| Kolls, SD (Township) |
| Komensky Town, WI (Town) |
| Konawa, OK (City) |
| Koochiching County, MN (County) |
| Koosharem, UT (Town) |
| Kooskia, ID (City) |
| Kootenai, ID (City) |
| Kootenai County, ID (County) |
| Koppel, PA (Borough) |
| Kortright, NY (Town) |
| Kosciusko, MS (City) |
| Kosciusko, SD (Township) |
| Kosciusko County, IN (County) |
| Koshkonong, MO (City) |
| Koshkonong Town, WI (Town) |
