- 3 bd
- 3 ba
- 2,100 sqft

The average Johnson County, IL home value is $189,723, down 2.8% over the past year. (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: $189,723
1-Year Value Change: -2.8%
(Data through August 31, 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 Johnson County, IL is $189,723 as of August 2026. This represents a 0.9% decrease compared to last month and a 2.8% decrease year-over-year.
The median home value in Johnson County, IL ($189,723) compares to Illinois ($297,573) and the U.S. national median ($368,697).
The cities with the highest median home values in Johnson County, IL include: Ozark ($205,089), Goreville ($203,003), Buncombe ($179,042), Vienna ($178,273), Grantsburg ($170,946). These cities represent the most expensive areas within the county.