List of places in California (C)
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| Name of place | Number of counties | Principal county | Lower zip code | Upper zip code |
| Cabazon | 1 | Riverside County | 92230 | |
| Cabazon Indian Reservation | 1 | Riverside County | 92201 | |
| Cabernet | 1 | Kern County | ||
| Cabezon Indian Reservation | 1 | Riverside County | 92201 | |
| Cabin Cove | 1 | Tulare County | ||
| Cable | 1 | Kern County | ||
| Cabrillo | 1 | Los Angeles County | 90810 | |
| Cabrillo Estates | 1 | San Luis Obispo County | 93401 | |
| Cabrillo National Monument | 1 | San Diego County | 92106 | |
| Cache Creek | 1 | Kern County | 93501 | |
| Cachil Dehe Rancheria | 1 | Colusa County | ||
| Cachuma | 1 | Santa Barbara County | 93101 | |
| Cachuma Village | 1 | Santa Barbara County | 93101 | |
| Cactus | 1 | Imperial County | ||
| Cactus City | 1 | Riverside County | ||
| Cadenasso | 1 | Yolo County | ||
| Cadiz | 1 | San Bernardino County | 92319 | |
| Cadwell | 1 | Sonoma County | ||
| Cahuilla | 1 | Riverside County | 92306 | |
| Cahuilla Estates | 1 | Riverside County | 92306 | |
| Cahuilla Hills | 1 | Riverside County | 92260 | |
| Cahuilla Indian Reservation | 1 | Riverside County | 92263 | |
| Cain Rock | 1 | Humboldt County | ||
| Cairns | 1 | Tulare County | ||
| Cairns Corner | 1 | Tulare County | 93247 | |
| Cajon | 1 | San Bernardino County | ||
| Cajon Junction | 1 | San Bernardino County | 92407 | |
| Calabasas | 1 | Los Angeles County | 91302 | |
| Calabasas Highlands | 1 | Los Angeles County | 91364 | |
| Calabasas Hills | 1 | Los Angeles County | 91301 | |
| Calabasas Park | 1 | Los Angeles County | 91364 | |
| Calada | 1 | San Bernardino County | ||
| Calaveras | 1 | San Joaquin County | 95207 | |
| Calaveras Yacht and Country Club Estates | 1 | San Joaquin County | 95204 | |
| Calaveritas | 1 | Calaveras County | 95249 | |
| Calavo Gardens | 1 | San Diego County | 92041 | |
| Caldor | 1 | El Dorado County | ||
| Caldors Corner | 1 | Kern County | 93312 | |
| Caldwell Pines | 1 | Lake County | ||
| Calexico | 1 | Imperial County | 92231 | |
| Calexico Lodge | 1 | San Diego County | ||
| Calflax | 1 | Fresno County | ||
| Calgro | 1 | Tulare County | ||
| Calico | 1 | Kern County | ||
| Calico | 1 | San Bernardino County | 92398 | |
| Cal-Ida | 1 | Sierra County | ||
| Caliente | 1 | Kern County | 93518 | |
| California City | 1 | Kern County | 93505 | |
| California Conservation Center | 1 | Lassen County | 96130 | |
| California Correctional Institute | 1 | Kern County | 93561 | |
| California Heights | 1 | Los Angeles County | ||
| California Hot Springs | 1 | Tulare County | 93207 | |
| California Institute of Technology | 1 | Los Angeles County | 91125 | |
| California Rehabilitation Center | 1 | Riverside County | 91720 | |
| California State University, Dominguez Hills | 1 | Los Angeles County | 90747 | |
| California State University, Long Beach | 1 | Los Angeles County | 90840 | |
| California State University, Northridge | 1 | Los Angeles County | 91330 | |
| California Valley | 1 | San Luis Obispo County | 93453 | |
| Calimesa | 1 | Riverside County | 92320 | |
| Calipatria | 1 | Imperial County | 92233 | |
| Calistoga | 1 | Napa County | 94515 | |
| Calla | 1 | San Joaquin County | ||
| Calla | 1 | San Joaquin County | 95336 | |
| Callahan | 1 | Siskiyou County | 96014 | |
| Callender | 1 | San Luis Obispo County | ||
| Calneva | 1 | Lassen County | ||
| Calpack | 1 | Merced County | 95340 | |
| Calpella | 1 | Mendocino County | 95418 | |
| Calpine | 1 | Sierra County | 96124 | |
| Calville | 1 | Humboldt County | 95521 | |
| Calwa | 1 | Fresno County | 93725 | |
| Calzona | 1 | San Bernardino County | ||
| Camanche | 1 | Calaveras County | ||
| Camanche Lake | 1 | Amador County | 95640 | |
| Camarillo | 1 | Ventura County | 93010 | |
| Camarillo Heights | 1 | Ventura County | 93010 | |
| Cambria | 1 | San Luis Obispo County | 93428 | |
| Cambria Air Force Station | 1 | San Luis Obispo County | 93428 | |
| Cambrian Park | 1 | Santa Clara County | 95124 | |
| Cambrian Village | 1 | Santa Clara County | ||
| Cambria Pines | 1 | San Luis Obispo County | 93428 | |
| Cambria Pines Manor | 1 | San Luis Obispo County | 93428 | |
| Camden | 1 | Fresno County | 93242 | |
| Camellia | 1 | Sacramento County | 94819 | |
| Camellia Station | 1 | Sacramento County | 94819 | |
| Cameo | 1 | Fresno County | ||
| Cameo Acres | 1 | Contra Costa County | 94526 | |
| Cameron | 1 | Kern County | ||
| Cameron | 1 | Mendocino County | ||
| Cameron Corners | 1 | San Diego County | 92006 | |
| Cameron Creek Colony | 1 | Tulare County | 93291 | |
| Cameron Park | 1 | El Dorado County | 95682 | |
| Camino | 1 | El Dorado County | 95709 | |
| Camino Alta | 1 | Santa Clara County | ||
| Camino Heights | 1 | El Dorado County | 95709 | |
| Campana | 1 | El Dorado County | ||
| Camp Angelus | 1 | San Bernardino County | ||
| Camp Bartlett | 1 | Ventura County | ||
| Campbell | 1 | Santa Clara County | 95008 | |
| Campbell Hot Springs | 1 | Sierra County | ||
| Campbellville | 1 | Tehama County | ||
| Camp Connell | 1 | Calaveras County | 95223 | |
| Camp Earnest | 1 | Tuolumne County | ||
| Camp Eighteen | 1 | Butte County | ||
| Camp Evers | 1 | Santa Cruz County | ||
| Camphora | 1 | Monterey County | ||
| Camp Irwin | 1 | San Bernardino County | ||
| Camp Kaweah | 1 | Tulare County | 93262 | |
| Camp Meeker | 1 | Sonoma County | 95419 | |
| Camp Mendocino | 1 | Mendocino County | ||
| Camp Nelson | 1 | Tulare County | 93208 | |
| Campo | 1 | San Diego County | 91906 | |
| Campo Indian Reservation | 1 | San Diego County | 92006 | |
| Campo Seco | 1 | Calaveras County | 95226 | |
| Camp Owens | 1 | Kern County | ||
| Camp Pardee | 1 | Calaveras County | ||
| Camp Parks | 1 | Alameda County | 94501 | |
| Camp Pendleton | 1 | San Diego County | 92055 | |
| Camp Pendleton Naval Regional Medical Center | 1 | San Diego County | 92055 | |
| Camp Pendleton North | 1 | San Diego County | ||
| Camp Pendleton South | 1 | San Diego County | ||
| Camp Pendola | 1 | Tuolumne County | ||
| Camp Rest | 1 | Mendocino County | ||
| Camp Richardson | 1 | El Dorado County | 96156 | |
| Camp Rodgers | 1 | Plumas County | ||
| Camp Rose | 1 | Sonoma County | ||
| Camp Sabrina | 1 | Inyo County | 93514 | |
| Camp Sierra | 1 | Fresno County | 93664 | |
| Camp Spaulding | 1 | Nevada County | ||
| Camp Tamarack | 1 | Calaveras County | ||
| Campton Heights | 1 | Humboldt County | 95540 | |
| Camptonville | 1 | Yuba County | 95922 | |
| Camp Wishon | 1 | Tulare County | 93265 | |
| Camulos | 1 | Ventura County | 93040 | |
| Canby | 1 | Modoc County | 96015 | |
| Canby Cross | 1 | Siskiyou County | ||
| Canebrake | 1 | Kern County | ||
| Canet | 1 | Ventura County | ||
| Cannery Row | 1 | Monterey County | ||
| Cannon | 1 | Solano County | ||
| Canoga Annex | 1 | Los Angeles County | 91304 | |
| Canoga Park | 1 | Los Angeles County | 91303 | 09 |
| Cantil | 1 | Kern County | 93519 | |
| Cantrall Mill | 1 | Modoc County | ||
| Cantua Creek | 1 | Fresno County | 93608 | |
| Canyon | 1 | Alameda County | 94516 | |
| Canyon Acres | 1 | Orange County | ||
| Canyon City | 1 | San Diego County | 92006 | |
| Canyon Country | 1 | Los Angeles County | 91351 | |
| Canyon Crest | 1 | Riverside County | 92507 | |
| Canyon Crest Heights | 1 | Riverside County | ||
| Canyondam | 1 | Plumas County | 95923 | |
| Canyon Lake | 1 | Riverside County | 92587 | |
| Capay | 1 | Glenn County | ||
| Capay | 1 | Yolo County | 95607 | |
| Cape Horn | 1 | Alpine County | ||
| Cape Horn | 1 | Placer County | 95713 | |
| Capetown | 1 | Humboldt County | 95536 | |
| Capistrano Beach | 1 | Orange County | 92524 | |
| Capistrano Highlands | 1 | Orange County | 92653 | |
| Capital Hill | 1 | San Luis Obispo County | 93446 | |
| Capitan | 1 | Santa Barbara County | ||
| Capitan Grande Indian Reservation | 1 | San Diego County | 92001 | |
| Capitola | 1 | Santa Cruz County | 95010 | |
| Car A | 1 | Siskiyou County | ||
| Carbona | 1 | San Joaquin County | 95376 | |
| Carbon Canyon | 1 | San Bernardino County | 91710 | |
| Carbondale | 1 | Amador County | 95640 | |
| Cardiff | 1 | San Diego County | ||
| Cardiff By The Sea | 1 | San Diego County | 92007 | |
| Cardiff-by-the-Sea | 1 | San Diego County | ||
| Cardwell | 1 | Fresno County | 93704 | |
| Caribou | 1 | Plumas County | 95915 | |
| Carlotta | 1 | Humboldt County | 95528 | |
| Carlsbad | 1 | San Diego County | 92008 | |
| Carlton | 1 | Imperial County | ||
| Carlton | 1 | Orange County | 92688 | |
| Carlton Hills | 1 | San Diego County | ||
| Carmel | 1 | Monterey County | 93921 | |
| Carmel-by-the-Sea | 1 | Monterey County | 93921 | |
| Carmel Highlands | 1 | Monterey County | 93923 | |
| Carmel Hills | 1 | Monterey County | 93921 | |
| Carmel Point | 1 | Monterey County | 93921 | |
| Carmel Valley | 1 | Monterey County | 93924 | |
| Carmel Valley Village | 1 | Monterey County | 93924 | |
| Carmel Woods | 1 | Monterey County | 93921 | |
| Carmen City | 1 | Calaveras County | ||
| Carmenita | 1 | Los Angeles County | 90670 | |
| Carmet | 1 | Sonoma County | 94923 | |
| Carmichael | 1 | Sacramento County | 95608 | |
| Carnadero | 1 | Santa Clara County | ||
| Carnelian Bay | 1 | Placer County | 96140 | |
| Carpenter | 1 | Alameda County | ||
| Carpinteria | 1 | Santa Barbara County | 93013 | |
| Carquinez Heights | 1 | Solano County | 94590 | |
| Carr | 1 | Santa Barbara County | ||
| Carrick | 1 | Siskiyou County | ||
| Carrick Addition | 1 | Siskiyou County | 96094 | |
| Carriso Gorge | 1 | San Diego County | ||
| Carrolton | 1 | San Joaquin County | ||
| Carrville | 1 | Trinity County | ||
| Carson | 1 | Los Angeles County | 90745 | |
| Carson | 1 | Los Angeles County | ||
| Carson Hill | 1 | Calaveras County | 95222 | |
| Cartago | 1 | Inyo County | 93549 | |
| Caruthers | 1 | Fresno County | 93609 | |
| Carvin Creek Homesites | 1 | Sierra County | ||
| Casa Blanca | 1 | Riverside County | 92504 | |
| Casa Conejo | 1 | Ventura County | 91360 | |
| Casa Correo | 1 | Contra Costa County | 94521 | |
| Casa de Oro | 1 | San Diego County | 91977 | |
| Casa de Oro-Mount Helix | 1 | San Diego County | ||
| Casa Loma | 1 | Placer County | 95704 | |
| Cascade | 1 | Plumas County | ||
| Casey Corner | 1 | Nevada County | ||
| Casino | 1 | Santa Cruz County | ||
| Casitas Springs | 1 | Ventura County | 93001 | |
| Casmalia | 1 | Santa Barbara County | 93429 | |
| Caspar | 1 | Mendocino County | 95420 | |
| Cassel | 1 | Shasta County | 96016 | |
| Castaic | 1 | Los Angeles County | 91350 | |
| Castaic Junction | 1 | Los Angeles County | ||
| Castella | 1 | Shasta County | 96017 | |
| Castellammare | 1 | Los Angeles County | 90272 | |
| Castle | 1 | Merced County | ||
| Castle | 1 | San Joaquin County | ||
| Castle Air Force Base | 1 | Merced County | 95342 | |
| Castle Crag | 1 | Shasta County | ||
| Castle Garden | 1 | Merced County | 95342 | |
| Castle Park | 1 | San Diego County | 92011 | |
| Castle Park-Otay | 1 | San Diego County | ||
| Castle Rock Springs | 1 | Lake County | ||
| Castlewood | 1 | Alameda County | 94568 | |
| Castro City | 1 | Santa Clara County | ||
| Castro Valley | 1 | Alameda County | 94546 | |
| Castroville | 1 | Monterey County | 95012 | |
| Casty | 1 | Fresno County | ||
| Caswell | 1 | Los Angeles County | ||
| Catalina | 1 | Los Angeles County | 90704 | |
| Cathay | 1 | Mariposa County | ||
| Cathedral City | 1 | Riverside County | 92234 | |
| Catheys Valley | 1 | Mariposa County | 95306 | |
| Catlett | 1 | Sutter County | ||
| Cave City | 1 | Calaveras County | ||
| Cavin | 1 | Ventura County | ||
