- Four Acres
- Feather River Inn
- Feather River Park
- Five Points
- Foxwood
- Fern Valley
- Ferrum
- French Valley
- Folsom Junction
- Franklin
- Freeport
- Fruitridge Pocket
- Fishel
- Fizzben Heights
- Flamingo Heights
- Freda
- Fredalba
- Fremont
- Fairbanks Ranch
- Fallbrook Junction
- Fiesta Island
- Foster
- Four Corners
- Los Farallones
- Financial District
- Fort McDowell
- Fort Point Rock
- Fay Island
- Femngi Island
- Fern Island