South Mountain Pennsylvania Profile
| Place Name | South Mountain |
| Place Type | Unincorporated |
| ZIP Code(s) | 17222 |
| County | Franklin County |
| Area Code(s) | 223,717 |
| Timezone | Eastern Daylight Time (EDT) |
| Population () | |
| Metro/Micro Stats Area | Chambersburg-Waynesboro, PA |
| US Congressional District(s) | Pennsylvania 13th |
| State House Districts | 90 |
| State Senate Districts | 33 |