RANKING · 2020 CENSUS · 10 SHOWN OF 10

Most foreign-born residents, New Hampshire counties · 2020

New Hampshire counties ranked by the share of residents born outside the US (2023 ACS). This list covers the 10 counties in New Hampshire that qualify, ranked against each other statewide.

New HampshireAll states All rankings

SAME RANKING BYCities States Metros ZIP codes

YEAR2010 2020 2024

RANKPLACESTATEPOPFOREIGN-BORNVS 2000

01Hillsborough County, NHNH433,4159.9%–

02Grafton County, NHNH93,2255.9%–

03Merrimack County, NHNH158,0785.4%–

04Rockingham County, NHNH324,0774.8%–

05Strafford County, NHNH135,0434.6%–

06Cheshire County, NHNH78,2693.1%–

07Sullivan County, NHNH43,9612.7%–

08Belknap County, NHNH65,1472.6%–

09Coos County, NHNH31,3432.6%–

10Carroll County, NHNH52,7842.5%–

SHOWING 1–10 OF 10

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES