{"data":[{"jurisdictionTag":"county:17199","state":"IL","level":"county","geoid":"17199","fips":"17199","displayName":"Williamson County","aliases":["Williamson County","Williamson"],"geometryKey":"WILLIAMSON","source":"il-counties.geojson","caveat":""}],"meta":{"generatedAt":"2026-09-27T21:55:55.381Z","source":"canonical-jurisdictions","releaseId":null,"schemaVersion":"1.0.0","rowCount":1,"hasMore":false,"limit":250,"offset":0,"total":1,"registryCountyEquivalentCount":3144,"contract":"county:<five-digit Census GEOID>"}}