| Kivalina, AK (City) |
| Klacking Township, MI (Township) |
| Klamath County, OR (County) |
| Klamath Falls, OR (City) |
| Klawock, AK (City) |
| Kleberg County, TX (County) |
| Klemme, IA (City) |
| Klickitat County, WA (County) |
| Kline, SC (Town) |
| Kline Township, PA (Township) |
| Klingstrup, ND (Township) |
| Knapp Town, WI (Town) |
| Knapp Village, WI (Village) |
| Knierim, IA (City) |
| Kniest Township, IA (Township) |
