{"datasets":[{"cadence":"P1Y","check_every":"P30D","coverage":{"end":null,"start":null},"current":"2026-10-26.62c3b31bf5","description":"GeoJSON boundaries for US states, counties and 119th Congress congressional districts (Census 2025 cartographic boundary files at 1:20m and 1:5m) and world countries (Natural Earth 1:110m and 1:50m). Every feature's id is the location id the rest of the family uses (us-ca, us-county-06037, usa), so a map joins to any dataset by id. index.json lists every layer with its source, vintage and caveats.","discontinued":false,"id":"boundaries","kind":"files","published_at":"2026-10-26T12:10:18Z","sla":"P400D","source":{"commercial_ok":true,"license":"LicenseRef-US-Government-Work AND LicenseRef-Public-Domain","name":"U.S. Census Bureau 2025 Cartographic Boundary Files (state, county, 119th Congress congressional district; 1:20,000,000 and 1:5,000,000) and Natural Earth Admin 0 Countries v5.1.2 (1:110m, 1:50m)","url":"https://www.census.gov/geographies/mapping-files/time-series/geo/cartographic-boundary.html"},"title":"Map boundaries"}],"site":"visualizedata"}