RANKING · 1990 CENSUS · 24 SHOWN OF 24

Most racially diverse, Maryland counties · 1990

Maryland counties ranked by the CensusEasy Diversity Score (0 to 100), the chance two random residents are of a different 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

01Prince George's County, MDMD970,37473+12%

02Baltimore, MDMD569,99763+7%

03Somerset County, MDMD24,97362−2%

04Montgomery County, MDMD1,074,58258−19%

05Dorchester County, MDMD33,62853−3%

06Wicomico County, MDMD106,89947−10%

07Kent County, MDMD19,56546+6%

08Worcester County, MDMD54,45945+16%

09Charles County, MDMD176,59345−21%

10Howard County, MDMD339,18340−24%

11Talbot County, MDMD38,23839+2%

12Caroline County, MDMD34,11638−2%

13Calvert County, MDMD94,48437+9%

14St. Mary's County, MDMD116,69236−7%

15Baltimore County, MDMD847,65035−31%

16Anne Arundel County, MDMD603,38035−13%

17Queen Anne's County, MDMD54,44828+16%

18Harford County, MDMD266,44627−5%

19Washington County, MDMD157,73118−20%

20Frederick County, MDMD302,88318−26%

21Cecil County, MDMD107,13115+1%

22Carroll County, MDMD176,6778−15%

23Allegany County, MDMD66,8487−52%

24Garrett County, MDMD28,3702−20%

SHOWING 1–24 OF 24

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