RANKING · 2010 CENSUS · 10 SHOWN OF 10

Largest households, New Hampshire counties · 2010

New Hampshire counties ranked by average household size (2010 ACS). 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 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 –

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

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS