List of places in Pennsylvania: Sa–Si List of places in Pennsylvania: Sa–Si List of places in Pennsylvania: Sa–Si

| Name_of_place | Number_of_counties | Principal_county | Lower_zip_code | Upper_zip_code_ |
|---|---|---|---|---|
| Saginaw | 1 | York County | 17347 |  |
| Sagon | 1 | Northumberland County | 17872 |  |
| Sagon Junction | 1 | Northumberland County |  |  |
| St. Albans | 1 | Delaware County | 19073 |  |
| St. Augustine | 1 | Cambria County | 16636 |  |
| St. Benedict | 1 | Cambria County | 15773 |  |
| St. Boniface | 1 | Cambria County | 16675 |  |
| St. Charles | 1 | Clarion County | 16242 |  |
| St. Clair | 1 | Allegheny County |  |  |
| St. Clair | 1 | Schuylkill County | 17970 |  |
| St. Clair | 1 | Westmoreland County | 15601 |  |
| St. Clair Acres | 1 | Allegheny County | 15241 |  |
| St. Clair Township | 1 | Westmoreland County |  |  |
| St. Clairsville | 1 | Bedford County | 16667 |  |
| St. Davids | 1 | Delaware County | 19087 |  |
| St. George | 1 | Venango County | 16374 |  |
| St. Joe | 1 | Butler County |  |  |
| St. Johns | 1 | Luzerne County | 18247 |  |