| Cawelo | 1 | Kern County | 93306 | |
| Cayley | 1 | Alameda County | ||
| Cayton | 1 | Shasta County | 96013 | |
| Cayucos | 1 | San Luis Obispo County | 93430 | |
| Cazadero | 1 | Sonoma County | 95421 | |
| Cecile | 1 | Fresno County | ||
| Cecilville | 1 | Siskiyou County | 96027 | |
| Cedar | 1 | Los Angeles County | 93243 | |
| Cedarbrook | 1 | Fresno County | 93641 | |
| Cedar Crest | 1 | Fresno County | 93605 | |
| Cedar Flat | 1 | Placer County | 96140 | |
| Cedar Glen | 1 | San Bernardino County | 92321 | |
| Cedar Grove | 1 | El Dorado County | 95709 | |
| Cedar Grove | 1 | Fresno County | 93633 | |
| Cedar Mill | 1 | Plumas County | ||
| Cedarpines Park | 1 | San Bernardino County | 92322 | |
| Cedar Ridge | 1 | Nevada County | 95924 | |
| Cedar Ridge | 1 | Tuolumne County | 95370 | |
| Cedar Rock Lodge | 1 | Tuolumne County | ||
| Cedar Slope | 1 | Tulare County | 93265 | |
| Cedar Springs | 1 | Los Angeles County | ||
| Cedarville | 1 | Modoc County | 96104 | |
| Cedarville Rancheria | 1 | Modoc County | 95825 | |
| Cella | 1 | Fresno County | ||
| Ceneda | 1 | Kern County | ||
| Centerville | 1 | Alameda County | ||
| Centerville | 1 | Alameda County | ||
| Centerville | 1 | Butte County | ||
| Centerville | 1 | Fresno County | 93657 | |
| Centerville | 1 | Shasta County | ||
| Centerville Beach Naval Facility | 1 | Humboldt County | 95536 | |
| Centerville District | 1 | Alameda County | ||
| Centinela | 1 | Los Angeles County | ||
| Central | 1 | Yolo County | ||
| Central Camp | 1 | Madera County | ||
| Central District | 1 | Los Angeles County | 91766 | |
| Centralia | 1 | Sacramento County | ||
| Central Valley | 1 | Shasta County | 96019 | |
| Centre | 1 | Sacramento County | 95860 | |
| Century City | 1 | Los Angeles County | 90067 | |
| Ceres | 1 | Stanislaus County | 95307 | |
| Cerritos | 1 | Los Angeles County | 90703 | |
| Cerro | 1 | Marin County | ||
| Cerro Villa Heights | 1 | Orange County | ||
| Chabot Terrace | 1 | Solano County | ||
| Chadbourne | 1 | Solano County | ||
| Chaffee | 1 | Kern County | ||
| Chalfant | 1 | Mono County | 93514 | |
| Challenge | 1 | Yuba County | 95925 | |
| Challenge-Brownsville | 1 | Yuba County | ||
| Chambers Lodge | 1 | Placer County | 95718 | |
| Chambless | 1 | San Bernardino County | 92319 | |
| Champagne | 1 | San Bernardino County | ||
| Champagne Fountain | 1 | Santa Clara County | 95070 | |
| Chaney Ranch | 1 | Fresno County | ||
| Channel Islands | 1 | Ventura County | 93030 | |
| Channel Islands Beach | 1 | Ventura County | ||
| Channel Islands National Park | 3 | Los Angeles County | 93030 | |
| Channel Islands National Park | 3 | Santa Barbara County | 93030 | |
| Channel Islands National Park | 3 | Ventura County | 93030 | |
| Chapman | 1 | Los Angeles County | ||
| Chapmantown | 1 | Butte County | 95926 | |
| Chapman Woods | 1 | Los Angeles County | 91107 | |
| Chappo | 1 | San Diego County | 92055 | |
| Charter Oak | 1 | Los Angeles County | 91724 | |
| Chase | 1 | San Bernardino County | ||
| Chatsworth | 1 | Los Angeles County | 91311 | |
| Chatsworth Lake Manor | 1 | Los Angeles County | 91311 | |
| Chawanakee | 1 | Fresno County | 93602 | |
| Cheeseville | 1 | Siskiyou County | ||
| Chemehuevi Indian Reservation | 1 | San Bernardino County | 92363 | |
| Chemeketa Park | 1 | Santa Clara County | 95030 | |
| Chemeketa Park-Redwood Estates | 1 | Santa Clara County | ||
| Chemurgic | 1 | Stanislaus County | ||
| Cherokee | 1 | Butte County | 95965 | |
| Cherokee | 1 | Nevada County | 95959 | |
| Cherokee | 1 | San Joaquin County | ||
| Cherokee | 1 | Tuolumne County | ||
| Cherokee Strip | 1 | Kern County | 93263 | |
| Cherry Creek Acres | 1 | Nevada County | 95603 | |
| Cherryland | 1 | Alameda County | 94541 | |
| Cherry Valley | 1 | Riverside County | 92223 | |
| Chester | 1 | Plumas County | 96020 | |
| Chesterton | 1 | San Diego County | ||
| Chestnut | 1 | San Mateo County | 94080 | |
| Chestnut Junction | 1 | Alameda County | ||
| Chianti | 1 | Sonoma County | ||
| Chicago Park | 1 | Nevada County | 95712 | |
| Chicken Ranch Rancheria | 1 | Tuolumne County | ||
| Chico | 1 | Butte County | 95926 | |
| Chico North | 1 | Butte County | 95926 | |
| Chico Vecino | 1 | Butte County | 95926 | |
| Chico West | 1 | Butte County | ||
| Chilcoot | 1 | Plumas County | 96105 | |
| Chilcoot-Vinton | 1 | Plumas County | ||
| Childrens Fairyland | 1 | Alameda County | 94610 | |
| Childs Meadows | 1 | Tehama County | 96063 | |
| Chiles | 1 | Yolo County | ||
| China | 1 | San Francisco County | 94121 | |
| China Lake | 3 | Inyo County | 93555 | |
| China Lake | 3 | Kern County | 93555 | |
| China Lake | 3 | San Bernardino County | 93555 | |
| China Lake Acres | 1 | Kern County | ||
| Chinatown | 1 | San Francisco County | 94108 | |
| Chinese | 1 | Tuolumne County | ||
| Chinese Camp | 1 | Tuolumne County | 95309 | |
| Chino | 1 | San Bernardino County | 91708 | 10 |
| Chino Hills | 1 | San Bernardino County | 91709 | |
| Chinowths Corner | 1 | Tulare County | 93291 | |
| Chipps | 1 | Solano County | ||
| Chiquita | 1 | Sonoma County | ||
| Chiriaco Summit | 1 | Riverside County | 92201 | |
| Chittenden | 1 | Santa Cruz County | 95045 | |
| Chloride City | 1 | Inyo County | ||
| Cholame | 1 | San Luis Obispo County | 93431 | |
| Chorro | 1 | San Luis Obispo County | ||
| Chowchilla | 1 | Madera County | 93610 | |
| Chrisman | 1 | Ventura County | ||
| Christie | 1 | Contra Costa County | ||
| Christie Spur | 1 | Humboldt County | ||
| Chrome | 1 | Glenn County | 95963 | |
| Chualar | 1 | Monterey County | 93925 | |
| Chubbuck | 1 | San Bernardino County | ||
| Chula Vista | 1 | San Diego County | 91909 | 15 |
| Chula Vista Junction | 1 | San Diego County | ||
| Church of God Colony | 1 | Fresno County | 93648 | |
| Cienega | 1 | Los Angeles County | ||
| Cima | 1 | San Bernardino County | 92323 | |
| Cimarron | 1 | Kings County | ||
| Cinco | 1 | Kern County | ||
| Cincotta | 1 | Fresno County | ||
| Circle Oaks | 1 | Napa County | ||
| Cisco | 1 | Placer County | 95728 | |
| Cisco Grove | 1 | Placer County | ||
| Citro | 1 | Tulare County | ||
| Citro Junction | 1 | Tulare County | ||
| Citrona | 1 | Yolo County | ||
| Citrus | 1 | Los Angeles County | ||
| Citrus | 1 | Sacramento County | ||
| Citrus Heights | 1 | Sacramento County | 95610 | 21 |
| City Hall | 1 | San Francisco County | 94102 | |
| City of Commerce | 1 | Los Angeles County | 90022 | |
| City of Industry | 1 | Los Angeles County | 91715 | |
| City Ranch | 1 | Los Angeles County | 93551 | |
| City Terrace | 1 | Los Angeles County | 90063 | |
| Civic Center | 1 | Fresno County | 93721 | |
| Civic Center | 1 | Los Angeles County | 91401 | |
| Civic Center | 1 | Marin County | 94903 | |
| Civic Center | 1 | Orange County | 90633 | |
| Civic Center | 1 | Orange County | 92701 | |
| Civic Center Annex | 1 | Alameda County | 94612 | |
| Clairemont | 1 | San Diego County | ||
| Clam Beach | 1 | Humboldt County | 95521 | |
| Claraville | 1 | Kern County | ||
| Clare Mill | 1 | Mendocino County | ||
| Claremont | 1 | Los Angeles County | 91711 | |
| Claribel | 1 | Stanislaus County | ||
| Clarksburg | 1 | Yolo County | 95612 | |
| Clarksona | 1 | Amador County | ||
| Clarksville | 1 | El Dorado County | 95682 | |
| Clarsona | 1 | Amador County | ||
| Claus | 1 | Stanislaus County | ||
| Claussenius | 1 | El Dorado County | ||
| Clay | 1 | Sacramento County | 95638 | |
| Clay Number One | 1 | Amador County | ||
| Clayton | 1 | Contra Costa County | 94517 | |
| Clayton | 1 | Placer County | ||
| Clear Creek | 1 | Lassen County | 96137 | |
| Clear Creek | 1 | Siskiyou County | 96039 | |
| Clear Creek Junction | 1 | Plumas County | ||
| Clearing House | 1 | Mariposa County | ||
