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RANKING · 2024 ACS · 10 SHOWN OF 10

Largest Irish population, New Hampshire counties

New Hampshire 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 10 counties in New Hampshire that qualify, ranked against each other statewide.

Irish Americans: full group profile →
SAME RANKING BYCitiesStatesMetros
Largest Irish population by state
All USAlaskaAlabamaArkansasArizonaCaliforniaColoradoFloridaGeorgiaIowaIdahoIllinoisIndianaKansasKentuckyLouisianaMassachusettsMarylandMaineMichiganMinnesotaMissouriMississippiMontanaNorth CarolinaNorth DakotaNebraskaNew HampshireNew JerseyNew MexicoNevadaNew YorkOhioOklahomaOregonPennsylvaniaSouth CarolinaSouth DakotaTennesseeTexasUtahVirginiaVermontWashingtonWisconsinWest VirginiaWyoming
RANKPLACESTATEPOPIRISH POPULATIONVS 2010
01Hillsborough County, NHNH433,41584,681−7%
02Rockingham County, NHNH324,07778,917−0%
03Merrimack County, NHNH158,07831,430+5%
04Strafford County, NHNH135,04328,611+19%
05Grafton County, NHNH93,22515,745−5%
06Belknap County, NHNH65,14714,689+18%
07Cheshire County, NHNH78,26911,966−19%
08Carroll County, NHNH52,78410,616−10%
09Sullivan County, NHNH43,9615,744−19%
10Coos County, NHNH31,3434,361−23%
SHOWING 1–10 OF 10

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