The median age was 39, with 51.7 percent of the total population being female and 48.3 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.
St. Clair County population by sex
| Estimated Number | Percent of total population | |
|---|---|---|
| Male | 126,133 | 48.3 |
| Female | 135,053 | 51.7 |
| Total Population | 261,186 | 100 |
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