| Callensburg, PA (Borough) |
| Callery, PA (Borough) |
| Callicoon, NY (Town) |
| Callimont, PA (Borough) |
| Callisburg, TX (Town) |
| Calloway County, KY (County) |
| Calmar, IA (City) |
| Calmar Township, IA (Township) |
| Caln Township, PA (Township) |
| Calumet, MI (Village) |
| Calumet, IN (Township) |
| Calumet, IA (City) |
| Calumet, MN (City) |
| Calumet, OK (Town) |
| Calumet City, IL (City) |
