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Advertise here →Carterville, IL · Market Data
Carterville, Illinois real estate market data.
Real estate market data for Carterville, IL (Williamson County) — Census median home value $183,500, county listing prices down about 8.0% over the past year.
Carterville, IL is in Williamson County, Illinois — covering the whole local market here: resale homes, condos, land, and new construction. The most recent Census estimate puts the population at 5,822, with a median household income of $65,238. Census data puts Carterville's median home value at $183,500 (all owner-occupied homes); Williamson County's current median listing price runs $200,000, down about 8.0% over the past year.
At a glance
Carterville market snapshot
Population
5,822
Median Household Income
$65,238
Median Home Value (city)
$183,500
Median Listing Price (Williamson County)
$200,000
Median Gross Rent
$856/mo
Price Trend (YoY)
-8.0%
Market data compiled from public sources; deemed reliable but not guaranteed; verify independently. Full source list ↗
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What makes Carterville different
Home Value, By Source
The Census Bureau's American Community Survey (2023 5-year estimate) puts Carterville's median home value — across all owner-occupied homes, not just recent sales — at $183,500. Separately, Williamson County's current median listing price (via Realtor.com data, 2026-06-01) runs $200,000. These cover different geography (city vs. county) and different measures (assessed value vs. active listings), which is why we show both rather than picking one — full source list on our data sources page.
County Price Trend
Williamson County's FHFA house price index shows a 5.04% annual change in 2025.
Population & Income
Carterville has an estimated population of 5,822 and a median household income of $65,238, per the Census Bureau's American Community Survey (2023 5-year estimate).
Affordability Snapshot
Carterville's Census-reported median home value works out to about 2.8x the area's median household income, and median gross rent runs roughly 16% of that same income on an annualized basis. Housing economists commonly flag a price-to-income ratio above 4x as historically elevated -- useful context, not a personal affordability verdict.
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Common questions
Carterville FAQ
What are home values like in Carterville, IL?
The Census Bureau's American Community Survey puts Carterville's median home value at $183,500. Williamson County's current median listing price runs $200,000, down about 8.0% over the past year.
What is the population of Carterville, IL?
The U.S. Census Bureau's American Community Survey (2023 5-year estimate) puts Carterville's population at approximately 5,822.
What's the median rent in Carterville, IL?
The Census ACS estimates median gross rent in Carterville at approximately $856 per month.
What is the median household income in Carterville, IL?
Census ACS data puts the median household income in Carterville at approximately $65,238.
Is the Carterville housing market growing?
Williamson County's FHFA house price index shows a 5.04% annual change in 2025.
Is Carterville, IL affordable relative to income?
Census ACS data puts Carterville's median home value at about 2.8 times the median household income, with median gross rent equal to roughly 16% of that income annually. This is a general benchmark, not a personal pre-qualification -- your own income, debt, and down payment determine what you can actually afford.
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