Index change and building permits for the year, with every county.
In 2025 the FHFA house price index for South Dakota changed +3.1%, against +2.8% for the United States and +3.6% in 2024.
5,305 housing units were authorised by building permits in the state that year (3,296 single-family), −11.8% on 2024; the national total was 1,431,616.
+3.1%South Dakota index, 2024–2025US +2.8%
5,305housing units permitted in 20253,296 single-family
28 of 35counties with a rising indexmedian county +3.5%
Ranked by the county index change from 2024 to 2025 (FHFA annual county index). Permits are units authorised in 2025; per 1,000 uses the vintage 2025 population.
Housing units authorised in South Dakota 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.