Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Delaware Cemetery | Cemetery | 372 | Mercer | 41 20 01 N | 080 19 04 W |
| Delaware Cemetery | Cemetery | 142 | Pike | 41 13 37 N | 074 52 13 W |
| Delaware Church | Church | 184 | Juniata | 40 36 05 N | 077 14 09 W |
| Delaware County | Civil | 72 | Delaware | 40 00 01 N | 075 22 30 W |
| Delaware County Area Vocational-Technical School-Folcroft | School | 12 | Delaware | 39 53 34 N | 075 16 18 W |
| Delaware County AVTS - Aston | School | 89 | Delaware | 39 52 56 N | 075 27 14 W |
| Delaware County Community College | School | 107 | Delaware | 39 58 00 N | 075 23 36 W |
| Delaware County Juvenile Detention Center | Building | 101 | Delaware | 39 55 25 N | 075 26 44 W |
| Delaware County Memorial Hospital | Hospital | 57 | Delaware | 39 57 15 N | 075 17 01 W |
| Delaware County Prison | Building | 111 | Delaware | 39 54 05 N | 075 30 29 W |
| Delaware Creek | Stream | | Juniata | 40 33 17 N | 077 14 01 W |
| Delaware Elementary School | School | 138 | Carbon | 40 47 58 N | 075 36 51 W |
| Delaware Expressway Industrial Park | Locale | 5 | Bucks | 40 05 12 N | 074 55 29 W |
| Delaware Expressway Industrial Park | Locale | 7 | Bucks | 40 04 33 N | 074 56 01 W |
| Delaware Falls | Falls | 615 | Luzerne | 41 19 29 N | 076 17 04 W |
| Delaware Grove | Populated Place | 394 | Mercer | 41 18 13 N | 080 17 42 W |
| Delaware River Access Area | Park | -3 | Bucks | 40 03 48 N | 074 56 53 W |
| Delaware River Bridge | Bridge | -44 | Bucks | 40 07 01 N | 074 49 49 W |
| Delaware River Gorge | Valley | | Pike | 41 21 54 N | 074 41 23 W |
| Delaware Run | Populated Place | 163 | Northumberland | 41 08 12 N | 076 51 04 W |
| Delaware Run | Stream | | Northumberland | 41 05 36 N | 076 52 50 W |
| Delaware School | School | 213 | Juniata | 40 35 51 N | 077 15 16 W |
| Delaware State Forest | Park | 349 | Monroe | 41 07 24 N | 075 09 59 W |
| Delaware Valley College of Science and Agr | School | 105 | Bucks | 40 17 50 N | 075 09 22 W |
| Delaware Valley College Station | Building | 96 | Bucks | 40 17 41 N | 075 09 11 W |
| Delaware Valley College Station | Locale | 88 | Bucks | 40 17 42 N | 075 09 26 W |
| Delaware Valley High School | School | 131 | Pike | 41 20 59 N | 074 44 14 W |
| Delaware Water Gap | Gap | 102 | Monroe | 40 58 03 N | 075 07 20 W |
| Delaware Water Gap | Populated Place | 155 | Monroe | 40 58 45 N | 075 08 35 W |
| Delaware Water Gap National Recreation Area | Park | 110 | Pike | 41 09 00 N | 074 54 59 W |
| Delaware Water Gap Station (historical) | Building | 93 | Monroe | 40 59 16 N | 075 08 13 W |
| Delaware Water Gap Toll Bridge | Bridge | 89 | Monroe | 40 58 50 N | 075 08 12 W |
| Delaware-Lehigh State Experimental Forest | Forest | 570 | Monroe | 41 01 33 N | 075 31 15 W |
| Delchester Run | Stream | | Chester | 39 58 04 N | 075 29 02 W |
| Delco Plaza Shopping Center | Locale | 124 | York | 39 58 00 N | 076 46 05 W |
| Delcroft Elementary School | School | 12 | Delaware | 39 53 24 N | 075 16 52 W |
| Delhaas High School | School | 9 | Bucks | 40 06 32 N | 074 52 36 W |
| Delhill Corners | Populated Place | 407 | Erie | 42 09 18 N | 079 51 47 W |
| Dell Delight Legion Park | Park | 289 | Blair | 40 25 56 N | 078 24 20 W |
| Dell Family Cemetery | Cemetery | 252 | Huntingdon | 40 21 45 N | 077 57 45 W |
| Dell Lake | Lake | 258 | Schuylkill | 40 39 07 N | 076 25 46 W |
| Dellinger Run | Stream | | Lancaster | 40 07 02 N | 076 25 31 W |
| Dellinger School | School | 201 | York | 39 55 24 N | 076 30 15 W |
| Dells Run | Stream | | Cameron | 41 32 45 N | 078 19 00 W |
| Dellville | Populated Place | 121 | Perry | 40 21 50 N | 077 06 57 W |
| Dellville Church | Church | 138 | Perry | 40 22 02 N | 077 06 40 W |
| Delmont | Populated Place | 384 | Westmoreland | 40 24 47 N | 079 34 13 W |
| Delmont Boy Scout Camp | Locale | 99 | Montgomery | 40 20 58 N | 075 26 15 W |
| Delmont Compressor Station | Building | 383 | Westmoreland | 40 23 03 N | 079 32 52 W |
| Delmont Manor | Locale | 95 | Bucks | 40 12 27 N | 075 07 23 W |
| Delmont Mine Refuse Bank Dam | Dam | 319 | Westmoreland | 40 12 00 N | 079 38 29 W |
| DeLong Memorial School | School | 171 | Montour | 41 03 12 N | 076 40 22 W |
| Deloy Hollow | Valley | | Cameron | 41 30 26 N | 078 07 10 W |
| Delphene | Populated Place | 337 | Greene | 39 49 48 N | 080 22 48 W |
| Delphi | Populated Place | 46 | Montgomery | 40 16 10 N | 075 28 14 W |
| Delps | Populated Place | 228 | Northampton | 40 48 07 N | 075 26 60 W |
| Delps Cemetery | Cemetery | 93 | Montgomery | 40 17 50 N | 075 22 49 W |
| Delroy | Populated Place | 172 | York | 39 58 17 N | 076 34 25 W |
| Delta | Populated Place | 139 | York | 39 43 37 N | 076 19 36 W |
| Delta Airport | Airport | 164 | York | 39 43 30 N | 076 20 44 W |
| Delta Manor | Populated Place | 110 | Northampton | 40 39 27 N | 075 24 26 W |
| Delta Manor Park | Park | 111 | Northampton | 40 38 21 N | 075 24 16 W |
| Deltaven Station | Locale | 475 | Clarion | 41 10 32 N | 079 13 35 W |
| DeLuca Field | Park | 340 | Indiana | 40 25 42 N | 079 15 17 W |
| Dempsey Run | Stream | | McKean | 41 39 55 N | 078 12 11 W |
| Dempsey Run | Stream | | Somerset | 39 57 24 N | 079 06 04 W |
| Dempseytown | Populated Place | 447 | Venango | 41 30 47 N | 079 46 41 W |
| Demunds Corners | Populated Place | 388 | Luzerne | 41 22 50 N | 075 56 38 W |
| Denbeau Heights | Populated Place | 279 | Washington | 40 01 27 N | 079 54 58 W |
| Denbo | Populated Place | 241 | Washington | 40 00 44 N | 079 55 54 W |
| Deneen Gap | Gap | 199 | Fulton | 39 47 56 N | 078 14 19 W |
| Denholm | Populated Place | 145 | Juniata | 40 36 03 N | 077 26 00 W |
| Denison | Populated Place | 409 | Westmoreland | 40 17 26 N | 079 27 50 W |
| Denmark Manor Cemetery | Cemetery | 362 | Westmoreland | 40 23 12 N | 079 37 28 W |
| Denmark Manor Church | Church | 376 | Westmoreland | 40 23 20 N | 079 37 32 W |
| Dennis Cemetery | Cemetery | 369 | Susquehanna | 41 44 06 N | 075 45 48 W |
| Dennis Creek | Stream | | Franklin | 39 56 46 N | 077 44 21 W |
| Dennis Hill | Summit | 687 | Potter | 41 56 02 N | 077 41 46 W |
| Dennis Mills | Populated Place | 180 | Columbia | 41 03 37 N | 076 19 06 W |
| Dennis Run | Stream | | Chester | 39 57 40 N | 075 48 01 W |
| Dennis Run | Stream | | Warren | 41 40 50 N | 079 25 29 W |
| Dennis School (historical) | School | 346 | Crawford | 41 35 13 N | 080 18 11 W |
| Dennison Fork | Stream | | Clinton | 41 15 02 N | 077 50 13 W |
| Dennison Hollow | Valley | | Lycoming | 41 12 18 N | 077 16 05 W |
| Dennison Run | Stream | | Carbon | 40 51 09 N | 075 52 13 W |
| Dennison Run | Stream | | Venango | 41 16 25 N | 079 50 51 W |
| Denny | Locale | 227 | Allegheny | 40 32 19 N | 079 49 51 W |
| Denny Cemetery | Cemetery | 350 | Crawford | 41 39 49 N | 080 13 26 W |
| Denny School (historical) | School | 350 | Crawford | 41 40 19 N | 080 13 39 W |
| Dennys Corners | Populated Place | 340 | Crawford | 41 40 25 N | 080 13 28 W |
| Dennys Mills | Populated Place | 411 | Butler | 40 46 50 N | 079 43 53 W |
| Denton | Populated Place | 415 | Indiana | 40 49 37 N | 079 10 56 W |
| Denton Creek | Stream | 264 | Susquehanna | 41 57 55 N | 075 40 22 W |
| Denton Hill | Populated Place | 742 | Potter | 41 45 37 N | 077 52 50 W |
| Denton Hill Ski Area | Locale | 661 | Potter | 41 46 20 N | 077 49 54 W |
| Denton Hill State Park | Park | 598 | Potter | 41 46 03 N | 077 49 48 W |
| Denton Terrace | Populated Place | 236 | York | 39 54 31 N | 076 38 41 W |
| Dents Run | Populated Place | 281 | Elk | 41 21 29 N | 078 16 02 W |
| Dents Run | Stream | | Elk | 41 21 20 N | 078 15 45 W |
| Denver | Populated Place | 128 | Lancaster | 40 13 59 N | 076 08 14 W |
| Deodate | Populated Place | 176 | Dauphin | 40 12 48 N | 076 37 17 W |
| DePaul Institute | School | 372 | Allegheny | 40 23 26 N | 080 01 37 W |
| Depression Storage Area Dam | Dam | 357 | Indiana | 40 40 12 N | 079 10 17 W |
| Depue Island | Island | 97 | Monroe | 41 00 39 N | 075 05 57 W |
| Depuy Ferry (historical) | Locale | 55 | Northampton | 40 46 35 N | 075 07 51 W |
| Derr Run | Stream | | Lycoming | 41 13 12 N | 076 37 26 W |
| Derrick City | Populated Place | 477 | McKean | 41 58 14 N | 078 34 17 W |
| Derrick City Elementary School | School | 478 | McKean | 41 58 14 N | 078 34 21 W |
| Derringer | Populated Place | 333 | Luzerne | 40 56 59 N | 076 08 39 W |
| Derringer Colliery | Building | 334 | Luzerne | 40 57 02 N | 076 08 37 W |