Index change and building permits for the year, with every county.
In 2000 the FHFA house price index for Delaware changed +6.7%, against +8.3% for the United States and +3.6% in 1999.
4,611 housing units were authorised by building permits in the state that year (3,915 single-family), −12.8% on 1999; the national total was 1,592,267.
+6.7%Delaware index, 1999–2000US +8.3%
4,611housing units permitted in 20003,915 single-family
3 of 3counties with a rising indexmedian county +6.2%
Ranked by the county index change from 1999 to 2000 (FHFA annual county index). Permits are units authorised in 2000; per 1,000 uses the vintage 2025 population.
Housing units authorised in Delaware 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.