# List of places in Pennsylvania: Sk–Sy

This list of cities, towns, unincorporated communities, counties, and other recognized places in the U.S. state of Pennsylvania also includes information on the number and names of counties in which the place lies, and its lower and upper zip code bounds, if applicable.
| Name of place | Number of counties | Principal county | Lower zip code | Upper zip code |
| Skelp | 1 | Blair County | 16601 | |
| Skeltontown | 1 | Crawford County | | |
| Skidmore | 1 | Lawrence County | 16101 | |
| Skinners Eddy | 1 | Wyoming County | 18623 | |
| Skippack | 1 | Montgomery County | 19474 | |
| Skippack Township | 1 | Montgomery County | | |
| Skyline Heights | 1 | York County | 17402 | |
| Skyline View | 1 | Dauphin County | 17112 | |
| Skytop | 1 | Monroe County | 18357 | |
| Slab | 1 | York County | | |
| Slabtown | 1 | Armstrong County | | |
| Slabtown | 1 | Clearfield County | 15724 | |
| Slabtown | 1 | Columbia County | | |
| Slabtown | 1 | Franklin County | 17368 | |
| Slackwater | 1 | Lancaster County | 17551 | |
| Slate Hill | 1 | York County | 17314 | |
| Slate Lick | 1 | Armstrong County | 16229 | |
| Slate Ridge | 1 | Adams County | | |
| Slate Run | 1 | Lycoming County | 17769 | |
| Slate Valley | 1 | Northampton County | 18038 | |
| Slatedale | 1 | Lehigh County | 18079 | |
| Slatefield | 1 | Northampton County | 18038 | |
| Slateford | 1 | Northampton County | 18343 | |
| Slateville | 1 | Lehigh County | 19529 | |
| Slatington | 1 | Lehigh County | 18080 | |
| Slickport | 1 | Cambria County | 16646 | |
| Slickville | 1 | Westmoreland County | 15684 | |
| Sligo | 1 | Allegheny County | 15065 | |
| Sligo | 1 | Clarion County | 16255 | |
| Slippery Rock | 1 | Butler County | 16057 | |
| Slippery Rock Park | 1 | Butler County | 16057 | |
| Slippery Rock Township | 1 | Butler County | | |
| Slippery Rock Township | 1 | Lawrence County | | |
| Slocum | 1 | Luzerne County | | |
| Slocum Corners | 1 | Luzerne County | 18660 | |
| Slocum Township | 1 | Luzerne County | | |
| Slonaker | 1 | Chester County | | |
| Slovan | 1 | Washington County | 15078 | |
| Smallwood | 1 | Washington County | 15423 | |
| Smeltzer | 1 | Armstrong County | | |
| Smethport | 1 | McKean County | 16749 | |
| Smicksburg | 1 | Indiana County | 16256 | |
| Smiley | 1 | Fayette County | 15401 | |
| Smiley | 1 | Susquehanna County | | |
| Smith | 1 | Indiana County | | |
| Smith Bridge | 1 | Greene County | 15380 | |
| Smith Corners | 1 | Venango County | | |
| Smith Gap | 1 | Monroe County | | |
| Smith Gardens | 1 | York County | 17345 | |
| Smith Summit | 1 | Jefferson County | | |
| Smith Township | 1 | Washington County | | |
| Smithdale | 1 | Allegheny County | 15089 | |
| Smithfield | 1 | Fayette County | 15478 | |
| Smithfield | 1 | Huntingdon County | 16652 | |
| Smithfield Center | 1 | Huntingdon County | 16652 | |
| Smithfield Township | 1 | Bradford County | | |
| Smithfield Township | 1 | Huntingdon County | | |
| Smithfield Township | 1 | Monroe County | | |
| Smithland | 1 | Clarion County | 16242 | |
| Smithmill | 1 | Clearfield County | 16680 | |
| Smithport | 1 | Indiana County | 15742 | |
| Smiths | 1 | York County | 17362 | |
| Smiths Corner | 1 | Bucks County | 18950 | |
| Smiths Ferry | 1 | Beaver County | 15059 | |
| Smiths Station | 1 | York County | | |
| Smithton | 1 | Westmoreland County | 15479 | |
| Smithtown | 1 | Bucks County | 18947 | |
| Smithtown | 1 | Jefferson County | 15840 | |
| Smithville | 1 | Lancaster County | 17560 | |
| Smock | 1 | Fayette County | 15480 | |
| Smoke Run | 1 | Clearfield County | | |
| Smokeless | 1 | Indiana County | 15944 | |
| Smokerun | 1 | Clearfield County | 16681 | |
| Smoketown | 1 | Bucks County | 18951 | |
| Smoketown | 1 | Franklin County | 17201 | |
| Smoketown | 1 | Lancaster County | 17576 | |
| Smoketown | 1 | Northampton County | | |
| Smullton | 1 | Centre County | 16854 | |
| Smyerstown | 1 | Indiana County | 15772 | |
| Smyrna | 1 | Lancaster County | 17509 | |
| Smyser | 1 | York County | | |
| Snake Spring Township | 1 | Bedford County | | |
| Snedekerville | 1 | Bradford County | 16914 | |
| Snively Corners | 1 | Clarion County | 16232 | |
| Snow Shoe | 1 | Centre County | 16874 | |
| Snow Shoe Township | 1 | Centre County | | |
| Snowball Gate | 1 | Bucks County | 19058 | |
| Snowden | 1 | Allegheny County | 15129 | |
| Snowden Township | 1 | Allegheny County | | |
| Snowdenville | 1 | Chester County | 19475 | |
| Snows Mill | 1 | Susquehanna County | | |
| S.N.P.J. | 1 | Lawrence County | 16120 | |
| Snyder Corner | 1 | York County | 17356 | |
| Snyder Township | 1 | Blair County | | |
| Snyder Township | 1 | Jefferson County | | |
| Snyders | 1 | Schuylkill County | 17960 | |
| Snydersburg | 1 | Clarion County | 16257 | |
| Snydersville | 1 | Monroe County | 18360 | |
| Snydertown | 1 | Centre County | 16841 | |
| Snydertown | 1 | Fayette County | 15425 | |
| Snydertown | 1 | Huntingdon County | | |
| Snydertown | 1 | Northumberland County | 17877 | |
| Snydertown | 1 | Westmoreland County | 15620 | |
| Snyderville | 1 | Armstrong County | 16222 | |
| Sober | 1 | Centre County | 16875 | |
| Social Island | 1 | Franklin County | | |
| Soho | 1 | Allegheny County | | |
| Soldier | 1 | Jefferson County | 15851 | |
| Solebury | 1 | Bucks County | 18963 | |
| Solebury Township | 1 | Bucks County | | |
| Solebury Village | 1 | Bucks County | | |
| Solomon Gap | 1 | Luzerne County | 18707 | |
| Somerfield | 1 | Somerset County | | |
| Somers | 1 | Westmoreland County | | |
| Somers Lane | 1 | Tioga County | 16929 | |
| Somerset | 1 | Somerset County | 15501 | |
| Somerset Township | 1 | Somerset County | | |
| Somerset Township | 1 | Washington County | | |
| Somerton | 1 | Philadelphia County | 19116 | |
| Somerville | 1 | Armstrong County | 16028 | |
| Sonestown | 1 | Sullivan County | 17770 | |
| Sonman | 1 | Cambria County | 15946 | |
| Sopertown | 1 | Bradford County | | |
| Soradoville | 1 | Mifflin County | 17841 | |
| Soudersburg | 1 | Lancaster County | 17577 | |
| Souderton | 1 | Montgomery County | 18964 | |
| Soukesburg | 1 | Cambria County | 15956 | |
| South Abington Township | 1 | Lackawanna County | | |
| South Altoona | 1 | Blair County | | |
| South Annville Township | 1 | Lebanon County | | |
| South Ardmore | 1 | Delaware County | 19083 | |
| South Auburn | 1 | Susquehanna County | 18630 | |
| South Beaver Township | 1 | Beaver County | | |
| South Bend | 1 | Armstrong County | 15774 | |
| South Bend Township | 1 | Armstrong County | | |
| South Bethlehem | 1 | Armstrong County | 16242 | |
| South Bradford | 1 | McKean County | 16701 | |
| South Branch | 1 | Bradford County | | |
| South Brownsville | 1 | Fayette County | | |
| South Buffalo Township | 1 | Armstrong County | | |
| South Burgettstown | 1 | Washington County | 15021 | |
| South Canaan | 1 | Wayne County | 18459 | |
| South Canaan Township | 1 | Wayne County | | |
| South Carnegie | 1 | Allegheny County | 15106 | |
| South Centre Township | 1 | Columbia County | | |
| South Chester | 1 | Delaware County | | |
| South Clarksville | 1 | Greene County | 15322 | |
| South Clearfield | 1 | Clearfield County | 16830 | |
| South Coatesville | 1 | Chester County | 19320 | |
| South Connellsville | 1 | Fayette County | 15425 | |
| South Coventry Township | 1 | Chester County | | |
| South Creek Township | 1 | Bradford County | | |
| South Danville | 1 | Northumberland County | | |
| South Duquesne | 1 | Allegheny County | 15110 | |
| South Easton | 1 | Northampton County | 18042 | |
| South Eaton | 1 | Wyoming County | 18657 | |
| South Enola | 1 | Cumberland County | 17025 | |
| South Erie | 1 | Erie County | 16508 | |
| South Fayette Township | 1 | Allegheny County | | |
| South Fork | 1 | Cambria County | 15956 | |
| South Franklin Township | 1 | Washington County | | |
| South Gibson | 1 | Susquehanna County | 18842 | |
| South Greensburg | 1 | Westmoreland County | 15601 | |
| South Hanover Township | 1 | Dauphin County | | |
| South Heidelberg Township | 1 | Berks County | | |
| South Heights | 1 | Beaver County | 15081 | |
| South Hermitage | 1 | Lancaster County | 17555 | |
| South Hill | 1 | Bradford County | | |
| South Hills | 1 | Allegheny County | 15216 | |
| South Huntingdon | 1 | Huntingdon County | | |
| South Huntingdon Township | 1 | Westmoreland County | | |
| South Lakemont | 1 | Blair County | 16602 | |
| South Langhorne | 1 | Bucks County | | |
| South Lebanon Township | 1 | Lebanon County | | |
| South Londonderry Township | 1 | Lebanon County | | |
| South Mahoning Township | 1 | Indiana County | | |
| South Manheim Township | 1 | Schuylkill County | | |
| South Meadville | 1 | Crawford County | 16335 | |
| South Media | 1 | Delaware County | 19063 | |
| South Middleton Township | 1 | Cumberland County | | |
| South Montrose | 1 | Susquehanna County | 18843 | |
| South Mountain | 1 | Berks County | | |
| South Mountain | 1 | Franklin County | 17261 | |
| South New Castle | 1 | Lawrence County | 16101 | |
| South Newton Township | 1 | Cumberland County | | |
| South Oil City | 1 | Venango County | 16301 | |
| South Park Township | 1 | Allegheny County | | |
| South Perkasie | 1 | Bucks County | 18944 | |
| South Philipsburg | 1 | Centre County | 16866 | |
| South Pottstown | 1 | Chester County | 19464 | |
| South Pymatuning Township | 1 | Mercer County | | |
| South Renovo | 1 | Clinton County | 17764 | |
| South Rockwood | 1 | Somerset County | | |
| South Shenango Township | 1 | Crawford County | | |
| South Side | 1 | Allegheny County | | |
| South Side | 1 | Lackawanna County | 18505 | |
| South Sterling | 1 | Wayne County | 18460 | |
| South Strabane | 1 | Washington County | | |
| South Strabane Township | 1 | Washington County | | |
| South Tamaqua | 1 | Schuylkill County | 18252 | |
| South Temple | 1 | Berks County | 19560 | |
| South Terrace | 1 | Northampton County | | |
| South Towanda | 1 | Bradford County | 18848 | |
| South Union | 1 | Tioga County | | |
| South Union Township | 1 | Fayette County | | |
| South Uniontown | 1 | Fayette County | 15401 | |
| South Versailles Township | 1 | Allegheny County | | |
| South Warren | 1 | Bradford County | | |
| South Waverly | 1 | Bradford County | 14892 | |
| South Whitehall Township | 1 | Lehigh County | | |
| South Wilkes-Barre | 1 | Luzerne County | | |
| South Williamsport | 1 | Lycoming County | 17701 | |
| South Woodbury Township | 1 | Bedford County | | |
| Southampton | 1 | Bucks County | 18966 | |
| Southampton Township | 1 | Bedford County | | |
| Southampton Township | 1 | Cumberland County | | |
| Southampton Township | 1 | Franklin County | | |
| Southampton Township | 1 | Somerset County | | |
| Southdale | 1 | Luzerne County | 18655 | |
| Southeastern | 1 | Chester County | 19399 | |
| Southeastern Facility | 1 | Chester County | 19397 | 98 |
| Southerwood | 1 | Westmoreland County | 15610 | |
| Southmont | 1 | Cambria County | 15905 | |
| Southside | 1 | Northampton County | 18015 | |
| Southside | 1 | York County | | |
| Southview | 1 | Washington County | 15361 | |
| Southwark | 1 | Philadelphia County | 19147 | |
| Southwest | 1 | Westmoreland County | 15685 | |
| Southwest Greensburg | 1 | Westmoreland County | 15601 | |
| Southwest Madison Township | 1 | Perry County | | |
| Southwest Township | 1 | Warren County | | |
| Southwood Hills | 1 | York County | 17403 | |
| Sowash | 1 | Westmoreland County | | |
| Spaces Corners | 1 | Armstrong County | | |
| Spaces Corners | 1 | Clarion County | | |
| Spangler | 1 | Cambria County | 15775 | |
| Spangsville | 1 | Berks County | 19512 | |
| Sparta | 1 | Washington County | 15329 | |
| Sparta Township | 1 | Crawford County | | |
| Spartansburg | 1 | Crawford County | 16434 | |
| Spears Grove | 1 | Juniata County | 17021 | |
| Spechty Kopf | 1 | Dauphin County | | |
| Speeceville | 1 | Dauphin County | | |
| Speedwell | 1 | Lancaster County | 17543 | |
| Speers | 1 | Washington County | 15012 | |
| Spencers Corners | 1 | Lackawanna County | | |
| Spencertown | 1 | Tioga County | | |
| Spike Island | 1 | Centre County | 16666 | |
| Spike Island | 1 | Lackawanna County | 18507 | |
| Split Rock | 1 | Carbon County | | |
| Spindletown | 1 | Jefferson County | | |
| Spindley City | 1 | Cambria County | 16641 | |
| Spinnerstown | 1 | Bucks County | 18968 | |
| Split Rock | 1 | Carbon County | 18624 | |
| Sporting Hill | 1 | Cumberland County | 17055 | |
| Sporting Hill | 1 | Lancaster County | 17545 | |
| Sportsburg | 1 | Jefferson County | 15767 | |
| Spraggs | 1 | Greene County | 15362 | |
| Sprankle Mills | 1 | Jefferson County | 15776 | |
| Spring Bank | 1 | Centre County | 16854 | |
| Spring Brook | 1 | Lackawanna County | | |
| Spring Brook Township | 1 | Lackawanna County | | |
| Spring Church | 1 | Armstrong County | 15686 | |
| Spring City | 1 | Chester County | 19475 | |
| Spring Creek | 1 | Lehigh County | 18011 | |
| Spring Creek | 1 | Warren County | 16436 | |
| Spring Creek Township | 1 | Elk County | | |
| Spring Creek Township | 1 | Warren County | | |
| Spring Garden | 1 | Allegheny County | | |
| Spring Garden | 1 | Bucks County | 18940 | |
| Spring Garden | 1 | Lancaster County | 17535 | |
| Spring Garden | 1 | Philadelphia County | 19122 | |
| Spring Garden | 1 | Schuylkill County | 17972 | |
| Spring Garden | 1 | Union County | 17810 | |
| Spring Garden | 1 | Westmoreland County | 15666 | |
| Spring Garden | 1 | York County | 17403 | |
| Spring Garden Township | 1 | York County | | |
| Spring Glen | 1 | Schuylkill County | 17978 | |
| Spring Grove | 1 | York County | 17362 | |
| Spring Hill | 1 | Allegheny County | | |
| Spring Hill | 1 | Bradford County | 18853 | |
| Spring Hill | 1 | Cambria County | 15946 | |
| Spring Hill | 1 | Delaware County | 19018 | |
| Spring House | 1 | Montgomery County | 19477 | |
| Spring Meadow | 1 | Bedford County | | |
| Spring Mill | 1 | Montgomery County | 19428 | |
| Spring Mills | 1 | Centre County | 16875 | |
| Spring Mount | 1 | Huntingdon County | 16877 | |
| Spring Mount | 1 | Montgomery County | 19478 | |
| Spring Plains | 1 | York County | | |
| Spring Ridge | 1 | Berks County | | |
| Spring Run | 1 | Franklin County | 17262 | |
| Spring Township | 1 | Berks County | | |
| Spring Township | 1 | Centre County | | |
| Spring Township | 1 | Crawford County | | |
| Spring Township | 1 | Perry County | | |
| Spring Township | 1 | Snyder County | | |
| Spring Valley | 1 | Berks County | 19560 | |
| Spring Valley | 1 | Bucks County | 18901 | |
| Spring Valley | 1 | Clearfield County | 16878 | |
| Spring Valley | 1 | Northampton County | 18015 | |
| Spring Valley Estates | 1 | Franklin County | 17201 | |
| Springboro | 1 | Crawford County | 16435 | |
| Springdale | 1 | Allegheny County | 15144 | |
| Springdale | 1 | York County | | |
| Springdale Township | 1 | Allegheny County | | |
| Springdell | 1 | Chester County | 19320 | |
| Springetts Manor-Yorklyn | 1 | York County | | |
| Springettsbury Township | 1 | York County | | |
| Springfield | 1 | Bradford County | 16914 | |
| Springfield | 1 | Cumberland County | 17241 | |
| Springfield | 1 | Delaware County | 19064 | |
| Springfield | 1 | Erie County | | |
| Springfield Falls | 1 | Mercer County | | |
| Springfield Junction | 1 | Blair County | | |
| Springfield Park | 1 | Delaware County | 19064 | |
| Springfield Township | 1 | Bradford County | | |
| Springfield Township | 1 | Bucks County | | |
| Springfield Township | 1 | Delaware County | | |
| Springfield Township | 1 | Erie County | | |
| Springfield Township | 1 | Fayette County | | |
| Springfield Township | 1 | Huntingdon County | | |
| Springfield Township | 1 | Mercer County | | |
| Springfield Township | 1 | Montgomery County | | |
| Springfield Township | 1 | York County | | |
| Springhaven | 1 | Lebanon County | | |
| Springhaven Estates | 1 | Delaware County | 19086 | |
| Springhill Township | 1 | Fayette County | | |
| Springhill Township | 1 | Greene County | | |
| Springhope | 1 | Bedford County | 15559 | |
| Springlawn | 1 | Chester County | | |
| Springmont | 1 | Berks County | 19609 | |
| Springs | 1 | Somerset County | 15562 | |
| Springton | 1 | Chester County | | |
| Springtown | 1 | Bucks County | 18081 | |
| Springtown | 1 | Franklin County | 17221 | |
| Springtown | 1 | Luzerne County | 18707 | |
| Springtown | 1 | Northumberland County | 17777 | |
| Springvale | 1 | York County | 17356 | |
| Springville | 1 | Cumberland County | 17007 | |
| Springville | 1 | Lancaster County | 17535 | |
| Springville | 1 | Susquehanna County | 18844 | |
| Springville | 1 | Venango County | 16342 | |
| Springville Township | 1 | Susquehanna County | | |
| Sproul | 1 | Blair County | 16682 | |
| Spruce | 1 | Clinton County | | |
| Spruce | 1 | Huntingdon County | | |
| Spruce | 1 | Indiana County | | |
| Spruce Creek | 1 | Huntingdon County | 16683 | |
| Spruce Creek Township | 1 | Huntingdon County | | |
| Spruce Grove | 1 | Lancaster County | | |
| Spruce Hill | 1 | Juniata County | 17082 | |
| Spruce Hill Township | 1 | Juniata County | | |
| Spruces | 1 | Chester County | | |
| Sprucetown | 1 | Fayette County | 15474 | |
| Spry | 1 | York County | 17402 | |
| Squab Hollow | 1 | Elk County | | |
| Square Corner | 1 | Adams County | 17325 | |
| Squirrel Hill | 1 | Allegheny County | 15217 | |
| Squirrel Hill | 1 | Clarion County | | |
| Staab | 1 | Clarion County | | |
| Stacktown | 1 | Lancaster County | 17502 | |
| Stafore Estates | 1 | Northampton County | 18017 | |
| Stahlstown | 1 | Westmoreland County | 15687 | |
| Stairville | 1 | Luzerne County | 18660 | |
| Stalker | 1 | Wayne County | 12741 | |
| Stambaugh | 1 | Fayette County | 15456 | |
| Standard | 1 | Westmoreland County | 15666 | |
| Standard Shaft | 1 | Westmoreland County | 15666 | |
| Standing Stone | 1 | Bradford County | 18854 | |
| Standing Stone Township | 1 | Bradford County | | |
| Stanfordville | 1 | Susquehanna County | | |
| Stanhope | 1 | Schuylkill County | 17963 | |
| Stanley | 1 | Clearfield County | 15801 | |
| Stanleys Corner | 1 | Venango County | | |
| Stanton | 1 | Jefferson County | 15825 | |
| Stanton | 1 | Luzerne County | | |
| Stanton Heights | 1 | Allegheny County | | |
| Stanton Heights | 1 | Westmoreland County | 15672 | |
| Stanwood | 1 | Bucks County | | |
| Stanwood Gardens | 1 | Bucks County | 19020 | |
| Star Junction | 1 | Fayette County | 15482 | |
| Star Village | 1 | Northampton County | | |
| Starbrick | 1 | Warren County | 16365 | |
| Starford | 1 | Indiana County | 15777 | |
| Starks | 1 | Lackawanna County | 18507 | |
| Starkville | 1 | Wyoming County | 18446 | |
| Starlight | 1 | Wayne County | 18461 | |
| Starners | 1 | Cumberland County | | |
| Starners Station | 1 | Cumberland County | 17324 | |
| Starr | 1 | Forest County | 16353 | |
| Starr | 1 | Warren County | 16420 | |
| Starrucca | 1 | Susquehanna County | | |
| Starrucca | 1 | Wayne County | 18462 | |
| Starview | 1 | York County | 17347 | |
| Starview-Waterford | 1 | York County | | |
| State College | 1 | Centre County | 16801 | 05 |
| State Hill | 1 | Berks County | 19608 | |
| State Hill | 1 | Chester County | 17527 | |
| State Line | 1 | Bedford County | 15545 | |
| State Line | 1 | Erie County | 16428 | |
| State Line | 1 | Franklin County | 17263 | |
| Steam Valley | 1 | Lycoming County | | |
| Steamburg | 1 | Crawford County | 16424 | |
| Steel City | 1 | Northampton County | 18015 | |
| Steelstown | 1 | Lebanon County | 17003 | |
| Steelton | 1 | Dauphin County | 17113 | |
| Steelville | 1 | Chester County | 19370 | |
| Steene | 1 | Wayne County | 18472 | |
| Steffins Hill | 1 | Beaver County | 15010 | |
| Steins | 1 | Schuylkill County | | |
| Steinsburg | 1 | Bucks County | 18951 | |
| Steinsville | 1 | Lehigh County | 19529 | |
| Stemlersville | 1 | Carbon County | 18235 | |
| Stenton | 1 | Philadelphia County | | |
| Sterling | 1 | Clearfield County | 16651 | |
| Sterling | 1 | Wayne County | 18463 | |
| Sterling Run | 1 | Cameron County | 15832 | |
| Sterling Township | 1 | Wayne County | | |
| Sterlingworth | 1 | Lehigh County | 18104 | |
| Sterrettania | 1 | Erie County | 16415 | |
| Stetlersville | 1 | Lehigh County | | |
| Steuben | 1 | Lycoming County | | |
| Steuben | 1 | Northampton County | | |
| Steuben Township | 1 | Crawford County | | |
| Stevens | 1 | Lancaster County | 17578 | |
| Stevens Point | 1 | Susquehanna County | 18847 | |
| Stevens Township | 1 | Bradford County | | |
| Stevenson | 1 | Bradford County | | |
| Stevenstown | 1 | York County | 17019 | |
| Stevensville | 1 | Bradford County | 18845 | |
| Stewardson Township | 1 | Potter County | | |
| Stewart Run | 1 | Forest County | 16341 | |
| Stewart Township | 1 | Fayette County | | |
| Stewarton | 1 | Fayette County | | |
| Stewartstown | 1 | York County | 17363 | |
