- Chehalis Village
- Chelan
- Chelan Falls
- Chelatchie
- Cheney
- Cherokee
- Cherokee Bay Park
- Cherry Grove
- Cherry Hill Estates Mobile Home Park
- Cherrywood Mobile Home Manor Sewage Treatment Plant
- Cherrywood Mobile Manor
- Chesaw
- Cheviot
- Chew
- Chewelah
- Chico
- Chillowist
- Chimacum
- Chinook
- Chinook Mobile Home Park
- Chiwaukum
- Chopaka
- Christopher
- Chuckanut
- Chuckanut Island
- Chuckanut Junction
- Chuckanut Village
- Chumstick
- Cicero
- Cinebar