RANKING · 2025 ACS · 24 SHOWN OF 24

Most sparsely populated, Maryland counties

Maryland counties with the fewest residents per square mile (2023). This list covers the 24 counties in Maryland that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

RELATEDLargest by population Fastest growing Fastest shrinking Most densely populated Best broadband access Worst broadband access

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 2000

01Garrett County, MDMD28,37044−5%

02Dorchester County, MDMD33,62862+10%

03Kent County, MDMD19,56571+2%

04Somerset County, MDMD24,97378+1%

05Caroline County, MDMD34,116107+15%

06Worcester County, MDMD54,459116+17%

07Talbot County, MDMD38,238142+13%

08Queen Anne's County, MDMD54,448146+34%

09Allegany County, MDMD66,848158−11%

10Wicomico County, MDMD106,899285+26%

11Cecil County, MDMD107,131309+25%

12St. Mary's County, MDMD116,692325+35%

13Washington County, MDMD157,731345+20%

14Charles County, MDMD176,593386+46%

15Carroll County, MDMD176,677395+17%

16Calvert County, MDMD94,484443+27%

17Frederick County, MDMD302,883458+55%

18Harford County, MDMD266,446610+22%

19Howard County, MDMD339,1831,352+37%

20Baltimore County, MDMD847,6501,417+12%

21Anne Arundel County, MDMD603,3801,455+23%

22Prince George's County, MDMD970,3742,011+21%

23Montgomery County, MDMD1,074,5822,179+23%

24Baltimore, MDMD569,9977,042−12%

SHOWING 1–24 OF 24

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES