Index change and building permits for the year, with every county.
In 2018 the FHFA house price index for New Hampshire changed +6.0%, against +5.7% for the United States and +5.6% in 2017.
4,445 housing units were authorised by building permits in the state that year (2,710 single-family), +22.6% on 2017; the national total was 1,328,827.
+6.0%New Hampshire index, 2017–2018US +5.7%
4,445housing units permitted in 20182,710 single-family
10 of 10counties with a rising indexmedian county +5.9%
Ranked by the county index change from 2017 to 2018 (FHFA annual county index). Permits are units authorised in 2018; per 1,000 uses the vintage 2025 population.
Housing units authorised in New Hampshire by yearsingle-family2+ unit buildings
Source: Federal Housing Finance Agency annual state and county house price indexes (updated March 31, 2026); Census Bureau Building Permits Survey annual state and county files. Public domain. Methodology.