Pennsylvania - Criteria: A (event)
| Dale Furnace and Forge Historic District |
| Damascus Historic District |
| Danley Covered Bridge |
| Danville Historic District |
| Dauphin County Courthouse |
| Davies House |
| Davis Covered Bridge |
| Davis, David, Farm |
| Davis, Horn, Overholtzer Bridge |
| Davis Island Lock and Dam Site |
| Dawesfield |
| Dawson Historic District |
| Day Covered Bridge |
| DDI Electric Locomotive No. 36 |
| Decker's Chapel |
| Deer Creek Bridge, Stewartstown Railroad |
| Deery Family Homestead |
| Defibaugh Tavern |
| DeHaven, Harry, House |
| Deisher, H. K., Knitting Mill |
| Delaware County National Bank |
| Delaware Division of the Pennsylvania Canal |
| Delaware, Lackawanna and Western Railroad Station |
| Delaware, Lackawanna and Western Railroad Water Gap Staion |
| Delaware, Lackawanna and Western Railroad Yard-Dickson Manufacturing Co. Site |
| Dellville Covered Bridge |
| Delmar Apartments |
| Delta Historic District |
| Delta Trestle Bridge, Maryland and Pennsylvania Railroad |
| Dent Hardware Company Factory Complex |
| Derry Session House and Enclosure |
| Devil's Den, McClurg Covered Bridge |
| D & H Canal Co. Office |
| Diamond Silk Mill |
| Dickson Tavern |
| Dickson Works |
| Diehls Covered Bridge |
| Dillingersville Union School and Church |
| Dill's Tavern |
| Dilworthtown Historic District |
| Dime Bank Building |
| Dime Savings and Trust Company |
| Dimmsville Covered Bridge |
| Dingman's Ferry Dutch Reformed Church |
| Doak-Little House |
| Dobbin House |
| Dobson Mills |
| Doe Run Village Historic District |
| Dolington Village Historic District |
| Dollar Savings Bank |
| Donegal Mills Plantation |
| Donegal Presbyterian Church Complex |
| Dorflinger, Eugene, Estate |
| Dorneyville Crossroad Settlement |
| Dougherty, Edward, House |
| Dougherty, Philip, House |
| Dougherty, Philip, Tavern |
| Downer Tavern |
| Downingtown Log House |
| Downtown Indiana Historic District |
| Downtown Johnstown Historic District |
| Downtown Wayne Historic District |
| Doylestown Historic District |
| Drake Hotel |
| Drake Log Cabin |
| Drake Oil Well |
| Dreese's Covered Bridge |
| Dreibelbis, Joel, Farm |
| Dreibelbis Mill |
| Dreibelbis Station Bridge |
| Drexel and Company Building |
| Dritt Mansion |
| Dropsie University Complex |
| Drovers Inn |
| Drueding Brothers Company Building |
| Dubois Historic District |
| Dunbar-Creigh House |
| Dunlap's Creek Bridge |
| Duquesne Brewing Company |
| Duquesne Incline |
| Durham Mill and Furnace |
| Dykeman's Spring |
| Eagles Mere Historic District |
| Eagle Tavern |
| Eakin, John, Farm |
| East Berlin Historic District |
| East Broad Top Railroad |
| East Center City Commercial Historic District |
| Eastern State Penitentiary |
| East Lancaster Avenue Historic District |
| East Liberty Commercial Historic District |
| East Liberty Market |
| Easton Historic District |
| Easton House |
| East Oriental Covered Bridge |
| East Stroudsburg Armory |
| East Stroudsburg Railroad Station |
| Ebenezer Covered Bridge |
| Eberhardt and Ober Brewery |
| Eby Shoe Corporation |
Data from United States Park Service and Wikidata