| Stewartsville | 1 | Westmoreland County | 15642 | |
| Stewartville | 1 | Crawford County | | |
| Stickel | 1 | Fayette County | | |
| Stickney | 1 | McKean County | 16701 | |
| Sticks | 1 | York County | 17329 | |
| Stier | 1 | Northampton County | 18013 | |
| Stifflertown | 1 | Clearfield County | 15724 | |
| Stiles | 1 | Lehigh County | 18052 | |
| Still Creek | 1 | Schuylkill County | 18252 | |
| Stilleys Siding | 1 | Allegheny County | 15025 | |
| Stillwater | 1 | Columbia County | 17878 | |
| Stillwater Lake Estates | 1 | Monroe County | 18346 | |
| Stiltz | 1 | York County | 17327 | |
| Stines Corner | 1 | Lehigh County | 18066 | |
| Stobo | 1 | Beaver County | 15061 | |
| Stockdale | 1 | Washington County | 15483 | |
| Stockertown | 1 | Northampton County | 18083 | |
| Stockport | 1 | Wayne County | | |
| Stockton | 1 | Luzerne County | 18201 | |
| Stockton Number 6 | 1 | Luzerne County | 18201 | |
| Stockton Number 7 | 1 | Luzerne County | 18201 | |
| Stockton Number 8 | 1 | Luzerne County | 18201 | |
| Stoddartsville | 2 | Luzerne County | 18610 | |
| Stoddartsville | 2 | Monroe County | 18610 | |
| Stokesdale | 1 | Tioga County | 16901 | |
| Stone Church | 1 | Northampton County | 18343 | |
| Stone Glen | 1 | Dauphin County | 17018 | |
| Stone Hill | 1 | Lancaster County | 17516 | |
| Stone House | 1 | Clarion County | | |
| Stone Row | 1 | Bedford County | 16650 | |
| Stoneboro | 1 | Mercer County | 16153 | |
| Stonedale | 1 | Allegheny County | | |
| Stoneham | 1 | Warren County | 16313 | |
| Stonehurst | 1 | Bucks County | 18966 | |
| Stonehurst | 1 | Delaware County | 19082 | |
| Stonehurst Hills | 1 | Delaware County | 19082 | |
| Stonemont | 1 | Schuylkill County | | |
| Stoner | 1 | York County | | |
| Stonerstown | 1 | Bedford County | 16678 | |
| Stonersville | 1 | Berks County | 19508 | |
| Stonerville | 1 | Fayette County | | |
| Stonetown | 1 | Berks County | 19508 | |
| Stonevilla | 1 | Westmoreland County | 15601 | |
| Stoneybreak | 1 | Fulton County | 17267 | |
| Stonington | 1 | Northumberland County | 17801 | |
| Stony Creek | 1 | Schuylkill County | | |
| Stony Creek Mills | 1 | Berks County | 19606 | |
| Stony Fork | 1 | Tioga County | 16901 | |
| Stony Point | 1 | Berks County | | |
| Stony Point | 1 | Bucks County | 18930 | |
| Stony Point | 1 | Crawford County | 16316 | |
| Stony Point | 1 | Franklin County | 17262 | |
| Stony Point | 1 | Greene County | 15344 | |
| Stony Point | 1 | Perry County | 17047 | |
| Stony Run | 1 | Berks County | 19557 | |
| Stony Run | 1 | Juniata County | | |
| Stonybreak | 1 | Fulton County | 17267 | |
| Stonybrook | 1 | Bucks County | | |
| Stonybrook | 1 | York County | 17402 | |
| Stonybrook Heights | 1 | York County | 17402 | |
| Stonybrook-Wilshire | 1 | York County | | |
| Stonycreek | 1 | Cambria County | 15906 | |
| Stonycreek Township | 1 | Cambria County | | |
| Stonycreek Township | 1 | Somerset County | | |
| Stoopville | 1 | Bucks County | 18940 | |
| Storage | 1 | Allegheny County | | |
| Stormstown | 1 | Centre County | 16870 | |
| Stormville | 1 | Monroe County | 18360 | |
| Stottsville | 1 | Chester County | 19367 | |
| Stouchsburg | 1 | Berks County | 19567 | |
| Stoufferstown | 1 | Franklin County | 17201 | |
| Stoughstown | 1 | Cumberland County | 17257 | |
| Stoughton | 1 | Somerset County | | |
| Stouts | 1 | Northampton County | | |
| Stover | 1 | Huntingdon County | 16686 | |
| Stoverdale | 1 | Dauphin County | 17036 | |
| Stovers Mill | 1 | Clarion County | | |
| Stoverstown | 1 | York County | 17362 | |
| Stowe | 1 | Allegheny County | 15136 | |
| Stowe | 1 | Montgomery County | 19464 | |
| Stowe Township | 1 | Allegheny County | | |
| Stowell | 1 | Wyoming County | 18623 | |
| Stoyestown | 1 | Somerset County | | |
| Stoystown | 1 | Somerset County | 15563 | |
| Straban Township | 1 | Adams County | | |
| Strabane | 1 | Washington County | 15363 | |
| Strafford | 1 | Chester County | 19087 | |
| Straight Creek | 1 | Elk County | | |
| Strangford | 1 | Indiana County | 15717 | |
| Strasburg | 1 | Lancaster County | 17579 | |
| Strasburg Township | 1 | Lancaster County | | |
| Strattanville | 1 | Clarion County | 16258 | |
