RANKING · 2024 ACS · 24 SHOWN OF 24

Highest American population share, Maryland counties

Maryland counties ranked by the share of all residents who are American ancestry (2024 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. The median across all 24 is 5.3%. Biggest climber in the top 100 since 2020: Garrett County, MD, up 11 places to #6.

American ancestry: full group profile →

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SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPAMERICAN SHAREVS 2010

01Somerset County, MDMD24,97320.2%+11.1 pts

02▲1Carroll County, MDMD176,67711.5%+3.0 pts

03▼1Dorchester County, MDMD33,62810.2%−6.8 pts

04Caroline County, MDMD34,1168.4%+1.4 pts

05▲10Talbot County, MDMD38,2387.1%−1.5 pts

06▲11Garrett County, MDMD28,3707.0%−6.6 pts

07▲2Wicomico County, MDMD106,8996.9%+0.8 pts

08▼1Kent County, MDMD19,5656.5%−1.4 pts

09▼3St. Mary's County, MDMD116,6926.2%−2.5 pts

10Allegany County, MDMD66,8485.9%−5.9 pts

11Washington County, MDMD157,7315.8%−2.7 pts

12▼4Cecil County, MDMD107,1315.3%−3.5 pts

13▼8Worcester County, MDMD54,4595.2%−1.8 pts

14▼2Queen Anne's County, MDMD54,4485.1%−1.0 pts

15▲1Calvert County, MDMD94,4844.7%−2.8 pts

16▼2Frederick County, MDMD302,8834.7%−1.6 pts

17▼4Harford County, MDMD266,4464.4%−1.8 pts

18▲1Baltimore County, MDMD847,6504.2%−0.9 pts

19▼1Anne Arundel County, MDMD603,3804.0%−0.4 pts

20Charles County, MDMD176,5933.7%−2.6 pts

21▲2Prince George's County, MDMD970,3743.0%+0.9 pts

22▼1Howard County, MDMD339,1832.9%−1.7 pts

23▼1Montgomery County, MDMD1,074,5822.8%0.0 pts

24Baltimore, MDMD569,9972.8%−1.7 pts

SHOWING 1–24 OF 24

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES