Index change and building permits for the year, with every county.
In 2004 the FHFA house price index for Montana changed +9.2%, against +9.2% for the United States and +4.6% in 2003.
4,975 housing units were authorised by building permits in the state that year (3,425 single-family), +32.1% on 2003; the national total was 2,070,077.
+9.2%Montana index, 2003–2004US +9.2%
4,975housing units permitted in 20043,425 single-family
36 of 39counties with a rising indexmedian county +7.1%
Ranked by the county index change from 2003 to 2004 (FHFA annual county index). Permits are units authorised in 2004; per 1,000 uses the vintage 2025 population.
Housing units authorised in Montana 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.