Index change and building permits for the year, with every county.
In 2006 the FHFA house price index for Massachusetts changed +1.0%, against +6.6% for the United States and +9.8% in 2005.
19,580 housing units were authorised by building permits in the state that year (10,916 single-family), −20.2% on 2005; the national total was 1,838,903.
+1.0%Massachusetts index, 2005–2006US +6.6%
19,580housing units permitted in 200610,916 single-family
11 of 14counties with a rising indexmedian county +1.8%
Ranked by the county index change from 2005 to 2006 (FHFA annual county index). Permits are units authorised in 2006; per 1,000 uses the vintage 2025 population.
Housing units authorised in Massachusetts 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.