D
- Dailsville
- Daisy
- Damascus
- Dameron
- Dames Quarter
- Daniel
- Daniels
- Dans Run
- Danville
- Danville
- Danwood
- Danza Village
- D'Arcy Hills
- Dargan
- Darlington
- Darnestown
- Darryl Gardens
- Davidsonville
- Davis
- Dawson
- Dawsonville
- Day
- Day Meadows
- Daysville
- Dayton
- Deale
- Deal Island
- Deans Meadows
- Deep Harbor Estates
- Deep Harbour
- Deep Landing
- Deep Landing
- Deep Run
- Deer Haven
- Deer Park
- Deerwood
- De La Plaine Manor
- Delight Meadows
- Denneys Delight
- Dennings
- Denton
- Dentsville
- Derwood
- Detour
- Devilbiss Estates
- Devon Farms
- Devonshire Forest
- Dickens
- Dickerson
- Dickeyville
- Dills Acres
- Discovery
- Distant View
- District Heights
- Dodge Park
- Dogwood
- Dogwood Flats
- Dogwood Village
- Dominion
- Doncaster
- Doncaster
- Donney Brook Farms
- Donnybrook
- Dorsey
- Dorsey Crossroads
- Dotts Corner
- Double Hills Estates
- Double Oak Estates
- Doubs
- Douglynne Woods
- Dover
- Dowell
- Downsville
- Drawbridge
- Drayden
- Drexel Woods
- Drumcliff
- Drum Point
- Drury
- Drybranch
- Dublin
- Dublin Manor
- Dubois
- Dudley Corners
- Dulaney Gate
- Dundalk
- Dunfretten Estates
- Dunkirk
- Dunkirk Town Center
- Dynard