List of counties in Maryland

Wikimedia list article

There are twenty-three counties and Baltimore City in the U.S. state of Maryland. Though an independent city rather than a county, the City of Baltimore by some is considered the equal of a county for most purposes and is a county-equivalent.

Alphabetical listing

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County
FIPS code[1] County seat[2][3] Established[2][3] Origin[2] Meaning of name[2] Population
(2020)[4]
Area[3][5] Map
Allegany County 001 Cumberland 1789 Formed from part of Washington County From the Lenape Indian word oolikhanna, which means "beautiful stream" 68,106 430 sq mi
(1,114 km2)
 
Anne Arundel County 003 Annapolis 1650 Formed from part of St. Mary's County Anne Arundell was the maiden name of the wife of Cecilius Calvert, 2nd Baron Baltimore. Between 1654 and 1658 it was known as Providence County by Puritan settlers 588,261 588 sq mi
(1,523 km2)
 
Baltimore County 005 Towson 1659 Formed from unorganized territory Cecilius Calvert, 2nd Baron Baltimore, first proprietor of the Maryland colony 854,535 682 sq mi
(1,766 km2)
 
Baltimore City 510 Baltimore City 1851 Founded in 1729. Detached in 1851 from Baltimore County Cecilius Calvert, 2nd Baron Baltimore, first proprietor of the Maryland colony 585,708 92 sq mi
(238 km2)
 
Calvert County 009 Prince Frederick 1654 Formed as Patuxent County from unorganized territory. Renamed Calvert County in 1658 The Calvert family; prior to 1658 it was called Patuxent County, after the Patuxent Indians, a branch of the Algonquians 92,783 345 sq mi
(894 km2)
 
Caroline County 011 Denton 1773 From parts of Dorchester County and Queen Anne's County Lady Caroline Eden, daughter of Charles Calvert, 5th Baron Baltimore 33,293 326 sq mi
(844 km2)
 
Carroll County 013 Westminster 1837 From parts of Baltimore County and Frederick County Charles Carroll of Carrollton, a representative to the Continental Congress and signatory of the Declaration of Independence 172,891 452 sq mi
(1,171 km2)
 
Cecil County 015 Elkton 1674 From parts of Baltimore County and Kent County Cecil is an Anglicized form of the first name of Cecilius Calvert, 2nd Baron Baltimore 103,725 418 sq mi
(1,083 km2)
 
Charles County 017 La Plata 1658 From unorganized territory Charles Calvert, 3rd Baron Baltimore, second proprietor of the Maryland colony 166,617 643 sq mi
(1,665 km2)
 
Dorchester County 019 Cambridge 1668 From unorganized territory Dorchester in Dorset, England; the Earl of Dorset was a friend of the Calvert family 32,531 983 sq mi
(2,546 km2)
 
Frederick County 021 Frederick 1748 From part of Prince George's County Frederick Calvert, 6th Baron Baltimore, final proprietor of the Maryland colony 271,717 667 sq mi
(1,728 km2)
 
Garrett County 023 Oakland 1872 From part of Allegany County John Work Garrett, president of the Baltimore and Ohio Railroad 28,806 656 sq mi
(1,699 km2)
 
Harford County 025 Bel Air 1773 From part of Baltimore County Henry Harford, illegitimate son of Frederick Calvert, 6th Baron Baltimore 260,924 527 sq mi
(1,365 km2)
 
Howard County 027 Ellicott City 1851 From parts of Anne Arundel County and Baltimore County John Eager Howard, an American Revolutionary War officer and governor of Maryland 332,317 254 sq mi
(658 km2)
 
Kent County 029 Chestertown 1642 From unorganized territory The English county of Kent 19,198 414 sq mi
(1,072 km2)
 
Montgomery County 031 Rockville 1776 From part of Frederick County Richard Montgomery, an American Revolutionary War general 1,062,061 507 sq mi
(1,313 km2)
 
Prince George's County 033 Upper Marlboro 1696 From parts of Calvert County and Charles County Prince George of Denmark, the husband of Queen Anne of Great Britain 967,201 498 sq mi
(1,290 km2)
 
Queen Anne's County 035 Centreville 1706 From parts of Talbot County Anne, Queen of Great Britain 49,874 510 sq mi
(1,321 km2)
 
Somerset County 039 Princess Anne 1666 From unorganized territory. Mary, Lady Somerset, sister-in-law of Cecilius Calvert, 2nd Baron Baltimore 24,620 611 sq mi
(1,582 km2)
 
St. Mary's County 037 Leonardtown 1637 From unorganized territory. Was named Potomac County between 1654 and 1658. The Virgin Mary, first county named in a colony intended to be a haven for Catholics 113,777 611 sq mi
(1,582 km2)
 
Talbot County 041 Easton 1662 From part of Kent County Grace, Lady Talbot, sister of Cecilius Calvert, 2nd Baron Baltimore 37,526 477 sq mi
(1,235 km2)
 
Washington County 043 Hagerstown 1776 From part of Frederick County George Washington, first President of the United States 154,705 468 sq mi
(1,212 km2)
 
Wicomico County 045 Salisbury 1867 From parts of Somerset County and Worcester County The Wicomico River; in Lenape, wicko mekee indicated "a place where houses are built", possibly in reference to a settlement 103,588 400 sq mi
(1,036 km2)
 
Worcester County 047 Snow Hill 1742 From part of Somerset County Mary Arundell, the wife of Sir John Somerset, son of Henry Somerset, 1st Marquess of Worcester, and sister of Anne Arundell, the wife of Cecilius Calvert, 2nd Baron Baltimore 52,460 695 sq mi
(1,800 km2)
 
 
Counties of Maryland.

Former counties

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County Years of existence Etymology
Old Charles County 1650–1654 Charles I, King of England
Durham County 1669–1672 The English County Durham
Old Worcester County 1672–1685 Mary Arundell, the wife of Sir John Somerset, son of the 1st Marquess of Worcester,
and sister of Anne Arundell, wife of Cæcilius Calvert, 2nd Baron Baltimore

References

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  1. "EPA County FIPS Code Listing". U.S. Environmental Protection Agency. Archived from the original on 2004-09-28. Retrieved 2008-02-23.
  2. 2.0 2.1 2.2 2.3 "Counties". Maryland Manual Online. Archived from the original on 2019-07-12. Retrieved 2007-06-24.
  3. 3.0 3.1 3.2 National Association of Counties. "NACo County Explorer". Retrieved 2015-10-25.
  4. "U.S. Census website". United States Census Bureau. Retrieved 2021-08-12.
  5. "Maryland QuickFacts". U.S. Census Bureau. Archived from the original on 2016-02-17. Retrieved 2007-06-22.