- 3 bd
- 1 ba
- 1,200 sqft

The average Rock Island County, IL home value is $156,822, up 3.9% 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: $156,822
1-Year Value Change: +3.9%
(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 Rock Island County, IL is $156,822 as of September 2026. This represents a 0.1% decrease compared to last month and a 3.9% increase year-over-year.
The median home value in Rock Island County, IL ($156,822) compares to Illinois ($295,943) and the U.S. national median ($366,157).
The cities with the highest median home values in Rock Island County, IL include: Port Byron ($304,514), Coal Valley ($272,163), Illinois City ($272,077), Rapids City ($246,468), Cordova ($228,683). These cities represent the most expensive areas within the county.