K
- Kako
- Kasilof Village
- Kijik
- (Lowndes County) Kavik
- (Lowndes County) Kuparuk
- (Lowndes County) Kavik River Camp
- (Yukon-Koyukuk Census Area) Kalakaket Creek
- (Aleutians West Census Area) Kennon Island
- (Aleutians West Census Area) Kohl Island
- (Aleutians West Census Area) Khvostof Island
- (Aleutians West Census Area) Kiska Island
- (Thomas County) Kadin Island
- (Madison County) Kah Sheets Island
- (Sitka City and Borough) Kaiuchali Island
- (Sitka City and Borough) Kakovo Island
- (Ketchikan Gateway Borough) Kanagunut Island
- (Sitka City and Borough) Kane Islands
- (Sitka City and Borough) Kanga Island
- (Sitka City and Borough) Kamennoi Island
- (Prince of Wales-Hyder Census Area) Kasaan Island
- (Thomas County) Kashevarof Islands
- (Sitka City and Borough) Kasiana Islands
- (Prince of Wales-Hyder Census Area) Kassa Island
- (Prince of Wales-Hyder Census Area) Kassan Islands
- (Haines Borough) Kataguni Island
- (Sitka City and Borough) Katz Island
- (Sitka City and Borough) Kayak Islands
- (Madison County) Keene Island
- (Prince of Wales-Hyder Census Area) Keete Island
- (Madison County) Keku Islands