RANKING · 2024 ACS · 24 SHOWN OF 24

Highest Scotch-Irish population share, Maryland counties

Maryland counties ranked by the share of all residents who are Scotch-Irish ancestry (2023 American Community Survey). A concentration measure: Scotch-Irish residents as a percentage of total population. This list covers the 24 counties in Maryland that qualify, ranked against each other statewide.

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

YEAR2010 2020 2024

RANKPLACESTATEPOPSCOTCH-IRISH SHAREVS 2000

01Garrett County, MDMD28,3701.3%–

02Talbot County, MDMD38,2381.3%–

03Frederick County, MDMD302,8831.0%–

04St. Mary's County, MDMD116,6920.9%–

05Caroline County, MDMD34,1160.9%–

06Cecil County, MDMD107,1310.9%–

07Worcester County, MDMD54,4590.8%–

08Allegany County, MDMD66,8480.8%–

09Dorchester County, MDMD33,6280.8%–

10Kent County, MDMD19,5650.8%–

11Anne Arundel County, MDMD603,3800.8%–

12Carroll County, MDMD176,6770.8%–

13Washington County, MDMD157,7310.8%–

14Howard County, MDMD339,1830.7%–

15Queen Anne's County, MDMD54,4480.7%–

16Calvert County, MDMD94,4840.7%–

17Wicomico County, MDMD106,8990.7%–

18Harford County, MDMD266,4460.7%–

19Montgomery County, MDMD1,074,5820.6%–

20Baltimore County, MDMD847,6500.4%–

21Charles County, MDMD176,5930.3%–

22Baltimore, MDMD569,9970.3%–

23Somerset County, MDMD24,9730.2%–

24Prince George's County, MDMD970,3740.2%–

SHOWING 1–24 OF 24

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