- Cayuse Junction
- Cedar
- Cedar Creek
- Cedarhill
- Cedron
- Centerville
- Central
- Central Cove
- Cerro Grande
- Chain Island
- Chalk Cut
- Challis
- Chapin
- Chat'u'washa'lqs Bluff
- Chatcolet
- Chausse
- Cherry Creek
- Cherrylane
- Cherryville
- Chesley
- Chester
- Chesterfield
- Chilco
- Chilly
- China Hat
- China Hill
- Chł'ach'alqw Landing
- Chubbuck
- Cinder Island
- Clagstone