| Union Parish, LA (County) |
| Union Park Community Development District, FL (CDD) |
| Union Point, GA (City) |
| Union Prairie Township, IA (Township) |
| Union Springs, NY (Village) |
| Union Springs, AL (City) |
| Union Star, MO (City) |
| Union Town, WI (Town) |
| Union Town, WI (Town) |
| Union Town, WI (Town) |
| Union Town, WI (Town) |
| Union Town, WI (Town) |
| Union Town, WI (Town) |
| Union Town, WI (Town) |
| Union Township, PA (Township) |
