The population count of Black Hawk County, IA was 133,009 in 2018. The population count of Walworth County, WI was 103,013 in 2018.
Population
Population Change
Above charts are based on data from the U.S. Census American Community Survey | ODN Dataset | API -
Demographics and Population Datasets Involving Walworth County, WI or Black Hawk County, IA
- API
2010 Census/ACS Detailed Block Group Data
data.kcmo.org | Last Updated 2021-11-12T14:22:17.000Zdetailed characteristics of people and housing for individual 2010 census block groups