| Clearlake | 1 | Lake County | 95422 | |
| Clearlake Highlands | 1 | Lake County | 95422 | |
| Clearlake Highlands-Clearlake Park | 1 | Lake County | ||
| Clearlake Oaks | 1 | Lake County | 95423 | |
| Clearlake Park | 1 | Lake County | 95424 | |
| Clement Junction | 1 | Los Angeles County | ||
| Clements | 1 | San Joaquin County | 95227 | |
| Cleone | 1 | Mendocino County | 95437 | |
| Cliff Haven | 1 | Orange County | ||
| Cliffside | 1 | Santa Cruz County | ||
| Clifton | 1 | Los Angeles County | 90277 | |
| Clima | 1 | Solano County | ||
| Clint | 1 | Fresno County | ||
| Clinter | 1 | Fresno County | 93703 | |
| Clinton | 1 | Amador County | 95642 | |
| Clio | 1 | Plumas County | 96106 | |
| Clippergap | 1 | Placer County | 95603 | |
| Clipper Gap | 1 | Placer County | 95603 | |
| Clipper Mills | 1 | Butte County | 95930 | |
| Clotho | 1 | Fresno County | ||
| Cloverdale | 1 | Shasta County | 96007 | |
| Cloverdale | 1 | Sonoma County | 95425 | |
| Clover Flat | 1 | San Diego County | ||
| Clovis | 1 | Fresno County | 93612 | |
| Clyde | 1 | Contra Costa County | 94520 | |
| Clyde | 1 | Imperial County | ||
| Coachella | 1 | Riverside County | 92236 | |
| Coalinga | 1 | Fresno County | 93210 | |
| Coarsegold | 1 | Madera County | 93614 | |
| Cobb | 1 | Lake County | 95426 | |
| Cobble | 1 | Colusa County | ||
| Coburn | 1 | Monterey County | ||
| Cochrane | 1 | San Joaquin County | ||
| Cockatoo Grove | 1 | San Diego County | ||
| Coddingtown | 1 | Sonoma County | 95406 | |
| Codora | 1 | Glenn County | 95970 | |
| Codora Four Corners | 1 | Glenn County | ||
| Codorniz | 1 | Orange County | ||
| Coffee | 1 | Trinity County | 96091 | |
| Coffing | 1 | Sacramento County | ||
| Cohala | 1 | Plumas County | ||
| Cohasset | 1 | Butte County | 95926 | |
| Cold Fork | 1 | Tehama County | ||
| Cold Springs | 1 | El Dorado County | ||
| Cold Springs | 1 | Tuolumne County | ||
| Cold Springs Rancheria | 1 | Fresno County | 93667 | |
| Cole | 1 | Los Angeles County | 90046 | |
| Coleville | 1 | Mono County | 96107 | |
| Colfax | 1 | Placer County | 95713 | |
| Colfax Spring | 1 | Tuolumne County | ||
| Colima | 1 | Los Angeles County | ||
| College Center | 1 | Kern County | ||
| College City | 1 | Colusa County | 95931 | |
| College Gardens | 1 | Stanislaus County | ||
| College Grove Center | 1 | San Diego County | 92115 | |
| College Heights | 1 | Kern County | 93305 | |
| College Heights | 1 | San Bernardino County | 91786 | |
| College Heights | 1 | Santa Cruz County | 95003 | |
| College Park | 1 | Santa Clara County | ||
| College Park | 1 | Ventura County | 91360 | |
| College Plaza | 1 | San Diego County | 92056 | |
| Collegeville | 1 | San Joaquin County | 95206 | |
| Collier | 1 | Contra Costa County | ||
| Collier | 1 | Los Angeles County | 91307 | |
| Collierville | 1 | San Joaquin County | 95220 | |
| Collins | 1 | Napa County | ||
| Collinsville | 1 | Solano County | 94585 | |
| Colma | 1 | San Mateo County | 94014 | |
| Coloma | 1 | El Dorado County | 95613 | |
| Colonia Independencia | 1 | Orange County | ||
| Colonial | 1 | Sacramento County | 95820 | |
| Colonial Acres | 1 | Sacramento County | ||
| Colonial Heights | 1 | Sacramento County | ||
| Colonial Heights | 1 | San Joaquin County | ||
| Colonial Juarez | 1 | Orange County | 92708 | |
| Colonia Manzanillo | 1 | Orange County | ||
| Colorado | 1 | Imperial County | ||
| Colorado River Indian Reservation | 2 | Riverside County | ||
| Colorado River Indian Reservation | 2 | San Bernardino County | ||
| Colton | 1 | San Bernardino County | 92324 | |
| Columbia | 1 | Tuolumne County | 95310 | |
| Columbia Park | 1 | Contra Costa County | ||
| Columbus | 1 | Kern County | 93306 | |
| Colusa | 1 | Colusa County | 95932 | |
| Colusa Junction | 1 | Sutter County | ||
| Colusa Rancheria | 1 | Colusa County | ||
| Cometa | 1 | San Joaquin County | ||
| Commerce | 1 | Los Angeles County | 90040 | |
| Commonwealth | 1 | Orange County | 92632 | |
| Community Center | 1 | Ventura County | 93065 | |
| Como | 1 | Orange County | ||
| Comptche | 1 | Mendocino County | 95427 | |
| Compton | 1 | Los Angeles County | 90220 | 24 |
| Compton East | 1 | Los Angeles County | 90221 | |
| Compton West | 1 | Los Angeles County | 90220 | |
| Conant | 1 | Shasta County | ||
| Conaway | 1 | Yolo County | ||
| Concepcion | 1 | Santa Barbara County | 93436 | |
| Concord | 1 | Contra Costa County | 94518 | 27 |
| Concord Naval Weapons Station | 1 | Contra Costa County | 94520 | |
| Concow | 1 | Butte County | ||
| Conejo | 1 | Fresno County | 93662 | |
| Conejo Valley | 1 | Ventura County | 91360 | |
| Confidence | 1 | Tuolumne County | 95370 | |
| Conner | 1 | Kern County | ||
| Convict Lake | 1 | Mono County | 93514 | |
| Cooks Valley | 1 | Humboldt County | ||
| Cool | 1 | El Dorado County | 95614 | |
| Coolidge Springs | 1 | Imperial County | ||
| Cool Water | 1 | San Bernardino County | ||
| Cooper | 1 | Lake County | ||
| Cooper | 1 | Monterey County | ||
| Coopers Corner | 1 | San Joaquin County | 95220 | |
| Cooperstown | 1 | Stanislaus County | ||
| Copco | 1 | Modoc County | ||
| Copco | 1 | Siskiyou County | 96044 | |
| Copic | 1 | Modoc County | ||
| Copper City | 1 | Glenn County | ||
| Copper City | 1 | San Bernardino County | ||
| Copperopolis | 1 | Calaveras County | 95228 | |
| Coram | 1 | Shasta County | ||
| Corbin Village | 1 | Los Angeles County | 91364 | |
| Corcoran | 1 | Kings County | 93212 | |
| Cordelia | 1 | Solano County | 94585 | |
| Cordelia Junction | 1 | Solano County | ||
| Cordero Junction | 1 | Solano County | ||
| Cordova | 1 | Sacramento County | ||
| Cordova Town West | 1 | Sacramento County | 95827 | |
| Cornell | 1 | Los Angeles County | 91301 | |
| Cornell | 1 | Modoc County | ||
| Corning | 1 | Tehama County | 96021 | |
| Coromar | 1 | Santa Barbara County | ||
| Corona | 1 | Riverside County | 91718 | 20 |
| Corona del Mar | 1 | Orange County | 92625 | |
| Coronado | 1 | San Diego County | 92118 | |
| Coronado Naval Amphibious Base | 1 | San Diego County | 92155 | |
| Coronet | 1 | Los Angeles County | ||
| Coronita | 1 | Riverside County | 91720 | |
| Corporal | 1 | Santa Clara County | ||
| Corralitos | 1 | Santa Cruz County | 95076 | |
| Corte Madera | 1 | Marin County | 94925 | |
| Cortena | 1 | Colusa County | ||
| Cortez | 1 | Merced County | ||
| Cortina Rancheria | 1 | Colusa County | 95987 | |
| Cory | 1 | Glenn County | ||
| Coso | 1 | Inyo County | 93549 | |
| Coso Junction | 1 | Inyo County | 93542 | |
| Costa Mesa | 1 | Orange County | 92626 | 28 |
| Costa Mesa | 1 | Orange County | ||
| Costa Mesa Air National Guard Station | 1 | Orange County | 92627 | |
| Cosumne | 1 | Sacramento County | ||
| Cosy Dell | 1 | San Bernardino County | ||
| Cotati | 1 | Sonoma County | 94931 | |
| Cotners Corner | 1 | San Bernardino County | 92307 | |
| Coto de Caza | 1 | Orange County | 92679 | |
| Cottage Corners | 1 | San Benito County | 95023 | |
| Cottage Gardens | 1 | Stanislaus County | ||
| Cottage Grove | 1 | Siskiyou County | ||
| Cottage Springs | 1 | Calaveras County | ||
| Cotton Center | 1 | Tulare County | 93257 | |
| Cottonwood | 1 | Shasta County | 96022 | |
| Cougar | 1 | Siskiyou County | ||
| Coulterville | 1 | Mariposa County | 95311 | |
| Counsman | 1 | Sutter County | ||
| Country Club | 1 | San Joaquin County | ||
| Country Club Estates | 1 | San Luis Obispo County | 93401 | |
| Country Modern | 1 | Kern County | 93501 | |
| County Strip | 1 | Los Angeles County | 90069 | |
| Court | 1 | Contra Costa County | 94553 | |
| Courtland | 1 | Sacramento County | 95615 | |
| Covelo | 1 | Mendocino County | 95428 | |
| Covina | 1 | Los Angeles County | 91722 | 24 |
| Covington Mill | 1 | Trinity County | 96052 | |
| Cowan Heights | 1 | Orange County | 92705 | |
| Cow Creek | 1 | Tuolumne County | ||
| Cowell | 1 | Contra Costa County | 94520 | |
| Cox | 1 | Riverside County | ||
| Coyote | 1 | Santa Clara County | 95013 | |
| Coyote Valley Indian Reservation | 1 | Mendocino County | ||
| Coyote Valley Rancheria | 1 | Mendocino County | ||
| Coyoteville | 1 | El Dorado County | ||
| Coyote Wells | 1 | Imperial County | ||
| Crabtree | 1 | Fresno County | ||
| Craf | 1 | San Bernardino County | 92359 | |
| Crafton | 1 | San Bernardino County | 92359 | |
| Cragmont | 1 | Alameda County | ||
| Craig | 1 | Butte County | ||
| Cranmore | 1 | Sutter County | ||
| Crannell | 1 | Humboldt County | ||
| Crater | 1 | Inyo County | ||
| Cray Mill | 1 | Mono County | ||
| Crayold | 1 | Fresno County | ||
| Creal | 1 | Kern County | ||
| Creed | 1 | Solano County | ||
| Creegan | 1 | Merced County | ||
| Crenshaw | 1 | Los Angeles County | 90008 | |
| Crenshaw-Imperial | 1 | Los Angeles County | 90310 | |
| Crescent | 1 | Los Angeles County | 90213 | |
| Crescent City | 1 | Del Norte County | 95531 | |
| Crescent City North | 1 | Del Norte County | ||
| Crescent Mills | 1 | Plumas County | 95934 | |
| Crescent North | 1 | Del Norte County | 95531 | |
| Cressey | 1 | Merced County | 95312 | |
| Crest | 1 | Lassen County | ||
| Crest | 1 | San Diego County | 92021 | |
| Cresta | 1 | Butte County | ||
| Crest Forest | 1 | San Bernardino County | ||
| Crestline | 1 | San Bernardino County | 92325 | |
| Crestmore | 1 | Riverside County | ||
| Crestmore | 1 | San Bernardino County | 92316 | |
| Crestmore Heights | 1 | Riverside County | 92509 | |
| Creston | 1 | Napa County | ||
| Creston | 1 | San Luis Obispo County | 93432 | |
| Crest Park | 1 | San Bernardino County | 92326 | |
| Crestview | 1 | Mono County | 93514 | |
| C-Road | 1 | Plumas County | ||
| Crockett | 1 | Contra Costa County | 94525 | |
| Croft | 1 | El Dorado County | ||
| Cromberg | 1 | Plumas County | 96103 | |
| Crome | 1 | Kern County | ||
| Cromir | 1 | Fresno County | ||
| Cronese Valley | 1 | San Bernardino County | ||
| Cross Roads | 1 | San Bernardino County | 92242 | |
| Crowley | 1 | Mendocino County | ||
| Crowley | 1 | Tulare County | 93291 | |
| Crowley Lake | 1 | Mono County | 93546 | |
| Crown | 1 | Sonoma County | ||
| Crown Jewel | 1 | San Bernardino County | ||
| Crown Point | 1 | San Diego County | ||
| Crows Landing | 1 | Stanislaus County | 95313 | |
| Crucero | 1 | San Bernardino County | ||
| Crutcher | 1 | Los Angeles County | 90723 | |
| Crystalaire | 1 | Los Angeles County | 93544 | |
| Crystal Cove | 1 | Orange County | 92651 | |
| Crystal Lake | 1 | Nevada County | ||
| Cucamonga | 1 | San Bernardino County | 91730 | |
| Cudahy | 1 | Los Angeles County | 90201 | |
| Cudahy | 1 | San Diego County | ||
| Cuesta-by-the-Sea | 1 | San Luis Obispo County | 93401 | |
| Culp | 1 | Shasta County | ||
| Culver City | 1 | Los Angeles County | 90230 | 33 |
| Culver Junc | 1 | Los Angeles County | ||
| Cummings | 1 | Mendocino County | 95477 | |
| Cunard | 1 | Sutter County | ||
| Cunningham | 1 | Sonoma County | 95472 | |
| Cupertino | 1 | Santa Clara County | 95014 | |
| Curlew | 1 | Imperial County | ||
| Curry Village | 1 | Mariposa County | 95389 | |
| Curtis | 1 | Siskiyou County | ||
| Curtiss Heights | 1 | Humboldt County | 95521 | |
| Curtner | 1 | Alameda County | ||
| Cushenbury | 1 | San Bernardino County | ||
| Cushing | 1 | San Luis Obispo County | ||
| Cutler | 1 | Tulare County | 93615 | |
| Cutten | 1 | Humboldt County | 95534 | |
| Cuttings Wharf | 1 | Napa County | ||
| Cuyama | 1 | Santa Barbara County | 93214 | |
| Cuyapaipe Indian Reservation | 1 | San Diego County | 92048 | |
| Cygnus | 1 | Solano County | ||
| Cypress | 1 | Orange County | 90630 | |
| Cypress Grove | 1 | Marin County | 94940 | |
| Cypress South | 1 | Orange County | 90630 |