RANKING · 2024 ACS · 24 SHOWN OF 24

Largest Scotch-Irish population, Maryland counties

Maryland counties ranked by the number of residents who are Scotch-Irish ancestry, from the 2024 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 24 counties in Maryland that qualify, ranked against each other statewide. The median across all 24 is 949.

Scotch-Irish Americans: full group profile →

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SAME RANKING BYCities States Metros

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YEAR2010 2020 2024

RANKPLACESTATEPOPSCOTCH-IRISH POPULATIONVS 2010

01Montgomery County, MDMD1,074,5826,581−50%

02Anne Arundel County, MDMD603,3804,853−54%

03Baltimore County, MDMD847,6503,780−67%

04▲1Frederick County, MDMD302,8832,862−49%

05▼1Howard County, MDMD339,1832,467−41%

06Baltimore, MDMD569,9971,911−53%

07Harford County, MDMD266,4461,731−66%

08▲1Prince George's County, MDMD970,3741,667−64%

09▼1Carroll County, MDMD176,6771,358−56%

10Washington County, MDMD157,7311,200−44%

11▲3St. Mary's County, MDMD116,6921,068−43%

12▲1Cecil County, MDMD107,131949−62%

13▲2Wicomico County, MDMD106,899692−55%

14▼2Calvert County, MDMD94,484637−71%

15▼4Charles County, MDMD176,593585−72%

16Allegany County, MDMD66,848558−67%

17Talbot County, MDMD38,238482−52%

18▲1Worcester County, MDMD54,459454−58%

19▲1Garrett County, MDMD28,370372−43%

20▼2Queen Anne's County, MDMD54,448363−75%

21Caroline County, MDMD34,116308−26%

22Dorchester County, MDMD33,628269−28%

23Kent County, MDMD19,565157−67%

24Somerset County, MDMD24,97359−79%

SHOWING 1–24 OF 24

Download CSV (full list, 24 rows)

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