| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Coach Royal Trailer Park | city | California | United States | 33.74 | -117.90 | 42 | |
| Coachella | city | California | United States | 33.68 | -116.17 | -1689 | |
| Coalinga | city | California | United States | 36.14 | -120.36 | 830 | |
| Coarsegold | city | California | United States | 37.26 | -119.70 | 2598 | |
| Cobb | city | California | United States | 38.82 | -122.72 | 2575 | |
| Coburn | city | California | United States | 36.29 | -121.15 | 351 | |
| Cochrane | city | California | United States | 37.73 | -121.36 | 42 | |
| Cockatoo Grove | city | California | United States | 32.64 | -116.98 | 830 | |
| Codora | city | California | United States | 39.46 | -122.02 | 78 | |
| Coffee | city | California | United States | 41.10 | -122.78 | 3349 | |
| Coffee Creek | city | California | United States | 41.09 | -122.71 | 2509 | |
| Coffing | city | California | United States | 38.46 | -121.32 | 59 | |
| Cohasset | city | California | United States | 39.93 | -121.73 | 2706 | |
| Colache Town | city | California | United States | 36.92 | -121.76 | 32 | |
| Cold Fork | city | California | United States | 40.17 | -122.67 | 1669 | |
| Cold Spring (historical) | city | California | United States | 39.46 | -120.91 | 4189 | |
| Cold Springs | city | California | United States | 38.74 | -120.87 | 1669 | |
| Cold Springs | city | California | United States | 38.16 | -120.05 | 5029 | |
| Cole | city | California | United States | 42.00 | -122.64 | 2818 | |
| Coleman | city | California | United States | 39.18 | -120.98 | 2509 | |
| Coleville | city | California | United States | 38.57 | -119.51 | 5173 | |
| Colfax | city | California | United States | 39.10 | -120.95 | 2509 | |
| Colfax Spring | city | California | United States | 37.82 | -120.03 | 4189 | |
| Colima | city | California | United States | 33.94 | -118.01 | 196 | |
| Colina Vista | city | California | United States | 33.46 | -117.12 | 1194 | |
| College City | city | California | United States | 39.01 | -122.01 | 62 | |
| College Heights | city | California | United States | 34.11 | -117.69 | 1669 | |
| College Heights | city | California | United States | 32.77 | -117.07 | 406 | |
| College Park | city | California | United States | 37.34 | -121.90 | 78 | |
| College Terrace | city | California | United States | 37.42 | -122.15 | 154 | |
| Collegeville | city | California | United States | 37.90 | -121.15 | 55 | |
| Collierville | city | California | United States | 38.21 | -121.27 | 52 | |
| Collins | city | California | United States | 38.17 | -122.25 | 55 | |
| Collins (historical) | city | California | United States | 36.87 | -119.62 | 830 | |
| Collins (historical) | city | California | United States | 34.04 | -117.58 | 853 | |
| Collinsville | city | California | United States | 38.08 | -121.85 | 3 | |
| Colma | city | California | United States | 37.68 | -122.46 | 196 | |
| Coloma | city | California | United States | 38.80 | -120.89 | 902 | |
| Colonia Juarez | city | California | United States | 33.71 | -117.95 | 6 | |
| Colonia Manzanilla | city | California | United States | 33.76 | -117.93 | 49 | |
| Colton | city | California | United States | 34.07 | -117.31 | 1017 | |
| Columbia | city | California | United States | 38.04 | -120.40 | 2509 | |
| Columbia Village | city | California | United States | 38.02 | -120.40 | 2509 | |
| Colusa | city | California | United States | 39.21 | -122.01 | 39 | |
| Colusa Junction | city | California | United States | 39.15 | -121.66 | 55 | |
| Colusa Rancheria | city | California | United States | 39.25 | -122.03 | 59 | |
| Cometa | city | California | United States | 37.86 | -120.95 | 160 | |
| Commerce | city | California | United States | 34.00 | -118.16 | 147 | |
| Community Center | city | California | United States | 34.27 | -118.74 | 997 | |
| Como | city | California | United States | 33.70 | -117.79 | 82 | |
| Comptche | city | California | United States | 39.26 | -123.59 | 351 | |
| Compton | city | California | United States | 33.90 | -118.22 | 65 | |
| Comstock Acres | city | California | United States | 39.16 | -120.15 | 6286 | |
| Comstock Ranch | city | California | United States | 38.05 | -120.26 | 3599 | |
| Conant | city | California | United States | 41.11 | -122.33 | 2017 | |
| Conaway | city | California | United States | 38.68 | -121.67 | 19 | |
| Concepcion | city | California | United States | 34.45 | -120.45 | 3 | |
| Concord | city | California | United States | 37.98 | -122.03 | 173 | |
| Concow | city | California | United States | 39.73 | -121.53 | 1968 | |
| Condemned Bar (historical) | city | California | United States | 39.33 | -121.20 | 830 | |
| Conejo | city | California | United States | 36.52 | -119.72 | 200 | |
| Conejo Valley Trailer Park | city | California | United States | 34.18 | -118.91 | 830 | |
| Confederate Corners | city | California | United States | 36.64 | -121.66 | 45 | |
| Confidence | city | California | United States | 38.05 | -120.20 | 4189 | |
| Coniston | city | California | United States | 38.41 | -121.56 | 3 | |
| Conley (historical) | city | California | United States | 38.30 | -121.23 | 62 | |
| Conner | city | California | United States | 35.18 | -119.12 | 298 | |
| Constantia | city | California | United States | 39.95 | -120.04 | 4537 | |
| Continental Mobile Home Park | city | California | United States | 37.63 | -122.06 | 187 | |
| Contra Costa Centre | city | California | United States | 37.93 | -122.06 | 187 | |
| Cooks Valley | city | California | United States | 40.00 | -123.79 | 830 | |
| Cooley Landing | city | California | United States | 37.48 | -122.12 | 3 | |
| Coolidge Springs | city | California | United States | 33.39 | -116.05 | -1689 | |
| Coombs (historical) | city | California | United States | 39.30 | -121.53 | 101 | |
| Cooper | city | California | United States | 39.22 | -123.00 | 1748 | |
| Cooper | city | California | United States | 36.71 | -121.72 | 32 | |
| Cooperstown | city | California | United States | 37.74 | -120.54 | 298 | |
| Copco | city | California | United States | 41.98 | -122.36 | 2549 | |
| Copeland | city | California | United States | 39.96 | -122.06 | 213 | |
| Copic | city | California | United States | 41.87 | -121.34 | 4189 | |
| Copper City | city | California | United States | 39.72 | -122.81 | 5869 | |
| Copper City | city | California | United States | 35.35 | -117.19 | 3759 | |
| Copper Cove Subdivision | city | California | United States | 37.93 | -120.63 | 869 | |
| Copper Cove Village | city | California | United States | 37.96 | -120.64 | 830 | |
| Copperopolis | city | California | United States | 37.98 | -120.64 | 990 | |
| Coppervale | city | California | United States | 40.35 | -120.90 | 5193 | |
| Copple Place | city | California | United States | 40.01 | -122.63 | 1669 | |
| Coram | city | California | United States | 40.71 | -122.44 | 830 | |
| Corcoran | city | California | United States | 36.10 | -119.56 | 200 | |
| Cordelia | city | California | United States | 38.21 | -122.14 | 13 | |
| Cordelia Junction | city | California | United States | 38.22 | -122.14 | 19 | |
| Cordero Junction | city | California | United States | 38.29 | -121.95 | 78 | |
| Cordova | city | California | United States | 38.51 | -121.48 | 16 | |
| Cornelius (historical) | city | California | United States | 38.94 | -121.54 | 42 | |
| Cornell | city | California | United States | 41.80 | -121.32 | 4189 | |
| Cornell | city | California | United States | 34.11 | -118.78 | 830 | |
| Corning | city | California | United States | 39.93 | -122.18 | 269 | |
| Cornwall | city | California | United States | 38.02 | -121.88 | 59 | |
| Cornwell (historical) | city | California | United States | 36.40 | -119.78 | 196 | |
| Coromar | city | California | United States | 34.43 | -119.87 | 59 | |
| Corona | city | California | United States | 33.88 | -117.57 | 830 | |
| Corona (historical) | city | California | United States | 38.26 | -122.66 | 39 | |
| Corona del Mar | city | California | United States | 33.60 | -117.87 | 75 | |
| Coronado | city | California | United States | 32.69 | -117.18 | 0 | |
| Coronado Gardens Mobile Home Park | city | California | United States | 33.70 | -116.24 | 9 | |
| Coronado Heights (historical) | city | California | United States | 32.60 | -117.13 | 6 | |
| Corporal | city | California | United States | 36.93 | -121.55 | 150 | |
| Corral de Tierra | city | California | United States | 36.57 | -121.73 | 403 | |
| Corralitos | city | California | United States | 36.99 | -121.81 | 275 | |
| Corriganville | city | California | United States | 34.27 | -118.67 | 1194 | |
| Corte Madera | city | California | United States | 37.93 | -122.53 | 193 | |
| Cortena | city | California | United States | 39.22 | -122.19 | 72 | |
| Cortez | city | California | United States | 37.48 | -120.74 | 160 | |
| Cory | city | California | United States | 39.77 | -122.15 | 223 | |
| Coso | city | California | United States | 35.98 | -117.93 | 3395 | |
| Coso Junction | city | California | United States | 36.04 | -117.95 | 3382 | |
| Costa Mesa | city | California | United States | 33.64 | -117.92 | 29 | |
| Costa Mesa (Orange County) | city | California | United States | 33.64 | -117.92 | 29 | |
| Costa Mesa Mobile Home Estates | city | California | United States | 33.66 | -117.91 | 3 | |
| Cosumne | city | California | United States | 38.49 | -121.17 | 124 | |
| Cosy Dell | city | California | United States | 34.28 | -117.45 | 3349 | |
| Cota | city | California | United States | 33.84 | -118.21 | 75 | |
| Cotati | city | California | United States | 38.33 | -122.71 | 141 | |
| Cotners Corner | city | California | United States | 34.47 | -117.17 | 3349 | |
| Coto De Caza | city | California | United States | 33.60 | -117.59 | 830 | |
| Cottage Corners | city | California | United States | 36.87 | -121.40 | 269 | |
| Cottage Gardens | city | California | United States | 34.11 | -117.27 | 1066 | |
| Cottage Grove | city | California | United States | 41.60 | -123.51 | 1092 | |
| Cottage Springs | city | California | United States | 38.36 | -120.21 | 5869 | |
| Cotton Center | city | California | United States | 36.07 | -119.14 | 344 | |
| Cottonwood | city | California | United States | 40.39 | -122.28 | 400 | |
| Cottonwood | city | California | United States | 38.66 | -121.97 | 160 | |
| Cottonwood Estates | city | California | United States | 40.39 | -122.27 | 416 | |
| Cougar | city | California | United States | 41.58 | -122.19 | 5029 | |
| Coulterville | city | California | United States | 37.71 | -120.20 | 1797 | |
| Counsman | city | California | United States | 38.75 | -121.49 | 39 | |
| Country Aire Mobile Home Park | city | California | United States | 40.58 | -122.34 | 830 | |
| Country Club | city | California | United States | 37.97 | -121.34 | 3 | |
| Country Club Mobile Estates | city | California | United States | 40.57 | -122.36 | 830 | |
| Country Club Park | city | California | United States | 34.05 | -118.32 | 173 | |
| Country Manor Estates | city | California | United States | 33.48 | -117.11 | 1194 | |
| Country Mobile Estates | city | California | United States | 34.48 | -117.83 | 3497 | |
| Country Road Estates | city | California | United States | 33.60 | -117.09 | 1669 | |
| Country Side Mobile Home Park | city | California | United States | 39.14 | -121.51 | 75 | |
| Country Villa Estates | city | California | United States | 38.69 | -122.02 | 187 | |
| Country Villa Estates Mobile Home Park | city | California | United States | 36.99 | -121.95 | 95 | |
| Courtland | city | California | United States | 38.33 | -121.57 | 3 | |
| Cove Mobile Villa | city | California | United States | 41.66 | -122.59 | 2798 | |
| Covelo | city | California | United States | 39.79 | -123.25 | 1669 | |
| Covina | city | California | United States | 34.09 | -117.89 | 830 | |
| Cow Creek | city | California | United States | 38.24 | -119.99 | 5997 | |
| Cowan Heights | city | California | United States | 33.78 | -117.77 | 830 | |
| Cowell | city | California | United States | 37.95 | -121.99 | 347 | |
| Cox | city | California | United States | 33.84 | -114.77 | 872 | |
| Coyote | city | California | United States | 37.22 | -121.74 | 252 | |
| Coyote Valley Rancheria (historical) | city | California | United States | 39.23 | -123.17 | 830 | |
| Coyote Wells | city | California | United States | 32.74 | -115.97 | 285 | |
| Coyoteville | city | California | United States | 38.55 | -120.69 | 2509 | |
| Cozzens Corner | city | California | United States | 38.70 | -122.95 | 219 |