Index change and building permits for the year, with every county.
In 1999 the FHFA house price index for Iowa changed +3.9%, against +4.3% for the United States and +4.3% in 1998.
13,441 housing units were authorised by building permits in the state that year (9,651 single-family), +2.3% on 1998; the national total was 1,663,533.
+3.9%Iowa index, 1998–1999US +4.3%
13,441housing units permitted in 19999,651 single-family
81 of 89counties with a rising indexmedian county +4.0%
Ranked by the county index change from 1998 to 1999 (FHFA annual county index). Permits are units authorised in 1999; per 1,000 uses the vintage 2025 population.
Housing units authorised in Iowa 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.