Mercer County, Illinois

IL · FIPS 17131 · ACS 2024 5-Year Estimates

Key Statistics

Total Population
15,495
Rank #2,126 of 3,222
34th %ile
Median Household Income
$74,182 −1.3% vs nat'l
Rank #898 of 3,222
72th %ile
Poverty Rate
8.9% −29.2% vs nat'l
Rank #560 of 3,222
83th %ile
Median Home Value
$146,700 −48.0% vs nat'l
Rank #2,303 of 3,222
28th %ile
Bachelor's Degree or Higher
20.9% −38.0% vs nat'l
Rank #1,845 of 3,222
43th %ile
Unemployment Rate
3.1% −40.6% vs nat'l
Rank #769 of 3,222
76th %ile

At a Glance

83.8% Homeownership
95.4% Insured
20.9% Bachelor's+

Age & Sex Distribution

MaleFemale
0-910-1920-2930-3940-4950-5960-6970-7980+10%8%6%4%2%0%2%4%6%8%10%

Race & Ethnicity

White (non-Hispanic)Hispanic or LatinoTwo or More RacesBlack (non-Hispanic)Asian (non-Hispanic)American Indian (non-Hispanic)Other (non-Hispanic)0.0%12.9%25.8%38.7%51.6%64.5%77.4%90.4%93.1%3.4%2.4%0.6%0.4%0.1%0.0%

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.

About this data

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates (2024). All values are estimates derived from survey samples and are subject to margin of error. For more information, see our methodology.