Fastest growing counties in Maryland.
County | Rank | Change (2020) | 2024 Pop. | 2020 Pop. |
|---|---|---|---|---|
| Frederick County | 1 | 9.7% | 299,242 | 272,786 |
| Queen Anne's County | 2 | 6.52% | 53,296 | 50,033 |
| Charles County | 3 | 4.25% | 173,835 | 166,741 |
| Worcester County | 4 | 3.59% | 54,408 | 52,522 |
| Carroll County | 5 | 2.81% | 177,806 | 172,941 |
| Somerset County | 6 | 2.65% | 25,212 | 24,561 |
| Cecil County | 7 | 2.58% | 106,474 | 103,800 |
| Calvert County | 8 | 2.13% | 94,897 | 92,915 |
| Dorchester County | 9 | 1.98% | 33,175 | 32,530 |
| Harford County | 10 | 1.62% | 265,473 | 261,230 |
| St. Mary's County | 11 | 1.56% | 115,779 | 113,999 |
| Wicomico County | 12 | 1.5% | 105,114 | 103,565 |
| Caroline County | 13 | 1.47% | 33,759 | 33,270 |
| Howard County | 14 | 1.15% | 336,636 | 332,814 |
| Anne Arundel County | 15 | 1.14% | 595,817 | 589,106 |
| Washington County | 16 | 1.08% | 156,369 | 154,697 |
| Kent County | 17 | 1% | 19,311 | 19,120 |
| Talbot County | 18 | 0.92% | 37,832 | 37,488 |
| Montgomery County | 19 | 0.28% | 1,063,881 | 1,060,904 |
| Allegany County | 20 | -1% | 67,280 | 67,960 |
| Baltimore County | 21 | -1.17% | 843,420 | 853,387 |
| Prince George's County | 22 | -1.81% | 947,880 | 965,365 |
| Garrett County | 23 | -1.88% | 28,258 | 28,798 |
| Baltimore city | 24 | -3.74% | 561,371 | 583,157 |