C
- Cheching
- Cottonwood, Matanuska-Susitna
- Chilkat, Haines
- Cobol
- Crystal
- Crooked Creek, Southeast Fairbanks
- Cottonwood
- Coal
- (Kenai Peninsula Borough) Crown Point
- Chenega (historical)
- (Campbell County) Cape Sarichef
- (Perry County) Cap Spencer
- (Aleutians West Census Area) Column Rocks
- (Aleutians West Census Area) Chuckskin Rocks
- (Aleutians West Census Area) Chaloo'ga Rocks
- (Aleutians West Census Area) Cooper Islands
- (Prince of Wales-Hyder Census Area) Channel Island
- (Ketchikan Gateway Borough) Channel Island
- (Ketchikan Gateway Borough) Cache Island
- (Prince of Wales-Hyder Census Area) Cabras Islands
- (Sitka City and Borough) Calligan Island
- (Sitka City and Borough) Calming Island
- (Madison County) Cam Island
- (Prince of Wales-Hyder Census Area) Camp Island
- (Madison County) Camp Island
- (Prince of Wales-Hyder Census Area) Canas Island
- (Ketchikan Gateway Borough) Candle Island
- (Perry County) Cannery
- (Prince of Wales-Hyder Census Area) Camp Island
- (Thomas County) Change Island