RANKING · 2010 CENSUS · 10 SHOWN OF 10

Largest households, New Hampshire counties · 2010

New Hampshire counties ranked by average household size (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

RELATEDMost expensive homes Cheapest homes Highest median rent Lowest median rent Highest homeownership rate Highest renter share

YEAR2010 2020 2024

RANKPLACESTATEPOPAVERAGE HOUSEHOLD SIZEVS 2000

01Hillsborough County, NHNH433,4152.55–

02Rockingham County, NHNH324,0772.55–

03Merrimack County, NHNH158,0782.46–

04Strafford County, NHNH135,0432.46–

05Cheshire County, NHNH78,2692.42–

06Grafton County, NHNH93,2252.40–

07Carroll County, NHNH52,7842.38–

08Sullivan County, NHNH43,9612.37–

09Belknap County, NHNH65,1472.35–

10Coos County, NHNH31,3432.15–

SHOWING 1–10 OF 10

Download CSV (full list, 10 rows)

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