| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Prado Verde Mobile Home Park | city | California | United States | 33.76 | -117.97 | 39 | |
| Prairie City | city | California | United States | 38.64 | -121.16 | 298 | |
| Prather | city | California | United States | 37.04 | -119.51 | 1669 | |
| Pratt Place | city | California | United States | 39.91 | -123.72 | 1696 | |
| Pratton | city | California | United States | 36.75 | -119.90 | 196 | |
| Prattville | city | California | United States | 40.21 | -121.16 | 4573 | |
| Prenda | city | California | United States | 33.92 | -117.39 | 997 | |
| Presidio Terrace | city | California | United States | 37.79 | -122.46 | 226 | |
| Presswood | city | California | United States | 39.17 | -123.21 | 830 | |
| Preston | city | California | United States | 38.84 | -123.02 | 396 | |
| Prewit (historical) | city | California | United States | 36.16 | -119.02 | 830 | |
| Priest | city | California | United States | 37.81 | -120.27 | 2509 | |
| Primero (historical) | city | California | United States | 36.60 | -119.29 | 830 | |
| Princeton | city | California | United States | 37.50 | -122.49 | 39 | |
| Princeton | city | California | United States | 39.40 | -122.01 | 62 | |
| Prize (historical) | city | California | United States | 39.06 | -122.02 | 42 | |
| Proberta | city | California | United States | 40.08 | -122.17 | 328 | |
| Professorville | city | California | United States | 37.44 | -122.15 | 134 | |
| Progress | city | California | United States | 39.06 | -121.80 | 29 | |
| Project City (historical) | city | California | United States | 40.68 | -122.35 | 830 | |
| Prospectus Montis | city | California | United States | 37.39 | -122.08 | 127 | |
| Prospero | city | California | United States | 35.47 | -119.13 | 830 | |
| Prosser (historical) | city | California | United States | 39.37 | -120.13 | 5869 | |
| Prosser Lake Heights | city | California | United States | 39.35 | -120.18 | 5967 | |
| Prosser Lakeview Estates | city | California | United States | 39.36 | -120.17 | 6003 | |
| Prothero Mobile Home Park | city | California | United States | 33.62 | -117.70 | 387 | |
| Providence (historical) | city | California | United States | 39.26 | -121.04 | 2627 | |
| Prunedale | city | California | United States | 36.78 | -121.67 | 98 |