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. The median across all 24 is +2.1%. Biggest climber in the top 100 since 2020: Dorchester County, MD, up 13 places to #5.

Flip the list · Fastest shrinking, US counties →

MarylandAll states All rankings

SAME RANKING BYCities States Metros

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

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

02▲11Queen Anne's County, MDMD54,448+9.2%−10.3 pts

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

04▲12Worcester County, MDMD54,459+3.8%−29.1 pts

05▲13Dorchester County, MDMD33,628+3.4%+1.9 pts

06▲9Cecil County, MDMD107,131+3.3%−17.2 pts

07▲4Wicomico County, MDMD106,899+3.2%−10.7 pts

08▼3Anne Arundel County, MDMD603,380+2.6%−12.0 pts

09▼2St. Mary's County, MDMD116,692+2.6%−10.9 pts

10▲7Caroline County, MDMD34,116+2.5%−7.7 pts

11▲3Carroll County, MDMD176,677+2.2%−20.1 pts

12▼4Harford County, MDMD266,446+2.1%−17.9 pts

13▼11Howard County, MDMD339,183+2.1%−30.2 pts

14▼4Washington County, MDMD157,731+2.0%−6.7 pts

15▲6Kent County, MDMD19,565+1.9%−5.7 pts

16▲3Talbot County, MDMD38,238+1.9%−8.8 pts

17▼5Calvert County, MDMD94,484+1.8%−43.3 pts

18▲5Somerset County, MDMD24,973+1.4%−4.1 pts

19▼13Montgomery County, MDMD1,074,582+1.2%−14.2 pts

20▼16Prince George's County, MDMD970,374+0.3%−9.6 pts

21▼12Baltimore County, MDMD847,650-0.8%−9.8 pts

22▼2Garrett County, MDMD28,370-1.5%−7.6 pts

23▲1Allegany County, MDMD66,848-1.8%−1.8 pts

24▼2Baltimore, MDMD569,997-2.7%+8.8 pts

SHOWING 1–24 OF 24

Download CSV (full list, 24 rows)

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU POPULATION ESTIMATES