Identifiers: city · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | Baltimore (city), MD | 585,708 |
| 2 | Ellicott City (CDP), MD | 75,947 |
| 3 | Dundalk (CDP), MD | 67,796 |
| 4 | Towson (CDP), MD | 59,553 |
| 5 | Catonsville (CDP), MD | 44,701 |
| 6 | Essex (CDP), MD | 40,505 |
| 7 | Woodlawn (CDP), MD | 39,986 |
| 8 | Owings Mills (CDP), MD | 35,674 |
| 9 | Pikesville (CDP), MD | 34,168 |
| 10 | Randallstown (CDP), MD | 33,655 |
| 11 | Middle River (CDP), MD | 33,203 |
| 12 | Parkville (CDP), MD | 31,812 |
| 13 | Milford Mill (CDP), MD | 30,622 |
| 14 | Perry Hall (CDP), MD | 29,409 |
| 15 | Carney (CDP), MD | 29,363 |
| 16 | Reisterstown (CDP), MD | 26,822 |
| 17 | Lochearn (CDP), MD | 25,511 |
| 18 | Cockeysville (CDP), MD | 24,184 |
| 19 | Arbutus (CDP), MD | 21,655 |
| 20 | Rosedale (CDP), MD | 19,961 |