- Kesteloot's Trailer Court
- Kettle Falls
- Kettle River
- Kevin
- Key West
- Kiester
- Kilchlis Meadow
- Kilkenny
- Kimball
- Kimball Prairie
- Kimberly
- Kinbrae
- Kings Island
- Kingsdale
- Kingsley Corner
- Kingston
- Kingsway Estates
- Kinney
- Kirk
- Kirk Island
- Kistler Mobile Home Park
- Kitzville
- Kjellbergs Mobile Home Park
- Klondyke
- Klossner
- Knapp
- Knife Island
- Knife River
- Knight Island
- Knollwood Park