| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Cumberland | 1 | 18,719 | 19,037 | -0.43% | 1,861 | 10 | City |
| Frostburg | 2 | 6,973 | 7,003 | -0.09% | 2,085 | 3 | City |
| Westernport | 3 | 1,752 | 1,796 | -0.4% | 1,993 | 1 | Town |
| Lonaconing | 4 | 974 | 998 | -0.41% | 2,691 | 0 | Town |
| Midland | 5 | 467 | 480 | -0.64% | 2,956 | 0 | Town |
| Barton | 6 | 452 | 462 | -0.44% | 2,184 | 0 | Town |
| Luke | 7 | 81 | 85 | -1.22% | 305 | 0 | Town |
Cumberland is the largest city in Allegany County, with a population of 18,719.
Luke is the smallest city in Allegany County, with a population of 81.
There are 7 cities in Allegany County, Maryland.