| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Folsom | city | California | United States | 38.68 | -121.18 | 239 | |
| Folsom Junction | city | California | United States | 38.67 | -121.18 | 177 | |
| Fondo | city | California | United States | 33.11 | -115.62 | -1689 | |
| Fontana | city | California | United States | 34.09 | -117.44 | 1210 | |
| Fontenay Villa | city | California | United States | 37.08 | -121.97 | 905 | |
| Foothill Estates | city | California | United States | 34.63 | -120.48 | 236 | |
| Foothill Farms | city | California | United States | 38.68 | -121.35 | 118 | |
| Foothill Ranch | city | California | United States | 33.69 | -117.66 | 915 | |
| Foothills of San Marcos Mobile Home Park | city | California | United States | 33.15 | -117.14 | 830 | |
| Foppiano | city | California | United States | 38.02 | -121.24 | 36 | |
| Forbes (historical) | city | California | United States | 38.00 | -122.54 | 137 | |
| Forbestown | city | California | United States | 39.52 | -121.27 | 2598 | |
| Ford City | city | California | United States | 35.15 | -119.46 | 869 | |
| Forebay | city | California | United States | 39.24 | -120.74 | 4189 | |
| Forest | city | California | United States | 39.49 | -120.85 | 5029 | |
| Forest Falls | city | California | United States | 34.09 | -116.92 | 5869 | |
| Forest Glen | city | California | United States | 40.37 | -123.33 | 2509 | |
| Forest Hill | city | California | United States | 37.75 | -122.46 | 830 | |
| Forest Hills | city | California | United States | 38.51 | -122.92 | 396 | |
| Forest Home (historical) | city | California | United States | 38.46 | -120.96 | 830 | |
| Forest Knolls | city | California | United States | 38.02 | -122.69 | 396 | |
| Forest Knolls | city | California | United States | 39.24 | -121.01 | 3349 | |
| Forest Knolls | city | California | United States | 37.75 | -122.46 | 830 | |
| Forest Lake | city | California | United States | 38.82 | -122.72 | 2693 | |
| Forest Meadows | city | California | United States | 38.17 | -120.41 | 3375 | |
| Forest Park | city | California | United States | 37.13 | -122.14 | 830 | |
| Forest Park | city | California | United States | 34.45 | -118.43 | 1797 | |
| Forest Ranch | city | California | United States | 39.88 | -121.67 | 2509 | |
| Forest Spring (historical) | city | California | United States | 39.16 | -121.06 | 2509 | |
| Forest Springs | city | California | United States | 37.14 | -122.15 | 830 | |
| Foresta | city | California | United States | 37.70 | -119.76 | 4373 | |
| Foresthill | city | California | United States | 39.02 | -120.82 | 2509 | |
| Forestville | city | California | United States | 38.47 | -122.89 | 118 | |
| Fornis | city | California | United States | 38.89 | -120.86 | 2509 | |
| Fort Bidwell | city | California | United States | 41.86 | -120.15 | 4507 | |
| Fort Bragg | city | California | United States | 39.45 | -123.81 | 26 | |
| Fort Camp (historical) | city | California | United States | 36.76 | -119.67 | 298 | |
| Fort Dick | city | California | United States | 41.87 | -124.15 | 157 | |
| Fort Goff | city | California | United States | 41.86 | -123.26 | 2001 | |
| Fort Irwin | city | California | United States | 35.26 | -116.68 | 2509 | |
| Fort Jones | city | California | United States | 41.61 | -122.84 | 3349 | |
| Fort Jones | city | California | United States | 38.26 | -120.42 | 3349 | |
| Fort McDowell | city | California | United States | 37.86 | -122.42 | 52 | |
| Fort Miller (historical) | city | California | United States | 37.02 | -119.66 | 830 | |
| Fort Ord Village (historical) | city | California | United States | 36.62 | -121.83 | 141 | |
| Fort Piute (historical) | city | California | United States | 35.11 | -114.99 | 2893 | |
| Fort Romie | city | California | United States | 36.40 | -121.35 | 183 | |
| Fort Roosevelt | city | California | United States | 36.32 | -119.66 | 196 | |
| Fort Rosecrans | city | California | United States | 32.68 | -117.25 | 150 | |
| Fort Seward | city | California | United States | 40.22 | -123.64 | 400 | |
| Fort Winfield Scott | city | California | United States | 37.80 | -122.47 | 196 | |
| Fortuna | city | California | United States | 40.60 | -124.16 | 177 | |
| Foster | city | California | United States | 32.91 | -116.93 | 987 | |
| Foster | city | California | United States | 41.25 | -122.96 | 7063 | |
| Foster Bar (historical) | city | California | United States | 39.44 | -121.13 | 1669 | |
| Foster City | city | California | United States | 37.56 | -122.27 | 42 | |
| Foster Park | city | California | United States | 34.35 | -119.31 | 393 | |
| Fountain Place | city | California | United States | 38.85 | -119.93 | 7942 | |
| Fountain Springs | city | California | United States | 35.89 | -118.92 | 905 | |
| Fountain Valley | city | California | United States | 33.71 | -117.95 | 6 | |
| Fountain Valley Mobile Home Estates | city | California | United States | 33.70 | -117.97 | 6 | |
| Four Acres | city | California | United States | 39.01 | -120.79 | 1669 | |
| Four Corners | city | California | United States | 38.28 | -122.46 | 39 | |
| Four Corners | city | California | United States | 41.00 | -121.63 | 3349 | |
| Four Corners | city | California | United States | 32.98 | -116.78 | 1669 | |
| Four Corners | city | California | United States | 37.96 | -122.04 | 193 | |
| Four Corners | city | California | United States | 40.94 | -121.61 | 3349 | |
| Four Pines | city | California | United States | 39.61 | -123.01 | 3700 | |
| Four Points | city | California | United States | 34.54 | -118.03 | 2788 | |
| Four Seasons Mobile And Recreational Vehicle Park | city | California | United States | 36.33 | -119.69 | 196 | |
| Fourth Crossing | city | California | United States | 38.13 | -120.63 | 997 | |
| Fouts Springs | city | California | United States | 39.35 | -122.66 | 1768 | |
| Fowler | city | California | United States | 36.63 | -119.68 | 298 | |
| Fowler Place | city | California | United States | 40.20 | -122.56 | 830 | |
| Fox Hollow Mobile Home Park | city | California | United States | 37.41 | -122.01 | 22 | |
| Foxwood | city | California | United States | 40.29 | -121.13 | 5029 |