The population count of Peoria County, IL was 186,818 in 2016. The population count of Tazewell County, IL was 135,400 in 2016. The population count of Scott County, IA was 171,116 in 2016.

Population

Population Change

Above charts are based on data from the U.S. Census American Community Survey | ODN Dataset | API - Notes:

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Demographics and Population Datasets Involving Peoria County, IL or Tazewell County, IL or Scott County, IA