Barrios de Wisconsin C
- Caledonia (6)
- Calumet Farms (3)
- Cambridge Heights (14)
- Cannon Park (1)
- Capitol Heights (2)
- Capitol View Heights (1)
- Carpenter-Ridgeway (3)
- Castle Manor (5)
- Central Green Bay (19)
- City of Fond du Lac (32)
- City Park Historic District (2)
- Clarke Square (8)
- Cleveland Park (1)
- Clock Tower Acres (1)
- Colburn (1)
- Cold Spring Park (2)
- Colony Oaks (2)
- Columbus (15)
- Columbus Park (4)
- Concordia (4)
- Cooper Park (1)