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RANKING · 2024 ACS · 10 SHOWN OF 10

Highest Irish population share, New Hampshire counties

New Hampshire counties ranked by the share of all residents who are Irish ancestry (2024 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. The median across all 10 is 20.2%.

Irish Americans: full group profile →
SAME RANKING BYCitiesStatesMetros
Highest Irish population share by state
All USAlaskaAlabamaArkansasArizonaCaliforniaColoradoFloridaGeorgiaIowaIdahoIllinoisIndianaKansasKentuckyLouisianaMassachusettsMarylandMaineMichiganMinnesotaMissouriMississippiMontanaNorth CarolinaNorth DakotaNebraskaNew HampshireNew JerseyNew MexicoNevadaNew YorkOhioOklahomaOregonPennsylvaniaSouth CarolinaSouth DakotaTennesseeTexasUtahVirginiaVermontWashingtonWisconsinWest VirginiaWyoming
RANKPLACESTATEPOPIRISH SHAREVS 2010
01Rockingham County, NHNH324,07724.7%−2.2 pts
02▲3Belknap County, NHNH65,14722.7%+2.0 pts
03▲1Strafford County, NHNH135,04321.6%+1.9 pts
04▼2Carroll County, NHNH52,78420.5%−4.2 pts
05▲1Merrimack County, NHNH158,07820.2%−0.3 pts
06▼3Hillsborough County, NHNH433,41519.9%−3.0 pts
07▲2Grafton County, NHNH93,22517.1%−1.6 pts
08▼1Cheshire County, NHNH78,26915.5%−3.7 pts
09▼1Coos County, NHNH31,34313.9%−2.9 pts
10Sullivan County, NHNH43,96113.1%−3.2 pts
SHOWING 1–10 OF 10

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