{"found": true, "county": {"County_Seat": "Janesville", "Year_Founded": "1836 ", "Land_Area": "718", "Population_Level": "163,687", "Population_Density": "228", "County_Government_Type": " County", "Governing_Authority": "Dillon's Rule", "Governing_Body": "Board of Supervisors", "Board_Size": 29, "Full_Address": "51 S Main St<br>County Courthouse<br>Janesville, WI 53545-3951", "County_Website": "http://www.co.rock.wi.us", "County_Pop_25_64_Age": "51.72%", "County_Pop_Over_65_Age": "16.56%", "County_Labor_Force": "84,935", "County_Unemployment_Rate": "7.10%", "County_GDP": "$6.92 B", "Population_Change": "2.09%", "Housing_Units": "70,068", "Pct_Housing_Units": "94.10%"}, "pop": {"1920": 66150, "1930": 74206, "1940": 80173, "1950": 92778, "1960": 113913, "1970": 131970, "1980": 139420, "1990": 139510, "2000": 152315, "2020": 163687, "2010": 160331}}