- K I Sawyer
- K. I. Sawyer AFB
- K. I. Sawyer Air Force Base
- Kaiserville
- Kalamazoo
- Kalamo
- Kaleva
- Kalkaska
- Kamloops Island
- Kampvilla Mobile Home Park
- Karlin
- Karrs Corner
- Katakitckon Indian Village
- Kauslers Island
- Kawkawlin
- Kearsarge
- Kearsley Lake Terrace Mobile Home Park
- Keego Harbor
- Keelans Corner
- Keeler
- Keewahdin
- Kelden
- Kells
- Kellys Corners
- Kelso Junction
- Kendall
- Kenneth
- Keno
- Kensington Meadows Mobile Home Park
- Kent City