- Cedar Island
- Cedar Island
- Cedar Lake
- Cedar Park
- Cedarburg
- Cedarville
- Center Valley
- Centerville
- Centerville
- Centerville
- Central Park
- Centuria
- Chaffey
- Chain O' Lakes-King
- Chambers Island
- Champaign Island
- Champion
- Chapel Ridge
- Chapultepee
- Charlesburg
- Charlie Bluff
- Charme
- Chase
- Chaseburg
- Cheeseville
- Chelsea
- Chenequa
- Cherneyville
- Cherokee
- Chetek