- Kimballs Mobile Home Park
- Knox
- Kenricksville
- Kauke
- Kalida
- Kelleys Island
- Kenton
- Kenwood
- Kettlersville
- Killbuck
- Kimbolton
- Kipton
- Kirby
- Kirkersville
- Kirtland
- Kirtland Hills
- Key Estates
- Keystone
- Keystone
- Kitchen
- Knoxville
- Kolmont
- Knox
- Kirtland Mobile Home Park
- Kingsleys Corners
- Kileville
- Kiousville
- King's Mobile Home Park
- Knaufville
- Kyles Corners