Index change and building permits for the year, with every county.
In 2021 the FHFA house price index for Maine changed +14.7%, against +11.6% for the United States and +4.8% in 2020.
6,530 housing units were authorised by building permits in the state that year (5,238 single-family), +23.1% on 2020; the national total was 1,736,982.
+14.7%Maine index, 2020–2021US +11.6%
6,530housing units permitted in 20215,238 single-family
16 of 16counties with a rising indexmedian county +14.4%
Ranked by the county index change from 2020 to 2021 (FHFA annual county index). Permits are units authorised in 2021; per 1,000 uses the vintage 2025 population.
Housing units authorised in Maine 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.