- Central Ferry
- Chambers
- Crabtree
- Cougar Valley
- Camden
- Carlisle
- Carlton
- Carrolls
- Carson
- Cascade Park East
- Cascade Park West
- Cavalero Corner
- Cedar Falls
- Cedar Grove
- Cedar Mountain
- Cedarhurst
- Cedonia
- Central Valley
- Chattaroy
- Chelan Falls
- Chesaw
- Chico
- Chimacum
- Christopher
- Cicero
- Cinebar
- Clallam Bay
- Clayton
- Clearview
- Clearwater