- 1 bd
- 1 ba
- 650 sqft

The average Marengo, IL home value is $367,952, up 6.7% 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: $367,952
1-Year Value Change: +6.7%
(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 Marengo, IL is $367,952 as of September 2026. This represents a 0.7% increase compared to last month and a 6.7% increase year-over-year.
Home values in Marengo, IL have increased by 0.7% month-over-month and 6.7% year-over-year.
The median home value in Marengo, IL ($367,952) compares to: McHenry County ($367,683), Illinois ($295,943), and the U.S. national median ($366,157).