- 3 bd
- 2 ba
- 1,366 sqft

The average Saint Clair County, IL home value is $177,682, up 1.2% over the past year, and homes go to pending in around 13 days. (Updated on )
Zillow Home Value Index (ZHVI), built from the ground up by measuring monthly changes in property level Zestimates, captures both the level and home values across a wide variety of geographies and housing types.
Typical Home Values: $177,682
1-Year Value Change: +1.2%
(Data through September 30, 2026)
Zillow is more than a place to browse homes. It’s a place to connect with a local agent, explore financing solutions, schedule home tours, understand your buying and selling power, and more.
The median home value in Saint Clair County, IL is $177,682 as of September 2026. This represents a 0.1% increase compared to last month and a 1.2% increase year-over-year.
The median home value in Saint Clair County, IL ($177,682) compares to Illinois ($295,943) and the U.S. national median ($366,157).
The cities with the highest median home values in Saint Clair County, IL include: Shiloh ($316,069), O Fallon ($314,564), Smithton ($309,349), Millstadt ($297,400), Freeburg ($266,997). These cities represent the most expensive areas within the county.