RANKING · 2000 CENSUS · 24 SHOWN OF 24

Fastest growing, Maryland counties · 2000

Maryland counties ranked by population growth from the 1990 census to 2000. 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 population gained Most population lost Most densely populated Most sparsely populated

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION GROWTHVS –

01Calvert County, MDMD94,484+45.1%–

02Worcester County, MDMD54,459+32.9%–

03Howard County, MDMD339,183+32.3%–

04Frederick County, MDMD302,883+30.0%–

05Carroll County, MDMD176,677+22.3%–

06Cecil County, MDMD107,131+20.5%–

07Harford County, MDMD266,446+20.0%–

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

09Charles County, MDMD176,593+19.2%–

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

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

12Wicomico County, MDMD106,899+13.9%–

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

14Talbot County, MDMD38,238+10.7%–

15Caroline County, MDMD34,116+10.1%–

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

17Baltimore County, MDMD847,650+9.0%–

18Washington County, MDMD157,731+8.7%–

19Kent County, MDMD19,565+7.6%–

20Garrett County, MDMD28,370+6.1%–

21Somerset County, MDMD24,973+5.6%–

22Dorchester County, MDMD33,628+1.4%–

23Allegany County, MDMD66,848-0.0%–

24Baltimore, MDMD569,997-11.5%–

SHOWING 1–24 OF 24

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS