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About the map

Maryland Map Extent

This Maryland county map displays its 23 counties and one independent city. Maryland (along with Missouri, Nevada, and Virginia) also have independent cities, government units outside the jurisdiction of any county.

Montgomery County has the highest population in Maryland and is adjacent to the District of Columbia. Prince George’s and Baltimore County are other populated counties in Maryland. Conversely, Kent County has the lowest population with less than 20,000 people.

For size, Frederick County is the largest occupying 667.7 square miles of area. If you include Baltimore City, it’s just 81.4 square miles. Then, Calvert County is the next smallest area along the Chesapeake Bay.

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Maryland county map

County Name Population (2020 est) County Map Area (sq mi) Locator Map FIPS Code
Allegany County 70,057
Allegany County Map Maryland
Allegany County
428.3
Allegany County Map Maryland Locator
Allegany County Map
24001
Anne Arundel County 582,777
Anne Arundel County Map Maryland
Anne Arundel County
422.3
Anne Arundel County Map Maryland Locator
Anne Arundel County Map
24003
Baltimore County 826,017
Baltimore County Map Maryland
Baltimore County
608.1
Baltimore County Map Maryland Locator
Baltimore County Map
24005
Calvert County 93,072
Calvert County Map Maryland
Calvert County
215.9
Calvert County Map Maryland Locator
Calvert County Map
24009
Caroline County 33,492
Caroline County Map Maryland
Caroline County
323.7
Caroline County Map Maryland Locator
Caroline County Map
24011
Carroll County 169,092
Carroll County Map Maryland
Carroll County
452.3
Carroll County Map Maryland Locator
Carroll County Map
24013
Cecil County 103,419
Cecil County Map Maryland
Cecil County
356.7
Cecil County Map Maryland Locator
Cecil County Map
24015
Charles County 164,436
Charles County Map Maryland
Charles County
461.7
Charles County Map Maryland Locator
Charles County Map
24017
Dorchester County 31,853
Dorchester County Map Maryland
Dorchester County
574.4
Dorchester County Map Maryland Locator
Dorchester County Map
24019
Frederick County 265,161
Frederick County Map Maryland
Frederick County
667.7
Frederick County Map Maryland Locator
Frederick County Map
24021
Garrett County 28,852
Garrett County Map Maryland
Garrett County
653
Garrett County Map Maryland Locator
Garrett County Map
24023
Harford County 256,805
Harford County Map Maryland
Harford County
444.9
Harford County Map Maryland Locator
Harford County Map
24025
Howard County 328,200
Howard County Map Maryland
Howard County
253.5
Howard County Map Maryland Locator
Howard County Map
24027
Kent County 19,192
Kent County Map Maryland
Kent County
281.9
Kent County Map Maryland Locator
Kent County Map
24029
Montgomery County 1,051,816
Montgomery County Map Maryland
Montgomery County
507.1
Montgomery County Map Maryland Locator
Montgomery County Map
24031
Prince George's County 909,612
Prince George's County Map Maryland
Prince George's County
487
Prince George's County Map Maryland Locator
Prince George's County Map
24033
Queen Anne's County 51,167
Queen Anne's County Map Maryland
Queen Anne's County
371.8
Queen Anne's County Map Maryland Locator
Queen Anne's County Map
24035
Saint Mary's County 114,687
Saint Mary's County Map Maryland
Saint Mary's County
365.1
Saint Mary's County Map Maryland Locator
Saint Mary's County Map
24037
Somerset County 25,453
Somerset County Map Maryland
Somerset County
328.1
Somerset County Map Maryland Locator
Somerset County Map
24039
Talbot County 36,972
Talbot County Map Maryland
Talbot County
276.2
Talbot County Map Maryland Locator
Talbot County Map
24041
Washington County 151,146
Washington County Map Maryland
Washington County
464.8
Washington County Map Maryland Locator
Washington County Map
24043
Wicomico County 103,990
Wicomico County Map Maryland
Wicomico County
382.8
Wicomico County Map Maryland Locator
Wicomico County Map
24045
Worcester County 52,403
Worcester County Map Maryland
Worcester County
475.2
Worcester County Map Maryland Locator
Worcester County Map
24047
Baltimore City 586,131
Baltimore City Map Maryland
Baltimore City
81.4
Baltimore City Map Maryland Locator
Baltimore City Map
24510

References

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