Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Boro Hall | Building | 424 | Elk | 41 25 15 N | 078 43 54 W |
| Borough of Middletown Mill Street Substation | Building | 91 | Dauphin | 40 11 33 N | 076 43 35 W |
| Borough of Middletown Water Treatment Plant | Building | 91 | Dauphin | 40 11 33 N | 076 43 40 W |
| Boston Colliery | Building | 305 | Luzerne | 41 17 41 N | 075 45 53 W |
| Bradford County Home | Building | 270 | Bradford | 41 46 30 N | 076 37 23 W |
| Brandywine Academy | Building | 121 | Delaware | 39 53 17 N | 075 31 04 W |
| Brandywine Facility | Building | 171 | Chester | 40 07 19 N | 075 46 34 W |
| Brandywine River Museum | Building | 50 | Delaware | 39 52 12 N | 075 35 34 W |
| Bridgewater Station | Building | 9 | Delaware | 39 51 54 N | 075 23 53 W |
| Broad Street Market | Building | 100 | Dauphin | 40 16 10 N | 076 53 26 W |
| Brown Breaker (historical) | Building | 233 | Luzerne | 41 20 33 N | 075 44 01 W |
| Brownsdale Station | Building | 231 | Allegheny | 40 12 42 N | 079 56 31 W |
| Brownville Breaker (historical) | Building | 256 | Luzerne | 41 20 35 N | 075 43 39 W |
| Brumbaugh Historical House (historical) | Building | 241 | Huntingdon | 40 23 34 N | 078 08 25 W |
| Brunot Island Station | Building | 220 | Allegheny | 40 27 44 N | 080 02 35 W |
| Buck Mountain Colliery | Building | 525 | Luzerne | 40 59 59 N | 075 50 15 W |
| Buck Mountain Colliery (historical) | Building | 414 | Carbon | 40 58 44 N | 075 49 26 W |
| Buckingham Township Hall | Building | 73 | Bucks | 40 19 19 N | 075 03 38 W |
| Buckingham Valley Station | Building | 68 | Bucks | 40 18 33 N | 075 02 57 W |
| Bucks County Library Center | Building | 119 | Bucks | 40 18 29 N | 075 07 31 W |
| Buffalo Breaker | Building | 490 | Lackawanna | 41 37 50 N | 075 29 29 W |
| Buhl Science Center | Building | 233 | Allegheny | 40 27 11 N | 080 00 18 W |
| Buter Museum of Wedgwood | Building | 98 | Montgomery | 40 00 26 N | 075 14 41 W |
| Butler Street Station | Building | 228 | Allegheny | 40 29 23 N | 079 56 11 W |
| Byers Station (historical) | Building | 393 | Westmoreland | 40 11 42 N | 079 14 23 W |
| Cambria County Home | Building | 634 | Cambria | 40 29 20 N | 078 42 00 W |
| Carbon Hill Breaker (historical) | Building | 212 | Lackawanna | 41 21 55 N | 075 43 29 W |
| Carlisle YMCA | Building | 143 | Cumberland | 40 11 51 N | 077 11 38 W |
| Carnegie Library | Building | 275 | Allegheny | 40 26 36 N | 079 57 01 W |
| Carnegie Museum of Arts and Natural History | Building | 275 | Allegheny | 40 26 36 N | 079 56 59 W |
| Carnegie Music Hall | Building | 249 | Allegheny | 40 26 26 N | 079 57 01 W |
| Carnegie Station | Building | 232 | Allegheny | 40 25 04 N | 080 04 37 W |
| Carpenters Hall | Building | 7 | Philadelphia | 39 56 51 N | 075 08 52 W |
| Carson Street Station | Building | 227 | Allegheny | 40 25 49 N | 079 59 55 W |
| Cathcart Home | Building | 157 | Chester | 40 03 18 N | 075 25 17 W |
| Cats Run Junction Station (historical) | Building | 247 | Fayette | 39 50 12 N | 079 55 17 W |
