RANKING · 2024 ACS · 24 SHOWN OF 24

Largest Irish population, Maryland counties

Maryland counties ranked by the number of residents who are 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.

Irish Americans: full group profile →

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SAME RANKING BYCities States Metros

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

YEAR2010 2020 2024

RANKPLACESTATEPOPIRISH POPULATIONVS 2010

01Baltimore County, MDMD847,65089,170−24%

02Montgomery County, MDMD1,074,58281,318−10%

03Anne Arundel County, MDMD603,38078,429−20%

04Harford County, MDMD266,44639,224−18%

05Frederick County, MDMD302,88337,104−7%

06Howard County, MDMD339,18334,174−12%

07Baltimore, MDMD569,99733,221−16%

08Carroll County, MDMD176,67730,819−3%

09Prince George's County, MDMD970,37423,192−26%

10Washington County, MDMD157,73117,512−15%

11Cecil County, MDMD107,13117,250−20%

12St. Mary's County, MDMD116,69214,732−17%

13Calvert County, MDMD94,48413,373−13%

14Wicomico County, MDMD106,89912,139−8%

15Charles County, MDMD176,59310,690−31%

16Allegany County, MDMD66,8488,556−22%

17Queen Anne's County, MDMD54,4487,730−26%

18Worcester County, MDMD54,4597,716−17%

19Talbot County, MDMD38,2386,224−9%

20Garrett County, MDMD28,3703,844+12%

21Caroline County, MDMD34,1163,686−28%

22Kent County, MDMD19,5653,299+6%

23Dorchester County, MDMD33,6283,217−10%

24Somerset County, MDMD24,9731,276−42%

SHOWING 1–24 OF 24

Download CSV (full list, 24 rows)

UPDATED 2026-08-08 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES