RANKING · 2024 ACS · 10 SHOWN OF 10

Largest foreign-born population, New Hampshire counties

New Hampshire counties with the most residents born outside the United States, as of the 2024 American Community Survey. Ranked by number of people, not share. 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

RELATEDMost residents with a disability Largest veteran population Most uninsured people Largest senior population Most unmarried people Most unmarried men

YEAR2010 2020 2024

RANKPLACESTATEPOPFOREIGN-BORN POPULATIONVS 2010

01Hillsborough County, NHNH433,41544,102+36%

02Rockingham County, NHNH324,07716,710+21%

03Merrimack County, NHNH158,0786,789+31%

04Strafford County, NHNH135,0435,809+15%

05Grafton County, NHNH93,2255,157+3%

06Cheshire County, NHNH78,2692,233−2%

07Belknap County, NHNH65,1471,807−8%

08Carroll County, NHNH52,7841,217+4%

09Sullivan County, NHNH43,961933−23%

10Coos County, NHNH31,343875−19%

SHOWING 1–10 OF 10

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES