- Daisytown
- Dale
- Dallas
- Dallastown
- Dalmatia
- Dalton
- Danville
- Darby
- Darlington
- Darlington
- Dauberville
- Dauphin
- Davidsville
- Dawson
- Dayton
- Deemston
- Deer Lake
- Deer Lake
- Defiance
- Delano
- Delaware Water Gap
- Delmont
- Delta
- Denver
- Derry
- Devon
- Dewart
- Dickson City
- Dicksonville
- Dillsburg
- Donaldson
- Donegal
- Donora
- Dormont
- Dorneyville
- Douglassville
- Dover
- Downingtown
- Doylestown
- Doylestown
- Dravosburg
- Dresher
- Drexel Hill
- Driftwood
- Dry Tavern
- Dryville
- Dublin
- DuBois
- Duboistown
- Dudley
- Dunbar
- Duncannon
- Duncansville
- Dunlevy
- Dunlo
- Dunmore
- Dunnstown
- Dupont
- Duquesne
- Duryea
- Dushore