| Strattonville | 1 | Clarion County | | |
| Strausstown | 1 | Berks County | 19559 | |
| Straw Pump | 1 | Westmoreland County | 15642 | |
| Strawberry Ridge | 1 | Montour County | 17821 | |
| Strawbridge | 1 | Lycoming County | 17758 | |
| Strawntown | 1 | Bucks County | | |
| Street Road | 1 | Bucks County | | |
| Streights | 1 | Elk County | | |
| Stremmels | 1 | Adams County | 17325 | |
| Strickersville | 1 | Chester County | 19711 | |
| Strickhousers | 1 | York County | 17360 | |
| Strickler | 1 | York County | | |
| Stricklerstown | 1 | Lebanon County | 17073 | |
| Strinestown | 1 | York County | 17345 | |
| Stringtown | 1 | Armstrong County | 16226 | |
| Stringtown | 1 | Bedford County | | |
| Stringtown | 1 | Greene County | 15320 | |
| Strobleton | 1 | Clarion County | 16353 | |
| Strodes Mills | 1 | Mifflin County | 17044 | |
| Stronach | 1 | Clearfield County | 16833 | |
| Strong | 1 | Northumberland County | 17851 | |
| Strongstown | 1 | Indiana County | 15957 | |
| Stroud Township | 1 | Monroe County | | |
| Stroudsburg | 1 | Monroe County | 18360 | |
| Stroudsburg West | 1 | Monroe County | 18360 | |
| Struble | 1 | Centre County | | |
| Strum | 1 | Fayette County | 15478 | |
| Studa | 1 | Washington County | 15312 | |
| Stull | 1 | Wyoming County | 18636 | |
| Stump Creek | 1 | Jefferson County | 15863 | |
| Stumptown | 1 | Clearfield County | 16666 | |
| Stumptown | 1 | Lancaster County | | |
| Sturgeon | 1 | Allegheny County | 15082 | |
| Sturgeon-Noblestown | 1 | Allegheny County | | |
| Sturges | 1 | Lackawanna County | 18447 | |
| Suburban Village | 1 | Chester County | 19380 | |
| Sudan | 1 | Washington County | | |
| Suedburg | 1 | Schuylkill County | 17963 | |
| Sugar Grove | 1 | Warren County | 16350 | |
| Sugar Grove Township | 1 | Mercer County | | |
| Sugar Grove Township | 1 | Warren County | | |
| Sugar Hill | 1 | Jefferson County | 15824 | |
| Sugar Hill | 1 | Washington County | | |
| Sugar Notch | 1 | Luzerne County | 18706 | |
| Sugar Run | 1 | Bradford County | 18846 | |
| Sugarcreek | 1 | Venango County | 16323 | |
| Sugarcreek Township | 1 | Armstrong County | | |
| Sugargrove | 1 | Warren County | 16350 | |
| Sugarloaf Township | 1 | Columbia County | | |
| Sugarloaf Township | 1 | Luzerne County | 18249 | |
| Sugartown | 1 | Chester County | 19355 | |
| Sulger | 1 | Jefferson County | | |
| Sullivan | 1 | Fayette County | 15445 | |
| Sullivan Township | 1 | Tioga County | | |
| Sulphur Springs | 1 | Bedford County | | |
| Sulphur Springs | 1 | Perry County | 17020 | |
| Sumerson | 1 | Elk County | | |
| Summer Hill | 1 | Columbia County | 18603 | |
| Summerdale | 1 | Cumberland County | 17093 | |
| Summerdale | 1 | Philadelphia County | | |
| Summerdale Plaza | 1 | Cumberland County | 17025 | |
| Summerhill | 1 | Cambria County | 15958 | |
| Summerhill | 1 | Lancaster County | | |
| Summerhill Township | 1 | Cambria County | | |
| Summerhill Township | 1 | Crawford County | | |
| Summerville | 1 | Jefferson County | 15864 | |
| Summerville | 1 | Susquehanna County | 18822 | |
| Summit | 1 | Cambria County | 16630 | |
| Summit | 1 | McKean County | 16701 | |
| Summit Grove Camp | 1 | York County | 17349 | |
| Summit Hill | 1 | Carbon County | 18250 | |
| Summit Lawn | 1 | Lehigh County | 18103 | |
| Summit Mills | 1 | Somerset County | 15552 | |
| Summit Station | 1 | Schuylkill County | 17979 | |
| Summit Township | 1 | Butler County | | |
| Summit Township | 1 | Crawford County | | |
| Summit Township | 1 | Erie County | | |
| Summit Township | 1 | Potter County | | |
| Summit Township | 1 | Somerset County | | |
| Sumneytown | 1 | Montgomery County | 18084 | |
| Sun Valley | 1 | Monroe County | 18330 | |
| Sun Village | 1 | Delaware County | 19013 | |
| Sunbeam | 1 | Franklin County | 17201 | |
| Sunbrook | 1 | Blair County | 16635 | |
| Sunbury | 1 | Northumberland County | 17801 | |
| Suncliff | 1 | Indiana County | | |
| Sundale | 1 | Bucks County | 18920 | |
| Sunderlinville | 1 | Potter County | 16943 | |
| Sunflower | 1 | Beaver County | | |
| Sunny Rest Lodge | 1 | Carbon County | | |
| Sunny Side | 1 | Allegheny County | 15063 | |
| Sunny Side | 1 | Bedford County | | |
