{"data":[{"jurisdictionTag":"county:31149","state":"NE","level":"county","geoid":"31149","fips":"31149","displayName":"Rock County","aliases":["Rock County","Rock"],"geometryKey":"ROCK","source":"ne-counties.geojson","caveat":""}],"meta":{"generatedAt":"2026-09-27T21:58:19.590Z","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>"}}