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The median home value in Wonder Lake, IL is $295,009 as of 2026-07-31, up 3.88% from a year earlier.
Median Home Value
$295,009
Year-over-Year
+3.88%
Population
5,248
Wonder Lake ranks #160 of 279 Illinois cities tracked here by median home value, and sits 7.5% below the state's city median of $319,026. It sits in McHenry County, where the county-wide median is $372,372.
Median household income in Wonder Lake is $94,655, so the typical home value is about 3.1× annual household income. This is a simple price-to-income benchmark rather than a monthly payment estimate; it does not account for mortgage rates, down payments, taxes or insurance.
Household income comes from the U.S. Census Bureau's ACS 5-Year Estimates, table B19013 (how the affordability measure works).
Wonder Lake police recorded a violent crime rate of 19 per 100,000 residents in 2024 — lower than most cities that report to the FBI. Property crime runs at 495 per 100,000.
Reported by the city's own police department to the FBI's Uniform Crime Reporting Program (what this covers).
People often call this an average home price, but the figure shown here is Zillow's typical home value (ZHVI), not a simple arithmetic average. In Wonder Lake, that value is $295,009. That's up 3.88% from a year earlier. It is about 7.5% below the typical Illinois city tracked here.
Homes in Wonder Lake are cheaper than McHenry County as a whole, where the median is $372,372 — a difference of about 20.8%.
Median household income here is $94,655, so the typical home value is about 3.1× annual household income. This ratio is a broad comparison measure, not a mortgage-payment estimate.
Wonder Lake police reported 19 violent crimes per 100,000 residents, covering a population of about 5,248. Crime rates are one input among many — they vary block to block within a city, and this figure is a citywide average.
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