| Union Prairie Township, IA (Township) |
| Union Springs, NY (Village) |
| Union Springs, AL (City) |
| Union Star, MO (City) |
| Union Township, IA (Township) |
| Union Township, IA (Township) |
| Union Township, IA (Township) |
| Union Township, IA (Township) |
| Union Township, IA (Township) |
| Union Township, IA (Township) |
| Union Township, IA (Township) |
| Union Township, IA (Township) |
| Union Township, IA (Township) |
| Union Township, IA (Township) |
| Union Township, IA (Township) |
