RANKING · 2000 CENSUS · 24 SHOWN OF 24

Fastest growing, Maryland counties · 2000

Maryland counties ranked by population growth since the prior decennial census. 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 shrinking Most densely populated Most sparsely populated Best broadband access Worst broadband access

YEAR2000 2010 2020

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01Calvert County, MDMD94,484+45.1%+0%

02Worcester County, MDMD54,459+32.9%+0%

03Howard County, MDMD339,183+32.3%+0%

04Frederick County, MDMD302,883+30.0%+0%

05Carroll County, MDMD176,677+22.3%+0%

06Cecil County, MDMD107,131+20.5%+0%

07Harford County, MDMD266,446+20.0%+0%

08Queen Anne's County, MDMD54,448+19.5%+0%

09Charles County, MDMD176,593+19.2%+0%

10Montgomery County, MDMD1,074,582+15.4%+0%

11Anne Arundel County, MDMD603,380+14.6%+0%

12Wicomico County, MDMD106,899+13.9%+0%

13St. Mary's County, MDMD116,692+13.5%+0%

14Talbot County, MDMD38,238+10.7%+0%

15Caroline County, MDMD34,116+10.1%+0%

16Prince George's County, MDMD970,374+9.9%+0%

17Baltimore County, MDMD847,650+9.0%+0%

18Washington County, MDMD157,731+8.7%+0%

19Kent County, MDMD19,565+7.6%+0%

20Garrett County, MDMD28,370+6.1%+0%

21Somerset County, MDMD24,973+5.6%+0%

22Dorchester County, MDMD33,628+1.4%+0%

23Allegany County, MDMD66,848-0.0%+0%

24Baltimore, MDMD569,997-11.5%+0%

SHOWING 1–24 OF 24

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