- Feriton
- Fern Heath
- Fern Hill
- Fern Prairie
- Ferncliff
- Ferndale
- Ferndale Mobile Village
- Fernwood
- Ferry Baker Island
- Fidalgo
- Fidalgo Island
- Fife
- Fife Heights
- Finley
- Finn Hill
- Fir Acres Mobile Home Park
- Fir Island
- Fir Lane Valley Mobile Home Park
- Fir Meadows Mobile Home Park
- Fir Tree
- Fircrest
- Firdale
- Fire Trail
- Firloch
- Firwest Mobile Home Park
- Firwood
- Firwood Lane Mobile Home Park
- Firwood Mobile Home Park
- Fish Town
- Fisher