Pennsylvania - Role: District
| Clear Creek State Park Day Use District |
| Clear Creek State Park Family Cabin District |
| Clemson Island Prehistoric District |
| Clinton Street Historic District |
| Coalport Historic District |
| Coatesville Historic District |
| Coatesville Veterans Administration Hospital Historic District |
| Cobbs Creek Automobile Suburb Historic District |
| Codorus Forge and Furnace Historic District |
| Cold Point Historic District |
| College Heights Historic District |
| College Hill Residential Historic District |
| Colonial Germantown Historic District |
| Colton Point State Park |
| Columbia Historic District |
| Colver Historic District |
| Commodore Historic District |
| Compton and Bloomfield |
| Concordville Historic District |
| Continental Stove Works |
| Cook Forest State Park Indian Cabin District |
| Cook Forest State Park River Cabin District |
| Coopersburg Historic District |
| Cornplanter Grant |
| Cornwall Iron Furnace |
| Corry Historic District |
| Coudersport Historic District |
| Coulsontown Cottages Historic District |
| Coventryville Historic District |
| Cowans Gap State Park Family Cabin District |
| Crook Farm |
| Cumberland Valley State Normal School Historic District |
| Curtin Village |
| Cuttalossa Valley Historic District |
| Dale Furnace and Forge Historic District |
| Damascus Historic District |
| Danville Historic District |
| Danville West Market Street Historic District |
| Davis, David, Farm |
| Dawson Historic District |
| Deery Family Homestead |
| Delaware Division of the Pennsylvania Canal |
| Delaware, Lackawanna and Western Railroad Yard-Dickson Manufacturing Co. Site |
| Delta Historic District |
| Deutschtown Historic District |
| Dilworthtown Historic District |
| Dobson Mills |
| Doe Run Village Historic District |
| Dolington Village Historic District |
| Donegal Presbyterian Church Complex |
| Downtown Altoona Historic District |
| Downtown Indiana Historic District |
| Downtown Johnstown Historic District |
| Downtown Wayne Historic District |
| Doylestown Historic District |
| Dreibelbis, Joel, Farm |
| Drexel Development Historic District |
| Dropsie University Complex |
| Druim Moir Historic District |
| Dubois Historic District |
| Duquesne Brewing Company |
| Dutch Corner Historic Agricultural District |
| Dyerstown Historic District |
| Eagles Mere Historic District |
| Eakin, John, Farm |
| East Berlin Historic District |
| East Broad Top Railroad |
| East Carson Street Historic District |
| East Center City Commercial Historic District |
| East Lancaster Avenue Historic District |
| East Liberty Commercial Historic District |
| Easton Cemetery |
| Easton Historic District |
| East Washington Historic District |
| East York Historic District |
| Ebensburg Historic District |
| Eberhardt and Ober Brewery |
| Eckley Historic District |
| Economy Historic District |
| Eden Cemetery |
| Ehrhart's Mill Historic District |
| Eisenhower National Historic Site |
| Eisenlohr-Bayuk Tobacco Historic District |
| Elfreth's Alley Historic District |
| Elliott, S. B., State Park Day Use District |
| Elliott, S. B., State Park Family Cabin District |
| Elmwood Park Historic District |
| Elverson Historic District |
| Embreeville Historic District |
| Emlenton Historic District |
| Ephrata Cloister |
| Ephrata Commercial Historic District |
| Equinunk Historic District |
| Ercildoun Historic District |
| Etna Furnace |
| Evansburg Historic District |
| Everett Historic District |
| Evergreen Hamlet |
| Fairfield Historic District |
| Fairmount Avenue Historic District |
Data from United States Park Service and Wikidata
