- Population
The population count of Columbus Metro Area (OH) was 2,054,062 in 2018. The population count of Portland Metro Area (OR-WA) was 2,417,931 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 -