{"datasets":[{"cadence":"P1Y","check_every":"P7D","coverage":{"end":"2025","start":"1990"},"current":"2026-11-06.345a40fe21","description":"New housing units authorized by building permits in every US county each year since 1990, from the Census Bureau's Building Permits Survey: units by building size (single-family to 5+ units), buildings and construction value, with state and national totals.","discontinued":false,"id":"building-permits","kind":"series","published_at":"2026-11-06T19:22:20Z","sla":"P15M","source":{"commercial_ok":true,"license":"LicenseRef-US-Government-Work","name":"US Census Bureau, Building Permits Survey, annual county files","url":"https://www.census.gov/construction/bps/"},"title":"Building permits by county"},{"cadence":"P1Y","check_every":"P7D","coverage":{"end":"2025","start":"1975"},"current":"2026-11-06.946bd71618","description":"FHFA's annual house price index for every US county and state with enough sales, from 1975: cumulative growth in home values from the prices and appraisals of Fannie Mae and Freddie Mac mortgages, with the yearly change and indexes based to 100 in 1990 and 2000 so places can be compared.","discontinued":false,"id":"house-prices","kind":"series","published_at":"2026-11-06T19:26:09Z","sla":"P15M","source":{"commercial_ok":true,"license":"LicenseRef-US-Government-Work","name":"FHFA House Price Index, annual all-transactions indexes for counties and states","url":"https://www.fhfa.gov/data/hpi/datasets"},"title":"House prices by county and state"}],"site":"housingdata"}