Identifiers: city · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | Baltimore (city), MD | 585,708 |
| 2 | Columbia (CDP), MD | 104,681 |
| 3 | Ellicott City (CDP), MD | 75,947 |
| 4 | Glen Burnie (CDP), MD | 72,891 |
| 5 | Dundalk (CDP), MD | 67,796 |
| 6 | Bowie (city), MD | 58,329 |
| 7 | Severn (CDP), MD | 57,118 |
| 8 | Catonsville (CDP), MD | 44,701 |
| 9 | Odenton (CDP), MD | 42,947 |
| 10 | Annapolis (city), MD | 40,812 |
| 11 | Essex (CDP), MD | 40,505 |
| 12 | Woodlawn (CDP), MD | 39,986 |
| 13 | Severna Park (CDP), MD | 39,933 |
| 14 | Owings Mills (CDP), MD | 35,674 |
| 15 | Pikesville (CDP), MD | 34,168 |
| 16 | Randallstown (CDP), MD | 33,655 |
| 17 | Pasadena (CDP), MD | 32,979 |
| 18 | Milford Mill (CDP), MD | 30,622 |
| 19 | Laurel (city), MD | 30,060 |
| 20 | Crofton (CDP), MD | 29,641 |