Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Sohs-Cohen School | School | 32 | Philadelphia | 40 02 41 N | 075 03 52 W |
| Sol Feinstone Elementary School | School | 68 | Bucks | 40 17 27 N | 074 56 17 W |
| Solanco High School | School | 194 | Lancaster | 39 52 00 N | 076 09 14 W |
| Soldier | Populated Place | 450 | Jefferson | 41 03 45 N | 078 50 38 W |
| Soldier and Sailor Memorial Park | Park | 130 | Cumberland | 40 12 47 N | 077 01 06 W |
| Soldier Hill Cemetery | Cemetery | 477 | Jefferson | 41 03 18 N | 078 50 04 W |
| Soldier Run | Stream | | Jefferson | 41 05 21 N | 078 53 33 W |
| Soldiers and Sailors Memorial Hall | Building | 288 | Allegheny | 40 26 42 N | 079 57 23 W |
| Soldiers Home Camp (historical) | Locale | 527 | Clinton | 41 10 23 N | 077 45 06 W |
| Soldiers Orphan School | School | 218 | Franklin | 39 58 08 N | 077 35 40 W |
| Solebury | Populated Place | 118 | Bucks | 40 22 50 N | 075 00 30 W |
| Solebury Cemetery | Cemetery | 68 | Bucks | 40 22 16 N | 074 59 11 W |
| Solebury Church | Church | 91 | Bucks | 40 21 02 N | 075 00 49 W |
| Solebury Farm Dam | Dam | 44 | Bucks | 40 22 06 N | 074 59 11 W |
| Solebury Farms Estates | Locale | 140 | Bucks | 40 21 51 N | 075 02 60 W |
| Solebury Mountain | Summit | 142 | Bucks | 40 20 14 N | 074 58 49 W |
| Solebury Mountain Estates | Locale | 91 | Bucks | 40 20 28 N | 074 58 41 W |
| Solebury Post Office (historical) | Post Office | 117 | Bucks | 40 22 51 N | 075 00 29 W |
| Solebury School | School | 43 | Bucks | 40 22 47 N | 074 59 20 W |
| Solebury School | School | 32 | Bucks | 40 22 51 N | 074 57 59 W |
| Solomon Creek | Stream | | Luzerne | 41 13 26 N | 075 57 07 W |
| Solomon Gap | Gap | 503 | Luzerne | 41 11 06 N | 075 53 18 W |
| Solomon Gap | Populated Place | 498 | Luzerne | 41 10 45 N | 075 52 59 W |
| Solomon Run | Stream | | Cambria | 40 18 20 N | 078 54 37 W |
| Solomon Run | Stream | | Lycoming | 41 22 43 N | 077 26 26 W |
| Solomon Temple | Church | 585 | Westmoreland | 40 15 20 N | 079 20 19 W |
| Solomons Church | Church | 124 | Lehigh | 40 30 48 N | 075 33 19 W |
| Solomons Gap Station | Locale | 514 | Luzerne | 41 10 35 N | 075 52 44 W |
| Solomons United Church of Christ | Church | 134 | Bucks | 40 25 19 N | 075 11 07 W |
| Somer Brook | Stream | | Wyoming | 41 27 32 N | 076 10 17 W |
| Somerfield | Populated Place | 516 | Somerset | 39 45 14 N | 079 23 29 W |
| Somers Lane | Populated Place | 305 | Tioga | 41 58 03 N | 077 06 38 W |
| Somerset | Populated Place | 669 | Somerset | 40 00 30 N | 079 04 41 W |
| Somerset Area Junior High School | School | 654 | Somerset | 40 00 24 N | 079 05 17 W |
| Somerset Area Senior High School | School | 653 | Somerset | 40 00 03 N | 079 05 09 W |
| Somerset Country Club | Locale | 673 | Somerset | 40 00 03 N | 079 04 06 W |
| Somerset County | Civil | 555 | Somerset | 40 15 01 N | 079 00 00 W |
| Somerset County Airport | Airport | 683 | Somerset | 40 02 20 N | 079 00 47 W |
| Somerset Dam | Dam | 81 | Chester | 39 47 01 N | 075 44 26 W |
| Somerset Lake | Reservoir | 81 | Chester | 39 47 01 N | 075 44 26 W |
| Somerset Mall | Locale | 679 | Somerset | 40 02 06 N | 079 04 53 W |
| Somerset Number Sixty Dam | Dam | 293 | Washington | 40 06 48 N | 080 01 11 W |
| Somerset Number Sixty Pond E Dam | Dam | 318 | Washington | 40 07 06 N | 080 01 35 W |
| Somerset Plaza | Locale | 687 | Somerset | 40 03 10 N | 079 04 25 W |
| Somerset School | School | 207 | Lycoming | 41 08 49 N | 076 54 46 W |
| Somerset State Hospital | Hospital | 723 | Somerset | 40 00 11 N | 079 02 16 W |
| Somerset Township High School | School | 534 | Somerset | 40 13 42 N | 078 56 24 W |
| Somerset Township School | School | 350 | Washington | 40 08 07 N | 080 03 37 W |
| Somerton | Populated Place | 69 | Philadelphia | 40 07 24 N | 075 00 54 W |
| Somerton Estates | Locale | 61 | Bucks | 40 08 18 N | 075 00 21 W |
| Somerton Manor | Locale | 61 | Bucks | 40 08 21 N | 075 00 25 W |
| Somerton Shopping Center | Locale | 72 | Philadelphia | 40 07 12 N | 075 01 02 W |
| Somerton Springs Country Club | Locale | 51 | Bucks | 40 08 07 N | 075 00 28 W |
| Somerville | Populated Place | 389 | Armstrong | 40 57 38 N | 079 39 14 W |
| Somerville | Populated Place | 75 | Philadelphia | 40 03 06 N | 075 09 05 W |
| Sones Pond | Reservoir | 551 | Sullivan | 41 28 24 N | 076 30 53 W |
| Sones Pond Dam | Dam | 550 | Sullivan | 41 28 18 N | 076 30 53 W |
| Sonestown | Populated Place | 293 | Sullivan | 41 21 13 N | 076 33 15 W |
| Songbird School | School | 661 | McKean | 41 54 15 N | 078 41 29 W |
| Songbird Station Interpretive Trail | Trail | 527 | Forest | 41 27 17 N | 079 04 43 W |
| Songer Hill | Summit | 579 | Jefferson | 41 16 07 N | 079 09 09 W |
| Sonman | Populated Place | 528 | Cambria | 40 23 42 N | 078 39 33 W |
| Sons Heliport | Airport | 12 | Bucks | 40 07 00 N | 074 54 59 W |
| Sopertown | Populated Place | 442 | Bradford | 41 52 32 N | 076 54 16 W |
| Soradoville | Populated Place | 191 | Mifflin | 40 40 47 N | 077 24 45 W |
| Sorber Cemetery | Cemetery | 207 | Luzerne | 41 10 58 N | 076 08 49 W |
| Sorber Mountain | Summit | 532 | Wyoming | 41 23 34 N | 076 05 10 W |
| Sorber Pond | Lake | 260 | Luzerne | 41 11 14 N | 076 09 04 W |
| Sorber Run | Stream | | Wyoming | 41 24 34 N | 076 05 38 W |
| Sorberton Cemetery | Cemetery | 318 | Luzerne | 41 13 18 N | 076 04 49 W |
| Sorrelhorse | Populated Place | 91 | Montgomery | 40 08 50 N | 075 03 23 W |
| Sorrelhorse Hotel | Building | 90 | Montgomery | 40 08 52 N | 075 03 31 W |
| Soudersburg | Populated Place | 115 | Lancaster | 40 00 54 N | 076 09 18 W |
| Soudersburg Post Office (historical) | Post Office | 115 | Lancaster | 40 00 54 N | 076 09 18 W |
| Souderton | Populated Place | 128 | Montgomery | 40 18 42 N | 075 19 31 W |
| Souderton Airport | Airport | 149 | Bucks | 40 18 30 N | 075 18 29 W |
| Souderton Area Senior High School | School | 146 | Montgomery | 40 18 53 N | 075 18 54 W |
| Souderton Shopping Center | Locale | 147 | Bucks | 40 19 08 N | 075 18 17 W |
| Souderton Square | Locale | 148 | Bucks | 40 19 04 N | 075 18 45 W |
| Soukesburg | Populated Place | 486 | Cambria | 40 21 11 N | 078 46 55 W |
| Sours Mills | Populated Place | 154 | Northampton | 40 46 28 N | 075 18 39 W |
| South Abington Elementary School | School | 326 | Lackawanna | 41 28 39 N | 075 40 59 W |
| South Allegheny Elementary School | School | 327 | Allegheny | 40 19 26 N | 079 52 03 W |
| South Altoona | Populated Place | 336 | Blair | 40 29 20 N | 078 24 33 W |
| South Annville Church | Church | 153 | Lebanon | 40 18 27 N | 076 29 08 W |
| South Antrim Elementary School | School | 187 | Franklin | 39 46 30 N | 077 43 41 W |
| South Auburn | Populated Place | 344 | Susquehanna | 41 39 54 N | 076 04 49 W |
| South Avis School | School | 166 | Clinton | 41 10 56 N | 077 17 58 W |
| South Bank School | School | 114 | Chester | 39 44 06 N | 075 47 07 W |
| South Bend | Populated Place | 293 | Armstrong | 40 37 40 N | 079 22 10 W |
| South Bethlehem | Populated Place | 331 | Armstrong | 40 59 58 N | 079 20 27 W |
| South Bethlehem | Populated Place | 87 | Northampton | 40 36 39 N | 075 21 59 W |
| South Bradford | Populated Place | 459 | McKean | 41 55 45 N | 078 39 10 W |
| South Branch | Populated Place | 306 | Bradford | 41 38 54 N | 076 26 41 W |
| South Branch Bear Creek | Stream | | Butler | 41 03 22 N | 079 43 31 W |
| South Branch Bear Run | Stream | | Indiana | 40 52 35 N | 078 48 31 W |
| South Branch Bennett Branch | Stream | | Clearfield | 41 10 43 N | 078 36 12 W |
| South Branch Blacklick Creek | Stream | | Cambria | 40 29 02 N | 078 55 24 W |
| South Branch Bowman Creek | Stream | | Luzerne | 41 20 25 N | 076 13 13 W |
| South Branch Brady Run | Stream | | Beaver | 40 43 49 N | 080 20 07 W |
| South Branch Browns Run | Stream | | Fayette | 39 51 45 N | 079 52 19 W |
| South Branch Brush Creek | Stream | | Indiana | 40 31 33 N | 079 01 50 W |
| South Branch Calkins Creek | Stream | | Wayne | 41 40 11 N | 075 04 09 W |
| South Branch Canada Run | Stream | | Potter | 41 54 59 N | 078 07 59 W |
| South Branch Canawacta Creek | Stream | | Susquehanna | 41 56 08 N | 075 33 58 W |
| South Branch Codorus Creek | Stream | | York | 39 55 26 N | 076 45 04 W |
| South Branch Cole Creek | Stream | | McKean | 41 51 22 N | 078 28 11 W |
| South Branch Conewago Creek | Stream | | Adams | 39 53 32 N | 077 04 34 W |
| South Branch Cowanshannock Creek | Stream | | Armstrong | 40 47 51 N | 079 15 55 W |
| South Branch Cush Creek | Stream | | Indiana | 40 44 51 N | 078 53 16 W |