Mercer County, Illinois
IL · FIPS 17131 · ACS 2024 5-Year Estimates
| Metric | Value | vs National | Rank | Percentile |
|---|---|---|---|---|
| Total Population | 15,495 | — | #2,126 / 3,222 | |
| Median Household Income | $74,182 | -1.3% | #898 / 3,222 | |
| Median Age | 44.7 years | +14.9% | #788 / 3,222 | |
| Median Home Value | $146,700 | -48.0% | #2,303 / 3,222 | |
| Median Gross Rent | $786 | -32.4% | #2,207 / 3,222 | |
| Poverty Rate | 8.9% | -29.2% | #560 / 3,222 | |
Demographics
Mercer County has a population of 15,495, making it the #2,126 most populous county in the US. The median age is 44.7 years, which is 14.9% above the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Household Type
Economy
The median household income in Mercer County is $74,182, ranking #898 out of 3,222 counties — 1.3% below the national median. The poverty rate is 8.9% and unemployment stands at 3.1%.
Median Household Income Trend
Rankings →Poverty Rate Trend
Rankings →Housing
The median home value in Mercer County is $146,700 (-48.0% vs national). Renters pay a median of $786/mo and the homeownership rate is 83.8%.
Median Home Value Trend
Rankings →Health
95.4% of residents in Mercer County have health insurance coverage, which is 4.0% above the national rate.
About Mercer County, Illinois
Mercer County, Illinois has a total population of 15,495, making it the 2,126th most populous county in the United States. The median age in Mercer County is 44.7 years, which is 14.9% above the national median of 38.9 years.
The median household income in Mercer County is $74,182, which ranks #898 of 3,222 counties nationwide. This is 1.3% below the national median of $75,149. The poverty rate is 8.9%, lower than the national rate of 12.6%. The unemployment rate stands at 3.1%.
The median home value in Mercer County is $146,700, 48.0% below the national median. Renters in Mercer County pay a median gross rent of $786 per month. The homeownership rate is 83.8%, compared to the national rate of 64.4%.
In Mercer County, 20.9% of residents aged 25 and older hold a bachelor's degree or higher, 38.0% below the national average of 33.7%. Health insurance coverage stands at 95.4% of the population. The average commute time for workers is 29.9 min.
Mercer County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 93.1% of the population, followed by Hispanic or Latino (3.4%) and Two or More Races (2.4%).
All data for Mercer County, Illinois comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.