| Central Breaker (historical) | Building | 207 | Luzerne | 41 20 54 N | 075 44 35 W |
| Central Breaker (historical) | Building | 220 | Luzerne | 41 20 36 N | 075 44 39 W |
| Century Inn | Building | 415 | Washington | 40 05 09 N | 080 04 10 W |
| Chadd House | Building | 62 | Delaware | 39 52 33 N | 075 35 34 W |
| Chalfont Station | Building | 77 | Bucks | 40 17 15 N | 075 12 43 W |
| Chandler Hall Nursing Home | Building | 44 | Bucks | 40 13 13 N | 074 56 28 W |
| Chelten Avenue Station | Building | 66 | Philadelphia | 40 01 48 N | 075 10 53 W |
| Cheltenham Station | Building | 42 | Montgomery | 40 03 26 N | 075 05 35 W |
| Chester County Prison | Building | 104 | Chester | 39 54 29 N | 075 39 37 W |
| Chester Heights Station | Building | 76 | Delaware | 39 53 09 N | 075 28 17 W |
| Chester Valley Post Office (historical) | Building | 64 | Chester | 40 03 44 N | 075 27 47 W |
| Chestnut Hill East Station | Building | 113 | Philadelphia | 40 04 06 N | 075 12 35 W |
| Chestnut Hill Station | Building | 131 | Philadelphia | 40 04 42 N | 075 12 31 W |
| Chew House | Building | 102 | Philadelphia | 40 02 50 N | 075 10 52 W |
| Cheyney Station | Building | 78 | Delaware | 39 55 42 N | 075 31 23 W |
| Childrens Cottage | Building | 106 | Delaware | 39 55 14 N | 075 26 41 W |
| Childrens Home | Building | 310 | Washington | 40 12 10 N | 080 15 42 W |
| Christ Home | Building | 85 | Bucks | 40 12 50 N | 075 06 56 W |
| Churchville Station | Building | 60 | Bucks | 40 11 03 N | 075 00 47 W |
| City Tavern | Building | 6 | Philadelphia | 39 56 49 N | 075 08 42 W |
| Civic Arena | Building | 258 | Allegheny | 40 26 30 N | 079 59 23 W |
| Clifton Station | Building | 33 | Delaware | 39 55 35 N | 075 17 23 W |
| Clinton Breaker | Building | 441 | Wayne | 41 38 08 N | 075 27 40 W |
| Cogan Station Post Office (historical) | Building | 188 | Lycoming | 41 19 04 N | 077 04 44 W |
| Coleman Station | Building | 250 | Allegheny | 40 28 56 N | 079 54 23 W |
| Collamer Post Office (historical) | Building | 143 | Chester | 39 51 39 N | 075 59 12 W |
| Colonial Dames of America | Building | 12 | Philadelphia | 39 56 51 N | 075 10 08 W |
| Concord Station | Building | 76 | Delaware | 39 52 51 N | 075 30 46 W |
| Concord Township Library | Building | 115 | Delaware | 39 52 03 N | 075 30 51 W |
| Congress Hall | Building | 9 | Philadelphia | 39 56 55 N | 075 09 04 W |
| Conoy Township Municipal Building | Building | 112 | Lancaster | 40 07 47 N | 076 42 47 W |
| Conshohocken Station | Building | 45 | Montgomery | 40 04 03 N | 075 18 35 W |
| Consumers Powder Companys Mill | Building | 291 | Lackawanna | 41 27 29 N | 075 34 35 W |
| Cornog Station | Building | 108 | Chester | 40 04 34 N | 075 45 08 W |
| Cornplanter Municipal Building | Building | 456 | Venango | 41 26 59 N | 079 40 36 W |
| County Home | Building | 360 | Blair | 40 30 45 N | 078 22 33 W |
| County Line Station | Building | 66 | Bucks | 40 09 54 N | 075 03 35 W |
| Coverdale Station | Building | 364 | Allegheny | 40 19 36 N | 080 02 29 W |
