- Cherokee Woods
- Cherrington
- Cherry Hill
- Cherry Island
- Chestnut Hill Estates
- Choate
- Christiana Acres
- Christiana Green
- Christiana Landing
- Christiana Village
- Cristine Manor
- Church Hill
- Clair Manor
- Claridge Court
- Clay Acres
- Claymont Addition
- Claymont Heights
- Clearfield
- Clearview Manor
- Cleland Heights
- Clermont
- Clifton Park Manor
- Club Lane
- Coach Hill
- Coffee Run
- Cokesbury Village
- College Park
- Collins Beach
- Colonial Heights
- Colonial Village Apartments