Data changelog
Dataset versions stay visible so you can tell what changed and which period a number covers.
October 2, 2026.
- Added all 410 FHFA metropolitan/division series through 2026 Q2, with current Census county membership and a market selector for places crossing boundaries.
- Updated county comparisons to Census 2026 adjacency, city county parts to ACS 2024, and Connecticut ZIP relationships to the nine current planning regions.
- Improved consent-banner keyboard focus clearance and reduced-motion behavior.
October 1, 2026.
- Imported ACS 2024 five-year housing and population tables for all 50 states and D.C., 3,144 counties and county equivalents, and 32,038 Census places.
- Imported HUD FY 2027 bedroom-specific FMRs and Small Area FMRs, effective October 1, 2026.
- Imported HUD FY 2026 household-size income limits and Freddie Mac’s 2026 county mortgage AMI file.
- Imported FHFA state quarterly indexes through 2026 Q2 and developmental county annual indexes through 2025.
- Added GET-based housing calculators, source citations, comparison tables, state rules, and a read-only JSON API.
Refresh rhythm.
ACS is reviewed at the annual release; HUD rents at the fiscal-year release; income limits and mortgage AMI at their annual publications; FHFA each quarter. Legal rules require a separate official-source review, and reported observation dates remain attached to the imported dataset.