- Century East
- Cereal
- Cerro Gordo
- Chadwick
- Chalfin Bridge
- Challacombe
- Chambersburg
- Champaign
- Champion Creek
- Champlin
- Chana
- Chandlerville
- Channahon
- Channel Lake
- Chapel Hill Estates
- Chapin
- Chapman
- Charlemagne
- Charlemagne East
- Charleston
- Charlotte
- Charlottes Trailer Court
- Charring Cross
- Charter Grove
- Chatham
- Chatsworth
- Chatton
- Chatton Island
- Chauncey
- Chautauqua