- 3 bd
- 1 ba
- 1,240 sqft

The average Monroe County, IL home value is $322,053, up 2.3% over the past year, and homes go to pending in around 11 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: $322,053
1-Year Value Change: +2.3%
(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 Monroe County, IL is $322,053 as of September 2026. This represents a 0.0% increase compared to last month and a 2.3% increase year-over-year.
The median home value in Monroe County, IL ($322,053) compares to Illinois ($295,943) and the U.S. national median ($366,157).
The cities with the highest median home values in Monroe County, IL include: Columbia ($342,613), Waterloo ($322,794), Valmeyer ($256,916), Red Bud ($255,373). These cities represent the most expensive areas within the county.