RANKING · 2020 CENSUS · 10 SHOWN OF 10

Highest Scotch-Irish population share, New Hampshire counties · 2020

New Hampshire counties ranked by the share of all residents who are Scotch-Irish ancestry (2023 American Community Survey). A concentration measure: Scotch-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

RANKPLACESTATEPOPSCOTCH-IRISH SHAREVS 2000

01Carroll County, NHNH52,7842.0%–

02Grafton County, NHNH93,2251.5%–

03Coos County, NHNH31,3431.3%–

04Strafford County, NHNH135,0431.3%–

05Rockingham County, NHNH324,0771.3%–

06Sullivan County, NHNH43,9611.3%–

07Merrimack County, NHNH158,0781.3%–

08Belknap County, NHNH65,1471.2%–

09Cheshire County, NHNH78,2690.9%–

10Hillsborough County, NHNH433,4150.9%–

SHOWING 1–10 OF 10

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