- Fallon
- Fort Smith
- Four Corners
- Frenchtown
- Fairfield
- Fairview
- Florence
- Forsyth
- Fox Lake
- Finley Point
- Flaxville
- Fort Belknap Agency
- Fort Benton
- Fort Shaw
- Fortine
- Frazer
- Froid
- Fromberg
- Fair Haven Colony
- Fairmont Hot Springs
- Fairview Terrace Trailer Court
- Faith Mobile Home Court
- False Summit
- Far West Island
- Farmington
- Farralltown
- Fee
- Feely
- Ferdig
- Fergus