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The total population of Mercer County is estimated to be 15,692 with 7,951 males (50.67%) and 7,741 females (49.33%). There are 210 less females than males in Mercer County.
The median household income in Mercer County was $64,824 in 2021, which marked an an increase of 29(0.04%) from $64,795 in 2020. This income is 86.89% 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, Mercer County sees its highest median household income among householders in the age group of 45 to 64 years old, at $85,017. Overall, the median household income for the county of Mercer County stands at $64,824.
In Mercer County, the median income for all workers aged 15 years and older, regardless of work hours, was $46,701 for males and $28,353 for females. However, when specifically considering full-time, year-round workers within the same age group, the median income was $62,796 for males and $43,416 for females.
In Mercer County, population is primarily represented by White households, reporting a median income of $65,502.
In 2022, the population of Mercer County was 15,504, a 0.41% decrease year-by-year from 2021. Previously, in 2021, Mercer County's population was 15,568, a decline of 0.38% compared to a population of 15,627 in 2020.
The median age in Mercer County, IL is 44.6, as per 2021 ACS 5-Year Estimates. Of the total population, 17.19% were under the age of 15, 16.30% aged 15 to 29, 45.19% aged 30 to 64, 18.48% aged 65 to 84, and 2.84% were 85 years of age and older.
Racial distribution of Mercer County population: 95.58% are White, 0.50% are Black or African American, 0.33% are Asian, 0.79% are some other race and 2.80% are multiracial.