| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Placentia | city | California | United States | 33.87 | -117.87 | 269 | |
| Placerville | city | California | United States | 38.73 | -120.80 | 1998 | |
| Plainfield | city | California | United States | 38.59 | -121.80 | 59 | |
| Plains (historical) | city | California | United States | 37.02 | -120.35 | 160 | |
| Plainsburg | city | California | United States | 37.23 | -120.32 | 209 | |
| Plainview | city | California | United States | 36.14 | -119.13 | 354 | |
| Planada | city | California | United States | 37.29 | -120.32 | 252 | |
| Plano | city | California | United States | 36.04 | -119.01 | 830 | |
| Plantation Mobile Home Estates | city | California | United States | 33.80 | -117.90 | 108 | |
| Plantel (historical) | city | California | United States | 36.97 | -121.53 | 160 | |
| Plaskett | city | California | United States | 35.92 | -121.47 | 830 | |
| Plasse | city | California | United States | 38.64 | -120.13 | 7624 | |
| Plaster City | city | California | United States | 32.79 | -115.86 | 91 | |
| Platina | city | California | United States | 40.36 | -122.89 | 2568 | |
| Play Port Mobile Home Village | city | California | United States | 33.64 | -117.94 | 75 | |
| Playa Vista | city | California | United States | 33.97 | -118.43 | 55 | |
| Playa del Rey | city | California | United States | 33.95 | -118.45 | 62 | |
| Plaza Mobile Home Estates | city | California | United States | 33.71 | -117.91 | 13 | |
| Plaza del Rey Mobile Home Park | city | California | United States | 37.40 | -122.00 | 19 | |
| Pleasant Grove | city | California | United States | 38.82 | -121.48 | 45 | |
| Pleasant Grove (historical) | city | California | United States | 36.08 | -119.17 | 328 | |
| Pleasant Hill | city | California | United States | 37.95 | -122.06 | 180 | |
| Pleasant Valley | city | California | United States | 38.68 | -120.66 | 2509 | |
| Pleasant Valley Mobile Home Park | city | California | United States | 32.84 | -117.03 | 830 | |
| Pleasant Valley Mobile Home Park | city | California | United States | 34.16 | -119.18 | 3 | |
| Pleasant View | city | California | United States | 35.81 | -118.64 | 5029 | |
| Pleasanton | city | California | United States | 37.66 | -121.87 | 393 | |
| Pleyto | city | California | United States | 35.86 | -120.99 | 830 | |
| Pleyto (historical) | city | California | United States | 35.86 | -121.00 | 987 | |
| Plum Valley | city | California | United States | 39.45 | -120.96 | 4189 | |
| Plumas | city | California | United States | 39.76 | -120.08 | 5029 | |
| Plumas Eureka | city | California | United States | 39.79 | -120.65 | 4396 | |
| Plumas Eureka (historical) | city | California | United States | 39.76 | -120.71 | 5869 | |
| Plumas Lake | city | California | United States | 39.02 | -121.56 | 42 | |
| Plumbago | city | California | United States | 39.45 | -120.82 | 4189 | |
| Plumtree (historical) | city | California | United States | 38.57 | -121.61 | 9 | |
| Plymouth | city | California | United States | 38.48 | -120.84 | 1145 | |
| Plymouth Village | city | California | United States | 34.04 | -117.17 | 1669 |