- Cedardale
- Cedarhurst Park
- Celilo Village
- Centennial
- Centennial Island
- Champoeg
- Chapman
- Chapman Corner
- Chapman Landing
- Charbonneau
- Charleston
- Charlestown
- Chatham Island
- Chehalem
- Chemawa
- Chemult
- Cherry Grove
- Cherry Heights
- Cherryville
- Cheshire
- Chiefs Island
- China Town
- Chitwood
- Christmas Valley
- City of the Dalles
- Clackamas Heights
- Clarke
- Clarkes
- Clarksville
- Clarno