RANKING · 2010 CENSUS · 24 SHOWN OF 24

Least racially diverse, Maryland counties · 2010

Maryland counties with the lowest CensusEasy Diversity Score, where most residents share the same race or ethnicity (2023 ACS). This list covers the 24 counties in Maryland that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPDIVERSITY SCOREVS 2000

01Garrett County, MDMD28,3708+206%

02Carroll County, MDMD176,67720+108%

03Allegany County, MDMD66,84827+74%

04Queen Anne's County, MDMD54,44829+20%

05Cecil County, MDMD107,13129+97%

06Washington County, MDMD157,73136+61%

07Worcester County, MDMD54,45941+6%

08Calvert County, MDMD94,48442+25%

09Harford County, MDMD266,44644+53%

10Talbot County, MDMD38,23844+17%

11Kent County, MDMD19,56546+7%

12Caroline County, MDMD34,11647+22%

13Frederick County, MDMD302,88347+94%

14St. Mary's County, MDMD116,69249+28%

15Anne Arundel County, MDMD603,38056+40%

16Dorchester County, MDMD33,62860+11%

17Wicomico County, MDMD106,89961+18%

18Baltimore, MDMD569,99765+9%

19Baltimore County, MDMD847,65067+33%

20Prince George's County, MDMD970,37469+5%

21Somerset County, MDMD24,97370+11%

22Howard County, MDMD339,18374+42%

23Charles County, MDMD176,59374+32%

24Montgomery County, MDMD1,074,58285+18%

SHOWING 1–24 OF 24

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