Pennsylvania - Criteria: A (event)
| Pennsylvania Furnace Mansion |
| Pennsylvania Hall, Gettysburg College |
| Pennsylvania Hospital |
| Pennsylvania Institute for the Deaf and Dumb |
| Pennsylvania Match Company |
| Pennsylvania Railroad Bridge |
| Pennsylvania Railroad Bridge over Shavers Creek |
| Pennsylvania Railroad District |
| Pennsylvania Railroad Freight Building |
| Pennsylvania Railroad Freight Station |
| Pennsylvania Railroad Office Building |
| Pennsylvania Railroad Old Bridge over Standing Stone Creek |
| Pennsylvania Railroad Passenger Station |
| Pennsylvania Railroad Station at Wayne |
| Pennsylvania Railroad Station-Latrobe |
| Pennsylvania Railroad Station-Wilkinsburg |
| Pennsylvania State Lunatic Hospital |
| Penn Treaty Junior High School |
| Penn, William, Landing Site |
| Pennypacker Mansion |
| Pennypacker, Matthias, Farm |
| Perikomen Bridge Hotel |
| Perry County Courthouse |
| Perry High School |
| Petersburg Tollhouse |
| Peters-Graham House |
| Peters House |
| Philadelphia City Hall |
| Philadelphia College of Art |
| Philadelphia Contributionship |
| Philadelphia National Cemetery |
| Philadelphia Naval Shipyard Historic District |
| Philadelphia Quartermaster Depot |
| Philadelphia Racquet Club |
| Philadelphia School of Occupational Therapy |
| Philadelphia Stock Exchange |
| Philadelphia Wholesales Drug Company Building |
| Philipsburg Historic District |
| Phillips Mill Historic District |
| Phipps Conservatory |
| Phipps-McElveen Building |
| Phoenixville Historic District |
| Physicians and Dentists Building |
| Pickle, Simon, Stone House |
| Pike County Courthouse |
| Pine Bank Covered Bridge |
| Pine Forge Mansion and Industrial Site |
| Pine Grove Covered Bridge |
| Pine Grove Furnace |
| Pine Grove Historic District |
| Pinetown Covered Bridge |
| Pine Valley Covered Bridge |
| Pitcairn Building |
| Pithole City, Site of |
| Pittsburgh and Lake Erie Passenger Station, Aliquippa |
| Pittsburgh and Lake Erie Railroad Complex |
| Pittsburgh Brass Manufacturing Company Building |
| Pittsburgh & Lake Erie Railroad Station |
| Pittsburgh Mercantile Company Building |
| Pittsburgh Renaissance Historic District |
| Pittsburgh Terminal Warehouse and Transfer Company |
| Plant's Covered Bridge |
| Plays and Players |
| Pleasant Hill Plantation |
| Pleasureville Historic Historic |
| Plymouth Friends Meetinghouse |
| Plymouth Meeting Historic District |
| Pocono Manor Historic District |
| Poe, Edgar Allan, House, National Historic Site |
| Point Pleasant Historic District |
| Pont Reading |
| Poole Forge |
| Pool Forge Covered Bridge |
| Portage Historic District |
| Poth and Schmidt Development Houses |
| Poth, Frederick A., Houses, |
| Potter-Allison Farm |
| Potter County Courthouse |
| Pottstown Landing Historic District |
| Pottstown Roller Mill |
| Pottsville Armory |
| Pottsville Downtown Historic District |
| Powelton Historic District |
| Powelton, The |
| Presque Isle Light |
| Presser Home for Retired Music Teachers |
| Princeton Club |
| Printzhof, The |
| Prizer's Mill Complex |
| Promised Land State Park-Bear Wallow Cabins |
| Promised Land State Park Whittaker Lodge District |
| Protestant Episcopal Church of the Saviour |
| Providence Quaker Cemetery and Chapel |
| Pulpit Rocks |
| Pusey-Crozier Mill Historic District |
| Qhandlery Corner |
| Quakertown Historic District |
| Quakertown Passenger and Freight Station |
| Quiet Valley Farm |
| Race Street Friends Meetinghouse |
Data from United States Park Service and Wikidata
