K
- Kankakee
- Kansas
- Kappa Corner
- Kasson
- Keller
- Kellerville
- Kempton
- Kendallville
- Kennard
- Kenneth
- Kent
- Kentland
- Kercheval
- Kersey
- Kewanna
- Keystone
- Kilmore
- Kimmell
- Kinder
- King
- Kingman
- Kingsbury
- Kingsford Heights
- Kingsland
- Kings Store
- Kingston
- Kinsey
- Kirby
- Kirklin
- Kirkpatrick
- Kirksville
- Kirschs Corner
- Kitchel
- Kitt
- Kitterman Corners
- Klassville
- Klondike
- Klondyke
- Knarr Corner
- Knight Ridge
- Knightstown
- Knightsville
- Kniman
- Knox
- Kokomo
- Koleen
- Koontz Lake
- Kossuth
- Kouts
- Kramer
- Kratzville
- Kreitzburg
- Kriete Corner
- Kurtz
- Kyana
- Kyle