RANKING · 2020 CENSUS · 24 SHOWN OF 24

Least racially diverse, Maryland counties · 2020

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+202%

02Carroll County, MDMD176,67730+206%

03Allegany County, MDMD66,84830+91%

04Queen Anne's County, MDMD54,44835+46%

05Cecil County, MDMD107,13138+161%

06Worcester County, MDMD54,45943+11%

07Calvert County, MDMD94,48450+47%

08Kent County, MDMD19,56550+18%

09Washington County, MDMD157,73151+126%

10Talbot County, MDMD38,23852+38%

11Caroline County, MDMD34,11654+42%

12Harford County, MDMD266,44655+91%

13St. Mary's County, MDMD116,69256+47%

14Frederick County, MDMD302,88362+156%

15Dorchester County, MDMD33,62869+26%

16Anne Arundel County, MDMD603,38069+73%

17Wicomico County, MDMD106,89971+36%

18Somerset County, MDMD24,97371+13%

19Baltimore, MDMD569,99773+22%

20Prince George's County, MDMD970,37473+12%

21Baltimore County, MDMD847,65078+55%

22Charles County, MDMD176,59379+40%

23Howard County, MDMD339,18386+65%

24Montgomery County, MDMD1,074,58291+27%

SHOWING 1–24 OF 24

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