| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| South Unadilla | city | New York | United States | 42.31 | -75.34 | 1036 | |
| South Union | city | Kentucky | United States | 36.88 | -86.66 | 830 | |
| South Union | city | Maine | United States | 44.20 | -69.26 | 150 | |
| South Union | city | Pennsylvania | United States | 41.57 | -77.00 | 1669 | |
| South Union | city | South Carolina | United States | 34.55 | -83.05 | 843 | |
| South Union | city | Washington | United States | 46.94 | -122.91 | 200 | |
| South Union Grove (historical) | city | Kentucky | United States | 38.64 | -85.25 | 830 | |
| South Uniontown | city | Pennsylvania | United States | 39.89 | -79.75 | 997 |