RANKING · 2010 CENSUS · 24 SHOWN OF 24

Fastest shrinking, Maryland counties · 2010

Maryland counties with the steepest population decline from the 2000 census to 2010. 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 Most population gained Most population lost Most densely populated Most sparsely populated

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01Baltimore, MDMD569,997-4.6%−60%

02Allegany County, MDMD66,848+0.2%−1081%

03Garrett County, MDMD28,370+0.8%−86%

04Kent County, MDMD19,565+5.2%−31%

05Dorchester County, MDMD33,628+6.3%+337%

06Baltimore County, MDMD847,650+6.7%−25%

07Somerset County, MDMD24,973+7.0%+25%

08Prince George's County, MDMD970,374+7.7%−22%

09Anne Arundel County, MDMD603,380+9.8%−33%

10Worcester County, MDMD54,459+10.6%−68%

11Carroll County, MDMD176,677+10.8%−52%

12Caroline County, MDMD34,116+11.1%+9%

13Montgomery County, MDMD1,074,582+11.3%−27%

14Talbot County, MDMD38,238+11.7%+10%

15Washington County, MDMD157,731+11.8%+36%

16Harford County, MDMD266,446+12.0%−40%

17Howard County, MDMD339,183+15.8%−51%

18Wicomico County, MDMD106,899+16.6%+20%

19Cecil County, MDMD107,131+17.6%−14%

20Queen Anne's County, MDMD54,448+17.8%−8%

21Calvert County, MDMD94,484+19.0%−58%

22Frederick County, MDMD302,883+19.5%−35%

23Charles County, MDMD176,593+21.6%+13%

24St. Mary's County, MDMD116,692+22.0%+63%

SHOWING 1–24 OF 24

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