- Population
The population count of Cincinnati Metro Area (OH-KY-IN) was 2,168,825 in 2018. The population count of Indianapolis Metro Area (IN) was 2,007,497 in 2018. The population count of St. Louis Metro Area (MO-IL) was 2,805,551 in 2018.
Population
Population Change
Above charts are based on data from the U.S. Census American Community Survey | ODN Dataset | API -