{"source":"https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2025_Gazetteer/2025_Gaz_counties_national.zip","populationSource":{"name":"U.S. Census Bureau Vintage 2025 county population estimates","url":"https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/counties/totals/co-est2025-alldata.csv","asOf":"2025-07-01","matched":3144,"sha256":"4f5a499d851e2cb48fd7a5405e5a9235453a8a66933657aacd10df0e264f35d5"},"records":[{"fips":"19129","name":"Mills County","state":"IA","stateName":"Iowa","slug":"mills-county","landSqMi":437.431,"waterSqMi":3.212,"latitude":41.033703,"longitude":-95.619101,"censusProfile":"https://data.census.gov/profile?g=050XX00US19129","population2025":14793}]}