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The total population of St. Clair County is estimated to be 9,330 with 4,737 males (50.77%) and 4,593 females (49.23%). There are 144 less females than males in St. Clair County.
The median household income in St. Clair County was $43,745 in 2021, which marked an a decrease of 447(1.01%) from $44,192 in 2020. This income is 58.63% of the U.S. median household income of $74,606 (all incomes in 2022 inflation-adjusted dollars).
Per the latest American Community Survey by the Census Bureau, St. Clair County sees its highest median household income among householders in the age group of 25 to 44 years old, at $57,453. Overall, the median household income for the county of St. Clair County stands at $43,745.
In St. Clair County, the median income for all workers aged 15 years and older, regardless of work hours, was $32,648 for males and $19,026 for females. However, when specifically considering full-time, year-round workers within the same age group, the median income was $42,570 for males and $37,953 for females.
In St. Clair County, there are just two different racial groups among households. Among these, American Indian and Alaska Native households report a median household income of $44,588, while White households have a median household income of $44,153.
In 2022, the population of St. Clair County was 9,576, a 1.83% increase year-by-year from 2021. Previously, in 2021, St. Clair County's population was 9,404, an increase of 0.57% compared to a population of 9,351 in 2020.
The median age in St. Clair County, MO is 48.7, as per 2021 ACS 5-Year Estimates. Of the total population, 16.69% were under the age of 15, 14.38% aged 15 to 29, 42.37% aged 30 to 64, 23.38% aged 65 to 84, and 3.18% were 85 years of age and older.
Racial distribution of St. Clair County population: 93.87% are White, 0.62% are Black or African American, 0.31% are American Indian and Alaska Native, 0.27% are Asian, 1.14% are some other race and 3.79% are multiracial.