In Mercer, Illinois, the median home price is $173,522; median household income is $74,182; the population is 15,495; schools rate 3.4 out of 10; the violent crime rate is 95.7 per 100k; and the average commute is 28.1 minutes.
Data updated April 2026 - Source: Zillow Research
Mercer at a glance
Population
15,495
Median Household Income
$74,182
Typical Home Value
$173,522
School District Rating
3.4
Violent Crime Rate
95.7
Avg Commute Time
28.1
About Mercer
Mercer has a population of 15,495. The median home value is $173,522, 42% below the Illinois median. Median household income is $74,182 (11% below the Illinois median). The most populated towns are Mercer, Richland Grove, and Preemption.
Data comes from public sources including the U.S. Census Bureau, the National Center for Education Statistics, the FBI, the EPA, Zillow, and Redfin. Source attribution is shown on each metric.
Towns in Mercer
15 towns, by population.
Mercer at a glance: frequently asked questions
- What is the population of Mercer?
- Mercer has a population of 15,495 based on the most recent US Census estimate.
- What is the median home price in Mercer?
- The median home value in Mercer is $173,522. Open the interactive map to see the distribution town by town.
- What is the median household income in Mercer?
- Median household income in Mercer is $74,182 per year, sourced from the US Census American Community Survey.
- What state is Mercer in?
- Mercer is in Illinois.
- How many towns are in Mercer?
- Mercer contains 15 towns and municipalities. Click any town below or on the map to see its housing, school, and crime data.
Compare Mercer with other places
Put up to four states, counties, towns, or ZIPs side by side on income, housing, crime, education, and more.
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