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List of Maryland Counties and County Seats





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The U.S. state of Maryland is divided into 24 counties. Explore list of California Counties and their County Seats in alphabetical order populations, areas and the date of formation.

List of Maryland Counties and County Seat

S.NCountyCounty SeatPopulation(2011)Area Formed
1Allegany CountyCumberland74,012430 sq mi1789
2Anne Arundel CountyAnnapolis550,488588 sq mi1650
3Baltimore CityBaltimore City621,34292 sq mi1851
4Baltimore CountyTowson817,455682 sq mi1659
5Calvert CountyPrince Frederick89,628345 sq mi1654
6Caroline CountyDenton32,718326 sq mi1773
7Carroll CountyWestminster167,217452 sq mi1837
8Cecil CountyElkton101,696418 sq mi1672
9Charles CountyLa Plata150,592643 sq mi1658
10Dorchester CountyCambridge32,551540 sq mi1668
11Frederick CountyFrederick239,582667 sq mi1748
12Garrett CountyOakland29,854656 sq mi1872
13Harford CountyBel Air248,622527 sq mi1773
14Howard CountyEllicott City299,430254 sq mi1851
15Kent CountyChestertown20,191414 sq mi1642
16Montgomery CountyRockville1,004,709507 sq mi1776
17Prince George's CountyUpper Marlboro881,138498 sq mi1696
18Queen Anne's CountyCentreville48,595510 sq mi1706
19Saint Mary's CountyLeonardtown108,987611 sq mi1637
20Somerset CountyPrincess Anne26,253611 sq mi1666
21Talbot CountyEaston38,098477 sq mi1662
22Washington CountyHagerstown149,180468 sq mi1776
23Wicomico CountySalisbury100,647400 sq mi1867
24Worcester CountySnow Hill51,578695 sq mi1742