- 4 bd
- 3 ba
- 1,610 sqft

The average Mason City, IL home value is $127,920, up 18.1% 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: $127,920
1-Year Value Change: +18.1%
(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 Mason City, IL is $127,920 as of September 2026. This represents a 3.4% increase compared to last month and a 18.1% increase year-over-year.
Home values in Mason City, IL have increased by 3.4% month-over-month and 18.1% year-over-year.
The median home value in Mason City, IL ($127,920) compares to: Mason County ($105,470), Illinois ($295,943), and the U.S. national median ($366,157).