- 3 bd
- 3 ba
- 3,276 sqft

The average Johnston City, IL home value is $110,268, down 0.4% 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: $110,268
1-Year Value Change: -0.4%
(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 Johnston City, IL is $110,268 as of September 2026. This represents a 0.6% decrease compared to last month and a 0.4% decrease year-over-year.
Home values in Johnston City, IL have decreased by 0.6% month-over-month and 0.4% year-over-year.
The median home value in Johnston City, IL ($110,268) compares to: Williamson County ($157,730), Illinois ($295,943), and the U.S. national median ($366,157).