- Kylemore
- Knox
- Kempside
- Keenesville
- Klines Corner
- Kay - Lou Trailer Courts
- Kelleys
- Kishwaukee
- Kishwaukee Glen
- Kelley Corners
- Kennedy
- Kings Island
- Kernan
- Kingdom
- Katy Did
- Kilpatricks Mobile Home Park
- Kerrick
- Kumler
- Kaufman
- Kendall Hill
- Kuhn Station
- Kelsey
- Knapps Island
- Kirksville
- Kyte Side Estates
- Keller
- Kickapoo
- Kickapoo
- Kidd
- Kise Crossing