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The average Jefferson County, WI home value is $369,355, up 5.3% over the past year, and homes go to pending in around 15 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: $369,355
1-Year Value Change: +5.3%
(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 Jefferson County, WI is $369,355 as of September 2026. This represents a 0.3% increase compared to last month and a 5.3% increase year-over-year.
The median home value in Jefferson County, WI ($369,355) compares to Wisconsin ($337,196) and the U.S. national median ($366,157).
The cities with the highest median home values in Jefferson County, WI include: Ixonia ($475,513), Helenville ($453,092), Sullivan ($446,422), Lake Ripley ($442,128), Lake Mills ($430,830). These cities represent the most expensive areas within the county.