| Crawford Pumping Station | Building | 542 | Jefferson | 41 16 02 N | 079 07 50 W |
| Crawfordtown Delancey PO (historical) | Building | 409 | Jefferson | 40 59 21 N | 078 58 12 W |
| Cross Roads Grange | Building | 436 | Clarion | 41 00 55 N | 079 30 55 W |
| Crozier Run Branch Junction Station (historical) | Building | 361 | Fayette | 39 50 23 N | 079 48 51 W |
| Crumlynn Station | Building | 11 | Delaware | 39 52 15 N | 075 19 53 W |
| Curry Memorial Home | Building | 319 | Greene | 39 53 21 N | 080 07 33 W |
| Cynwyd Station | Building | 82 | Montgomery | 40 00 24 N | 075 13 55 W |
| Daniel Boone Homestead | Building | 66 | Berks | 40 17 53 N | 075 47 51 W |
| Darlington Station | Building | 57 | Delaware | 39 54 16 N | 075 28 13 W |
| David Bradford House | Building | 331 | Washington | 40 10 03 N | 080 14 42 W |
| David Lawrence Convention Center | Building | 225 | Allegheny | 40 26 40 N | 079 59 43 W |
| DeBenneyville House | Building | 86 | Berks | 40 20 35 N | 075 46 58 W |
| Delaware County Juvenile Detention Center | Building | 101 | Delaware | 39 55 25 N | 075 26 44 W |
| Delaware County Prison | Building | 111 | Delaware | 39 54 05 N | 075 30 29 W |
| Delaware Valley College Station | Building | 96 | Bucks | 40 17 41 N | 075 09 11 W |
| Delaware Water Gap Station (historical) | Building | 93 | Monroe | 40 59 16 N | 075 08 13 W |
| Delmont Compressor Station | Building | 383 | Westmoreland | 40 23 03 N | 079 32 52 W |
| Derringer Colliery | Building | 334 | Luzerne | 40 57 02 N | 076 08 37 W |
| Derrydown Post Office (historical) | Building | 114 | Chester | 39 54 20 N | 075 50 09 W |
| DeYoung PO (historical) | Building | 583 | Elk | 41 34 17 N | 078 54 29 W |
| Dodge Colliery Breaker | Building | 227 | Lackawanna | 41 23 45 N | 075 41 03 W |
| Dolphs Breaker | Building | 335 | Lackawanna | 41 28 05 N | 075 32 55 W |
| Dorseyville Home | Building | 314 | Allegheny | 40 34 31 N | 079 53 19 W |
| Dublin Fire Company Number 23 | Building | 152 | Bucks | 40 22 32 N | 075 12 37 W |
| Duffs Junction Station | Building | 279 | Allegheny | 40 23 43 N | 080 04 46 W |
| Duffs Station | Building | 230 | Allegheny | 40 27 49 N | 080 04 40 W |
| Duffs-Scully Junction Station | Building | 232 | Allegheny | 40 27 31 N | 080 05 07 W |
| Dunwood Home | Building | 122 | Delaware | 39 59 02 N | 075 23 35 W |
| Duquesne Wharf Station | Building | 229 | Allegheny | 40 23 02 N | 079 51 01 W |
| Eagle Station | Building | 139 | Chester | 40 02 56 N | 075 24 53 W |
| East Hickory Fire Hall | Building | 338 | Forest | 41 35 08 N | 079 24 15 W |
| East Hickory Substation | Building | 341 | Forest | 41 35 13 N | 079 24 15 W |
| East Liberty Station | Building | 280 | Allegheny | 40 27 35 N | 079 55 04 W |
| Eastern Correctional Institution | Building | 29 | Philadelphia | 39 58 05 N | 075 10 23 W |
| Easton Boro Hall | Building | 79 | Northampton | 40 40 45 N | 075 14 11 W |
| Easton Childrens Home | Building | 82 | Northampton | 40 40 05 N | 075 14 29 W |