| Constable, NY (Town) |
| Constableville, NY (Village) |
| Constantia, NY (Town) |
| Constantine, MI (Village) |
| Constantine Township, MI (Township) |
| Continental, OH (Village) |
| Contra Costa County, CA (County) |
| Contrada Hills Community Development District, FL (CDD) |
| Converse, TX (City) |
| Converse, LA (Village) |
| Converse, IN (Town) |
| Converse County, WY (County) |
| Convis Township, MI (Township) |
| Convoy, OH (Village) |
| Conway, PA (Borough) |
