- Cave Rock
- Cluster
- Conical White Rock
- Couplets
- Cousins
- Cat and Kittens Rock
- Cedar Point
- Chiefs Island
- Coaledo
- Coos River
- Cooston
- Coquille Rock
- Cranberry Corners
- Crown Point
- Canby
- Cannon Beach
- Canyon City
- Canyonville
- Cape Meares
- Carlton
- Cascade Locks
- Cave Junction
- Cedar Hills
- Cedar Mill
- Central Point
- Cloverdale
- Chenoweth
- Calkins
- Callahan
- Cannery Island