RANKING · 1990 CENSUS · 10 SHOWN OF 10

Oldest housing stock, New Hampshire counties · 1990

New Hampshire counties ranked by oldest median year of construction (1990 ACS). This list covers the 10 counties in New Hampshire that qualify, ranked against each other statewide. The median across all 10 is 1969.

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SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2010 2020 2024

RANKPLACESTATEPOPMEDIAN YEAR BUILTVS –

01Coos County, NHNH31,3431951–

02Cheshire County, NHNH78,2691961–

03Sullivan County, NHNH43,9611962–

04Strafford County, NHNH135,0431966–

05Hillsborough County, NHNH433,4151968–

06Grafton County, NHNH93,2251969–

07Merrimack County, NHNH158,0781969–

08Belknap County, NHNH65,1471971–

09Carroll County, NHNH52,7841972–

10Rockingham County, NHNH324,0771972–

SHOWING 1–10 OF 10

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS