7 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Westminster | 1 | 20,928 | 20,130 | 0.64% | 3,095 | 7 | City |
| Taneytown | 2 | 8,806 | 7,266 | 3.01% | 2,621 | 3 | City |
| Hampstead | 3 | 6,311 | 6,242 | 0.19% | 1,887 | 3 | Town |
| Manchester | 4 | 5,458 | 5,404 | 0.17% | 2,286 | 2 | Town |
| Sykesville | 5 | 4,770 | 4,326 | 1.58% | 2,985 | 2 | Town |
| New Windsor | 6 | 1,911 | 1,452 | 4.2% | 2,589 | 1 | Town |
| Union Bridge | 7 | 949 | 939 | 0.21% | 836 | 1 | Town |
Westminster is the largest city in Carroll County, with a population of 20,928.
Union Bridge is the smallest city in Carroll County, with a population of 949.
There are 7 cities in Carroll County, Maryland.