- 2 bd
- 1 ba
- 1,380 sqft

The average Grundy County, IL home value is $322,819, up 3.6% over the past year, and homes go to pending in around 16 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: $322,819
1-Year Value Change: +3.6%
(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 Grundy County, IL is $322,819 as of September 2026. This represents a 0.3% increase compared to last month and a 3.6% increase year-over-year.
The median home value in Grundy County, IL ($322,819) compares to Illinois ($295,943) and the U.S. national median ($366,157).
The cities with the highest median home values in Grundy County, IL include: Verona ($355,998), Morris ($314,234), Diamond ($308,669), Mazon ($275,682), Coal City ($274,407). These cities represent the most expensive areas within the county.