National Register of Historic Places listings in Pennsylvania Information
This is a list of properties and districts listed on the National Register of Historic Places in Pennsylvania. As of 2015 [update], there are over 3,000 listed sites in Pennsylvania. Sixty-six of the 67 counties in Pennsylvania have listings on the National Register; Cameron County is the only county without any sites listed.
The following are approximate tallies of current listings in Pennsylvania on the National Register of Historic Places. These counts are based on entries in the National Register Information Database as of April 24, 2008  and new weekly listings posted since then on the National Register of Historic Places web site.  There are frequent additions to the listings and occasional delistings and the counts here are not official. Also, the counts in this table exclude boundary increase and decrease listings which modify the area covered by an existing property or district and which carry a separate National Register reference number. 16 percent of the NRHP's in Pennsylvania are in Philadelphia, and nearly 40 percent are located within the Delaware Valley.
- List of bridges on the National Register of Historic Places in Pennsylvania (excluding covered bridges)
- List of National Historic Landmarks in Pennsylvania (excluding Philadelphia)
- List of Pennsylvania state historical markers
- "National Register of Historic Places: Weekly List Actions". National Park Service, United States Department of the Interior. Retrieved on June 14, 2019.
- National Park Service (2008-04-24). "National Register Information System". National Register of Historic Places. National Park Service.
- "National Register of Historic Places: Weekly List Actions". National Park Service. Retrieved January 2, 2009.
- The Allegheny River Lock and Dam No. 2 is split between Pittsburgh and O'Hara Township, the Fortieth Street Bridge is split between Pittsburgh and Millvale, the Homestead High-Level Bridge is split between Pittsburgh and Homestead, and the McKees Rocks Bridge is split between Pittsburgh and McKees Rocks and Stowe Township
- Middle Pickering Rural Historic District (Eastern and Northern)
- The Lancaster City Historic District is split between Lancaster and Manheim Township
- Fairmount Park (North, Northwest, and West Philadelphia), Adams Avenue Bridge in Philadelphia (North and Northeast Philadelphia), Park Towne Place (Center City and North Philadelphia), and University Avenue Bridge (West and South Philadelphia).
- The following sites are listed in multiple counties: Allegheny Portage Railroad National Historic Site (Blair and Cambria), Allegheny River Lock and Dam No. 4 (Allegheny and Westmoreland), Allenwood River Bridge (Northumberland and Union), Bartram's Covered Bridge (Chester and Delaware), Birmingham Bridge (Blair and Huntingdon), Black Rock Bridge (Chester and Montgomery), Gottlieb Brown Covered Bridge (Montour and Northumberland), Brownsville Bridge (Fayette and Washington), Carbon County Section of the Lehigh Canal (Carbon and Northampton), Central Bethlehem Historic District (Lehigh and Northampton), Charleroi-Monessen Bridge (Washington and Westmoreland), Compton and Bloomfield (Montgomery and Philadelphia), Cook Forest State Park Indian Cabin District (Clarion and Forest), Dauphin County Bridge No. 27 (Dauphin and Northumberland), Horn Davis Overholtzer Bridge (Greene and Washington), Delaware Division of the Pennsylvania Canal (Bucks and Northampton), Delaware and Hudson Canal (Pike and Wayne), East Broad Top Railroad (Bedford and Huntingdon), East Oriental Covered Bridge (Juniata and Snyder), Eliza Furnace (Cambria and Indiana), Etters Bridge (Cumberland and York), Fountain Hill Historic District (Lehigh and Northampton), Gilbert Bridge (Cumberland and York), Hopewell Furnace National Historic Site (Berks and Chester), Lawrence L. Knoebel Covered Bridge (Columbia and Northumberland), Kreigbaum Covered Bridge (Columbia and Northumberland), Lehigh Canal; Allentown to Hopeville Section (Lehigh and Northampton), Marion Bridge (Fayette and Greene), Market Street Bridge (Cumberland and Dauphin), Mercer's Mill Covered Bridge (Chester and Lancaster), Millersburg Ferry (Dauphin and Perry), North Oriental Covered Bridge (Juniata and Snyder), Old Columbia-Wrightsville Bridge (Lancaster and York), Pine Grove Covered Bridge (Chester and Lancaster), Richards Covered Bridge (Columbia and Northumberland), Rockville Bridge (Dauphin and Perry), Schuylkill Navigation Canal, Oakes Reach Section (Chester and Montgomery), Twin Bridges Rural Historic District (Chester and Delaware), Stanley (Montgomery and Philadelphia), Upper Roxborough Historic District (Montgomery and Philadelphia), Valley Forge National Historical Park (Chester and Montgomery), Watsontown River Bridge (Northumberland and Union), Webster Donora Bridge (Washington and Westmoreland), Windber Historic District (Cambria and Somerset), and Woodvale Historic District (Bedford, Fulton, and Huntingdon).
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