Cincinnati Ohio Msa Population 2024. While the city of cincinnati’s population increased 4.2% from 2010 to 2020, its total population is still down significantly from its peak in the 1950s. 552 census tracts (number) 4,089 population [2020] (average) 21.33 km² area.
552 census tracts (number) 4,089 population [2020] (average) 21.33 km² area. United nations population projections are also included through the year 2035.