- Farina
- Farmer City
- Fieldon
- Fisher
- Fithian
- Flanagan
- Flossmoor
- Foosland
- Ford Heights
- Forest View
- Forrest
- Forreston
- Fox Lake
- Fox Lake Hills
- Fox River Grove
- Frankfort Square
- Franklin Grove
- Freeman Spur
- Fults
- Fair Acres
- Fair Haven
- Fair Meadows
- Fair Oaks
- Fair Oaks
- Fairbanks
- Fairdale
- Fairfield Estates
- Fairgrange
- Fairland
- Fairman