The median home value in Algonquin, IL is $423,901 as of 2026-06-30, up 4.16% from a year earlier.
Median Home Value
$423,901
Year-over-Year
+4.16%
Population
30,289
Algonquin ranks #64 of 279 Illinois cities tracked here by median home value, and sits 33.1% above the state's city median of $318,423. It sits in McHenry County, where the county-wide median is $371,681.
Algonquin police recorded a violent crime rate of 59 per 100,000 residents in 2024 — lower than most cities that report to the FBI. Property crime runs at 1,179 per 100,000.
Reported by the city's own police department to the FBI's Uniform Crime Reporting Program (what this covers).
The median home value in Algonquin is $423,901. That's up 4.16% from a year earlier. That is about 33.1% above the typical county in Illinois.
Homes in Algonquin are more expensive than McHenry County as a whole, where the median is $371,681 — a difference of about 14.0%.
Algonquin police reported 59 violent crimes per 100,000 residents, covering a population of about 30,289. Crime rates are one input among many — they vary block to block within a city, and this figure is a citywide average.