| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Dailsville | city | Maryland | United States | 38.55 | -76.16 | 3 | |
| Dairy Manor Farms | city | Maryland | United States | 39.65 | -76.67 | 830 | |
| Daisy | city | Maryland | United States | 39.29 | -77.07 | 830 | |
| Daisy Hill Estates | city | Maryland | United States | 39.29 | -77.07 | 830 | |
| Daisy Meadows | city | Maryland | United States | 39.40 | -77.02 | 830 | |
| Daisy Meadows | city | Maryland | United States | 39.32 | -77.06 | 830 | |
| Daisy Ridge | city | Maryland | United States | 39.61 | -77.07 | 830 | |
| Daisy Woods | city | Maryland | United States | 39.27 | -77.07 | 830 | |
| Dales Delight | city | Maryland | United States | 39.38 | -77.12 | 830 | |
| Damascus | city | Maryland | United States | 39.29 | -77.20 | 830 | |
| Damascus Gardens | city | Maryland | United States | 39.28 | -77.20 | 830 | |
| Damascus Hill | city | Maryland | United States | 39.26 | -77.20 | 830 | |
| Damascus Manor | city | Maryland | United States | 39.28 | -77.21 | 830 | |
| Damascus Terrace | city | Maryland | United States | 39.28 | -77.20 | 830 | |
| Damascus Valley Estates | city | Maryland | United States | 39.29 | -77.18 | 830 | |
| Damascus Valley Park | city | Maryland | United States | 39.28 | -77.20 | 830 | |
| Damascus View | city | Maryland | United States | 39.28 | -77.21 | 830 | |
| Dameron | city | Maryland | United States | 38.15 | -76.37 | 49 | |
| Dames Quarter | city | Maryland | United States | 38.19 | -75.90 | 3 | |
| Daniel | city | Maryland | United States | 39.44 | -77.05 | 830 | |
| Daniels | city | Maryland | United States | 39.32 | -76.82 | 383 | |
| Daniels Park | city | Maryland | United States | 39.01 | -76.92 | 78 | |
| Dans | city | Maryland | United States | 39.53 | -75.83 | 49 | |
| Danville | city | Maryland | United States | 39.51 | -78.93 | 1669 | |
| Danville | city | Maryland | United States | 38.69 | -76.92 | 196 | |
| Danwood | city | Maryland | United States | 38.43 | -75.55 | 42 | |
| Danza Village | city | Maryland | United States | 39.13 | -76.67 | 101 | |
| Dar | city | Maryland | United States | 39.69 | -76.70 | 830 | |
| Darby Delight | city | Maryland | United States | 39.41 | -77.22 | 830 | |
| Darby-Lux | city | Maryland | United States | 39.43 | -77.25 | 830 | |
| Dares (historical) | city | Maryland | United States | 38.56 | -76.54 | 104 | |
| Dares Beach | city | Maryland | United States | 38.56 | -76.52 | 0 | |
| Dargan | city | Maryland | United States | 39.38 | -77.73 | 830 | |
| Darinton (historical) | city | Maryland | United States | 39.21 | -76.49 | 0 | |
| Darleigh Manor | city | Maryland | United States | 39.39 | -76.47 | 147 | |
| Darlington | city | Maryland | United States | 39.64 | -76.20 | 344 | |
| Darlington Mobile Home Park | city | Maryland | United States | 39.65 | -76.24 | 400 | |
| Darnall | city | Maryland | United States | 38.79 | -76.64 | 131 | |
| Darnestown | city | Maryland | United States | 39.10 | -77.29 | 344 | |
| Darnestown Hills | city | Maryland | United States | 39.10 | -77.28 | 334 | |
| Darnestown Knolls | city | Maryland | United States | 39.10 | -77.29 | 344 | |
| Darryl Gardens | city | Maryland | United States | 39.41 | -76.41 | 101 | |
| Dasher Green | city | Maryland | United States | 39.19 | -76.85 | 324 | |
| Daugherty Town | city | Maryland | United States | 37.99 | -75.85 | 3 | |
| Davidsonville | city | Maryland | United States | 38.92 | -76.63 | 98 | |
| Davidsonville Farmettes | city | Maryland | United States | 38.97 | -76.67 | 147 | |
| Davidsonville Gardens | city | Maryland | United States | 38.89 | -76.66 | 98 | |
| Davidsonville Woods | city | Maryland | United States | 38.91 | -76.66 | 75 | |
| Davis | city | Maryland | United States | 39.35 | -77.20 | 830 | |
| Davis (historical) | city | Maryland | United States | 39.32 | -76.86 | 364 | |
| Dawson | city | Maryland | United States | 39.48 | -78.94 | 1115 | |
| Dawsonville | city | Maryland | United States | 39.13 | -77.34 | 275 | |
| Day | city | Maryland | United States | 39.39 | -77.06 | 830 | |
| Day Meadows | city | Maryland | United States | 39.68 | -76.27 | 400 | |
| Daybreak Estates | city | Maryland | United States | 39.34 | -76.52 | 62 | |
| Dayspring Estates | city | Maryland | United States | 39.63 | -76.90 | 830 | |
| Daysville | city | Maryland | United States | 39.49 | -77.30 | 830 | |
| Daysville Acres | city | Maryland | United States | 39.49 | -77.29 | 830 | |
| Dayton | city | Maryland | United States | 39.24 | -76.99 | 830 | |
| Dayton Meadows | city | Maryland | United States | 39.24 | -76.99 | 830 |