RANKING · 2010 CENSUS · 10 SHOWN OF 10

Highest Irish population share, New Hampshire counties · 2010

New Hampshire counties ranked by the share of all residents who are Irish ancestry (2023 American Community Survey). A concentration measure: Irish residents as a percentage of total population. This list covers the 10 counties in New Hampshire that qualify, ranked against each other statewide.

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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 SHAREVS 2000

01Rockingham County, NHNH324,07726.9%–

02Carroll County, NHNH52,78424.7%–

03Hillsborough County, NHNH433,41522.8%–

04Belknap County, NHNH65,14720.7%–

05Merrimack County, NHNH158,07820.4%–

06Strafford County, NHNH135,04319.7%–

07Cheshire County, NHNH78,26919.1%–

08Grafton County, NHNH93,22518.7%–

09Coos County, NHNH31,34316.9%–

10Sullivan County, NHNH43,96116.3%–

SHOWING 1–10 OF 10

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