- Karlsfeld
- Karner
- Keefers Corners
- Kenwood
- Karrdale
- Knight Creek
- Kossuth
- Kings Bridge
- Kings Bridge Heights
- Kattellville
- Kintner Estates Mobile Home Park
- Kirkwood
- Kirkwood Center
- Kirkwood Mobile Home Court
- Knapp Creek
- Kelloggsville
- Kenyon Landing Mobile Home Park
- King Ferry Station
- Kabob
- Keaches Corners
- Kiantone
- Kimball Stand
- Kelsey Brook Trailer Court
- Kirk
- Keeney
- Kelly Corners
- Kelsey
- Kerry Siding
- Kerryville
- Kortright Center