RANKING · 2010 CENSUS · 24 SHOWN OF 24

Largest Irish population, Maryland counties · 2010

Maryland counties ranked by the number of residents who are Irish ancestry, from the 2023 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.

MarylandAll states All rankings

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 2000

01Baltimore County, MDMD847,650116,830–

02Anne Arundel County, MDMD603,38098,081–

03Montgomery County, MDMD1,074,58290,847–

04Harford County, MDMD266,44647,972–

05Frederick County, MDMD302,88339,931–

06Baltimore, MDMD569,99739,501–

07Howard County, MDMD339,18338,726–

08Carroll County, MDMD176,67731,877–

09Prince George's County, MDMD970,37431,203–

10Cecil County, MDMD107,13121,431–

11Washington County, MDMD157,73120,653–

12St. Mary's County, MDMD116,69217,763–

13Charles County, MDMD176,59315,550–

14Calvert County, MDMD94,48415,431–

15Wicomico County, MDMD106,89913,200–

16Allegany County, MDMD66,84810,931–

17Queen Anne's County, MDMD54,44810,496–

18Worcester County, MDMD54,4599,296–

19Talbot County, MDMD38,2386,813–

20Caroline County, MDMD34,1165,113–

21Dorchester County, MDMD33,6283,580–

22Garrett County, MDMD28,3703,420–

23Kent County, MDMD19,5653,109–

24Somerset County, MDMD24,9732,199–

SHOWING 1–24 OF 24

Download CSV (full list, 24 rows)

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