Maryland Counties Map
Hover/click a county for data.
| Name | 2022 Population | Growth Since 2010 | Land Area (mi²) | Density (mi²) |
|---|---|---|---|---|
| Montgomery County | 1,057,320 | 8.38% | 492.91 | 2,145.05 |
| Prince George's County | 908,451 | 4.85% | 482.71 | 1,881.98 |
| Baltimore County | 825,903 | 2.39% | 598.36 | 1,380.27 |
| Anne Arundel County | 590,367 | 9.47% | 414.89 | 1,422.96 |
| Baltimore City County | 566,631 | -8.74% | 80.94 | 7,000.30 |
| Howard County | 334,897 | 16.03% | 250.94 | 1,334.55 |
| Frederick County | 273,359 | 16.71% | 660.45 | 413.90 |
| Harford County | 260,118 | 6.07% | 437.10 | 595.10 |
| Carroll County | 168,987 | 1.06% | 447.60 | 377.54 |
| Charles County | 168,600 | 14.57% | 457.78 | 368.30 |
| Washington County | 152,228 | 3.05% | 457.80 | 332.52 |
| St. Mary's County | 115,880 | 9.57% | 357.39 | 324.24 |
| Wicomico County | 105,304 | 6.40% | 374.42 | 281.25 |
| Cecil County | 103,488 | 2.30% | 346.28 | 298.86 |
| Calvert County | 93,905 | 5.53% | 213.18 | 440.50 |
| Allegany County | 68,841 | -8.17% | 424.16 | 162.30 |
| Worcester County | 53,224 | 3.35% | 468.28 | 113.66 |
| Queen Anne's County | 51,080 | 6.85% | 371.68 | 137.43 |
| Talbot County | 37,502 | -1.00% | 268.54 | 139.65 |
| Caroline County | 33,706 | 1.98% | 319.44 | 105.52 |
| Dorchester County | 31,836 | -2.61% | 540.75 | 58.87 |
| Garrett County | 28,657 | -4.92% | 647.10 | 44.29 |
| Somerset County | 25,646 | -3.09% | 319.73 | 80.21 |
| Kent County | 19,386 | -4.09% | 277.03 | 69.98 |
- Maryland State Data Center
- US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
- US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
- American Community Survey (2009 - 2013)
- Census QuickFacts
- Historical Populations of States and Counties (1790 - 1990)