RANKING · 2020 CENSUS · 24 SHOWN OF 24

Highest American population share, Maryland counties · 2020

Maryland counties ranked by the share of all residents who are American ancestry (2020 American Community Survey). A concentration measure: American residents as a percentage of total population. This list covers the 24 counties in Maryland that qualify, ranked against each other statewide.

American ancestry: full group profile →

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SAME RANKING BYCities States Metros

RELATEDLargest American population Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share Largest Iraqi population

YEAR2010 2020 2024

RANKPLACESTATEPOPAMERICAN SHAREVS 2010

01Somerset County, MDMD24,97319.4%+112%

02Dorchester County, MDMD33,62816.4%−3%

03Carroll County, MDMD176,67712.1%+43%

04Caroline County, MDMD34,11610.5%+51%

05Worcester County, MDMD54,4597.9%+12%

06St. Mary's County, MDMD116,6927.1%−19%

07Kent County, MDMD19,5657.1%−10%

08Cecil County, MDMD107,1317.1%−19%

09Wicomico County, MDMD106,8996.7%+11%

10Allegany County, MDMD66,8486.6%−44%

11Washington County, MDMD157,7316.2%−27%

12Queen Anne's County, MDMD54,4486.1%+0%

13Harford County, MDMD266,4466.0%−4%

14Frederick County, MDMD302,8835.9%−6%

15Talbot County, MDMD38,2385.8%−33%

16Calvert County, MDMD94,4845.6%−25%

17Garrett County, MDMD28,3705.5%−59%

18Anne Arundel County, MDMD603,3804.8%+10%

19Baltimore County, MDMD847,6504.2%−17%

20Charles County, MDMD176,5934.0%−36%

21Howard County, MDMD339,1833.6%−22%

22Montgomery County, MDMD1,074,5823.2%+10%

23Prince George's County, MDMD970,3743.0%+51%

24Baltimore, MDMD569,9972.9%−34%

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS