12 cities
| City | County | 2025 Pop. ↓ |
|---|---|---|
| Kemp Mill | Montgomery County | 14,482 |
| Kettering | Prince George's County | 14,144 |
| Kingsville | Baltimore County | 4,735 |
| Konterra | Montgomery County | 3,248 |
| Kensington | Montgomery County | 2,096 |
| Kingstown | Kent County | 1,909 |
| Keedysville | Washington County | 1,219 |
| Kent Narrows | Queen Anne's County | 581 |
| Kennedyville | Kent County | 520 |
| Kitzmiller | Garrett County | 289 |
| Klondike | Allegany County | 255 |
| Kemps Mill | Washington County | 2 |