| Summerville, GA (City) |
| Summerville, SC (Town) |
| Summerville, OR (Town) |
| Summerville, PA (Borough) |
| Summerville Community Development District, FL (CDD) |
| Summit, NE (Township) |
| Summit, NE (Township) |
| Summit, MO (Township) |
| Summit, MS (Town) |
| Summit, ND (Township) |
| Summit, KS (Township) |
| Summit, KS (Township) |
| Summit, KS (Township) |
| Summit, SC (Town) |
| Summit, AR (City) |