| Sunnybrook | 1 | Montgomery County | 19075 | |
| Sunnybrook Estates | 1 | Delaware County | 19074 | |
| Sunnyburn | 1 | York County | 17302 | |
| Sunnyside | 1 | Armstrong County | | |
| Sunnyside | 1 | Lancaster County | | |
| Sunnyside | 1 | Lawrence County | 16101 | |
| Sunnyside | 1 | Lebanon County | 17042 | |
| Sunnyside | 1 | Northumberland County | 17872 | |
| Sunnyside | 1 | Potter County | | |
| Sunol | 1 | Mercer County | | |
| Sunset | 1 | Lebanon County | | |
| Sunset Hills | 1 | Beaver County | 15001 | |
| Sunset Manor | 1 | York County | 17405 | |
| Sunset Pines | 1 | Clinton County | 17745 | |
| Sunset Valley | 1 | Lawrence County | | |
| Sunset Valley | 1 | Westmoreland County | 15642 | |
| Sunshine | 1 | Fayette County | 15460 | |
| Sunshine | 1 | Luzerne County | 18655 | |
| Sunville | 1 | Venango County | 16317 | |
| Superior | 1 | Allegheny County | | |
| Superior | 1 | Fayette County | 15417 | |
| Superior | 1 | Westmoreland County | 15627 | |
| Suplee | 1 | Chester County | 19371 | |
| Surrey Hills | 1 | Delaware County | 19073 | |
| Surveyor | 1 | Clearfield County | 16830 | |
| Suscon | 1 | Luzerne County | 18641 | |
| Susquehanna | 1 | Susquehanna County | 18847 | |
| Susquehanna Bridge | 1 | Clearfield County | 16830 | |
| Susquehanna Depot | 1 | Susquehanna County | 18847 | |
| Susquehanna Township | 1 | Cambria County | | |
| Susquehanna Township | 1 | Dauphin County | | |
| Susquehanna Township | 1 | Juniata County | | |
| Susquehanna Township | 1 | Lycoming County | | |
| Susquehanna Trails | 1 | York County | | |
| Suter | 1 | Westmoreland County | | |
| Sutersville | 1 | Westmoreland County | 15083 | |
| Suterville | 1 | Westmoreland County | 15083 | |
| Sutton | 1 | Clarion County | | |
| Sutton Mill | 1 | Venango County | | |
| Swales | 1 | Juniata County | 17049 | |
| Swamproot | 1 | Mercer County | | |
| Swan Acres | 1 | Allegheny County | 15237 | |
| Swanville | 1 | Erie County | | |
| Swart | 1 | Greene County | 15364 | |
| Swarthmore | 1 | Delaware County | 19081 | |
| Swarthmorwood | 1 | Delaware County | 19081 | |
| Swartzville | 1 | Lancaster County | 17569 | |
| Swatara | 1 | Dauphin County | 17111 | |
| Swatara | 1 | Schuylkill County | 17981 | |
| Swatara Crest | 1 | Dauphin County | | |
| Swatara Station | 1 | Dauphin County | 17033 | |
| Swatara Township | 1 | Dauphin County | | |
| Swatara Township | 1 | Lebanon County | | |
| Swede Hill | 1 | Westmoreland County | 15601 | |
| Swedeland | 1 | Montgomery County | 19401 | |
| Sweden | 1 | Potter County | 16915 | |
| Sweden Township | 1 | Potter County | | |
| Sweden Valley | 1 | Potter County | 16915 | |
| Swedesburg | 1 | Montgomery County | 19405 | |
| Swedetown | 1 | Cambria County | 16646 | |
| Swedetown | 1 | Westmoreland County | 15683 | |
| Sweeney Plan | 1 | Westmoreland County | 15012 | |
| Sweeneys Crossroads | 1 | Westmoreland County | | |
| Sweet Valley | 1 | Luzerne County | 18656 | |
| Sweetwater | 1 | Franklin County | | |
| Swengel | 1 | Union County | 17880 | |
| Swiftwater | 1 | Monroe County | 18370 | |
| Swineford | 1 | Snyder County | 17842 | |
| Swissdale | 1 | Clinton County | 17745 | |
| Swissmont | 1 | Elk County | | |
| Swissvale | 1 | Allegheny County | 15218 | |
| Switzer | 1 | Lehigh County | 18066 | |
| Swoyersville | 1 | Luzerne County | 18704 | |
| Syberton | 1 | Cambria County | | |
| Sybertsville | 1 | Luzerne County | 18251 | |
| Sycamore | 1 | Greene County | 15364 | |
| Sycamore Mills | 1 | Delaware County | 19063 | |
| Sygan | 1 | Allegheny County | 15017 | |
| Sygan Hill | 1 | Allegheny County | 15017 | |
| Sykesville | 1 | Jefferson County | 15865 | |
| Sylmar | 1 | Chester County | 19362 | |
| Sylvan | 1 | Franklin County | 17236 | |
| Sylvan Dell | 1 | Berks County | 19606 | |
| Sylvan Dell | 1 | Lycoming County | 17701 | |
| Sylvan Grove | 1 | Clearfield County | 16858 | |
| Sylvan Hills | 1 | Blair County | 16648 | |
| Sylvan Lane | 1 | Somerset County | | |
| Sylvania | 1 | Bradford County | 16945 | |
| Sylvania Township | 1 | Potter County | | |
| Sylvester | 1 | Tioga County | | |
| Sylvis | 1 | Clearfield County | | |
| Syner | 1 | Lebanon County | 17003 | |