| Cypress Lakes Community Development District, FL (CDD) |
| Cypress Shadows Community Development District, FL (CDD) |
| Cyr, ME (Plantation) |
| Cyril, OK (Town) |
| Cyrus, MN (City) |
| D'Iberville, MS (City) |
| D'Lo, MS (Town) |
| Dacoma, OK (Town) |
| Dacono, CO (City) |
| Dacula, GA (City) |
| Dade City, FL (City) |
| Dade County, MO (County) |
| Dade County, GA (County) |
| Dadeville, AL (City) |
| Dadeville, MO (Village) |
