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Metro East Sun

Tuesday, August 5, 2025

Census Bureau reports Collinsville population was 24,489 in 2020

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Collinsville had a population of 24,489 people in 2020, according to U.S. Census Bureau data obtained by the Metro East Sun.

The median age was 38, with 53.5 percent of the total population being female and 46.5 percent male.

The state's total population in 2020 was 12,716,164.

An agency of the U.S. Federal Statistical System, the Census Bureau is responsible for compiling statistical facts about the American people, places and economy. Data for this story was compiled from the bureau’s American Community Survey. Information from the survey helps to determine how federal and state funds are distributed.

Collinsville population by sex

Estimated NumberPercent of total population
Male11,37746.5
Female13,11253.5
Total Population24,489100

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