RANKING · 2025 ESTIMATES · 24 SHOWN OF 24

Fastest growing, Maryland counties

Maryland counties ranked by population growth from the 2020 census to 2025. 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 2000

01Frederick County, MDMD302,883+11.5%−18.5 pts

02Queen Anne's County, MDMD54,448+9.2%−10.3 pts

03Charles County, MDMD176,593+6.0%−13.2 pts

04Worcester County, MDMD54,459+3.8%−29.1 pts

05Dorchester County, MDMD33,628+3.4%+1.9 pts

06Cecil County, MDMD107,131+3.3%−17.2 pts

07Wicomico County, MDMD106,899+3.2%−10.7 pts

08Anne Arundel County, MDMD603,380+2.6%−12.0 pts

09St. Mary's County, MDMD116,692+2.6%−10.9 pts

10Caroline County, MDMD34,116+2.5%−7.7 pts

11Carroll County, MDMD176,677+2.2%−20.1 pts

12Harford County, MDMD266,446+2.1%−17.9 pts

13Howard County, MDMD339,183+2.1%−30.2 pts

14Washington County, MDMD157,731+2.0%−6.7 pts

15Kent County, MDMD19,565+1.9%−5.7 pts

16Talbot County, MDMD38,238+1.9%−8.8 pts

17Calvert County, MDMD94,484+1.8%−43.3 pts

18Somerset County, MDMD24,973+1.4%−4.1 pts

19Montgomery County, MDMD1,074,582+1.2%−14.2 pts

20Prince George's County, MDMD970,374+0.3%−9.6 pts

21Baltimore County, MDMD847,650-0.8%−9.8 pts

22Garrett County, MDMD28,370-1.5%−7.6 pts

23Allegany County, MDMD66,848-1.8%−1.8 pts

24Baltimore, MDMD569,997-2.7%+8.8 pts

SHOWING 1–24 OF 24

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU POPULATION ESTIMATES