan Capistrano, CA — 1 chapters
- San Luis Obispo County, CA — 32 chapters
- San Marcos, CA — 21 chapters
- San Marino, California, CA — 192 chapters
- San Mateo County, CA — 11 chapters
- San Rafael, CA — 23 chapters
- Sanger, CA — 50 chapters
- Santa Ana, CA — 40 chapters
- Santa Barbara County, CA — 95 chapters
- Santa Clara County, CA — 5 chapters
- Santa Clarita, CA — 1 chapters
- Santa Fe Springs, CA — 8 chapters
- Santa Paula, California, CA — 176 chapters
- Saratoga, CA — 19 chapters
- Scotts Valley, CA — 18 chapters
- Selma, California, CA — 172 chapters
- Shafter, CA — 17 chapters
- Shasta County, CA — 19 chapters
- Shasta Lake, CA — 16 chapters
- Sierra Madre, CA — 17 chapters
- Signal Hill, California, CA — 274 chapters
- Simi Valley, CA — 13 chapters
- Siskiyou County, CA — 13 chapters
- Soledad, CA — 17 chapters
- Sonoma County, CA — 64 chapters
- Sonora, CA — 18 chapters
- Suisun, CA — 19 chapters
- Sunnyvale, CA — 21 chapters
- Sutter County, CA — 19 chapters
- Sutter Creek, CA — 15 chapters
- Taft, California, CA — 156 chapters
- Tehachapi, CA — 1 chapters
- Tehama, CA — 16 chapters
- Tehama County, CA — 16 chapters
- Temple City, California, CA — 85 chapters
- Templeton Community Service District, CA — 8 chapters
- Thousand Oaks, California, CA — 214 chapters
- Tiburon, CA — 9 chapters
- Tracy, CA — 16 chapters
- Trinity County, CA — 21 chapters
- Truckee, CA — 15 chapters
- Tulare, California, CA — 246 chapters
- Tustin, CA — 12 chapters
- Twentynine Palms, CA — 25 chapters
- Vallejo, CA — 16 chapters
- Vallejo Flood and Wastewater District, CA — 10 chapters
- Ventura County, CA — 16 chapters
- Victorville, CA — 18 chapters
- Villa Park, CA — 27 chapters
- Visalia, California, CA — 215 chapters
- Walnut Creek, CA — 5 chapters
- Waterford, CA — 17 chapters
- Weed, CA — 17 chapters
- West Covina, CA — 28 chapters
- West Sacramento, CA — 2 chapters
- Westlake, CA — 12 chapters
- Whittier, CA — 18 chapters
- Williams, CA — 16 chapters
- Willits, CA — 18 chapters
- Windsor, CA — 19 chapters
- Woodlake, CA — 15 chapters
- Woodside, CA — 10 chapters
- Yolo County, California, CA — 139 chapters
- Yountville, CA — 15 chapters
- Yreka, CA — 19 chapters
- Yuba, CA — 11 chapters
- Yuba County, CA — 13 chapters
- Yucca Valley, California, CA — 158 chapters