- Forks
- Forston
- Fort Canby
- Fort Casey
- Fort Flagler
- Fort Knox Mobile Home Park
- Fort Lewis
- Fort Nisqually
- Fort Rains
- Fort Spokane
- Fort Ward
- Fortress Island
- Fortson
- Fortuna
- Foster
- Foster Island
- Foundation Island
- Four Corners
- Four Corners
- Four Corners
- Four Lakes
- Fourth Avenue West Estates Mobile Home Park
- Fox Chase Mobile Home Park
- Fox Island
- Fox Island
- Foy
- Fragaria
- Frances
- Frankfort
- Franklin