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The median home value in Island Lake, IL is $307,236, up 5.94% from a year earlier.
City housing-data period: September 2026. City source retrieval/check time (UTC) is recorded in the feed's updated field when available, not in the housing-data period.
Checked daily for new monthly Zillow releases, not new daily prices. Income and crime data are updated separately, not by the daily housing-data check. Unavailable means observation dates are missing or invalid.
Median Home Value
$307,236
Year-over-Year
+5.94%
Population
7,978
The typical home value decreased by 0.2%, from $307,816 in May 2026 to $307,236 in Sep 2026.
Monthly Zillow Home Value Index snapshots retained by HomePriceMap. A short history is shown now and grows automatically as each new monthly release arrives.
| Month | Typical home value | Year-over-year change |
|---|---|---|
| May 2026 | $307,816 | +6.4% |
| Jun 2026 | $309,980 | +6.5% |
| Jul 2026 | $309,427 | +6.3% |
| Aug 2026 | $309,230 | +6.1% |
| Sep 2026 | $307,236 | +5.9% |
Island Lake ranks #148 of 279 Illinois cities tracked here by median home value, and sits 2.7% below the state's city median of $315,610. It sits in McHenry County, where the county-wide median is $367,683.
Island Lake police recorded a violent crime rate of 63 per 100,000 residents in 2024 — lower than most cities that report to the FBI. Property crime runs at 526 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 Island Lake, that value is $307,236. That's up 5.94% from a year earlier. It is about 2.7% below the typical Illinois city tracked here.
Homes in Island Lake are cheaper than McHenry County as a whole, where the median is $367,683 — a difference of about 16.4%.
Island Lake police reported 63 violent crimes per 100,000 residents, covering a population of about 7,978. 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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