Algonquin, Illinois Map and Directory
The Census Bureau estimates that Algonquin had about 30,897 residents in 2019, which is approximately 2,522 people per square mile of land area.
According to recent American Community Survey data, the median household income in Algonquin was about $102,856 per year.
The Illinois counties map at upper right shows McHenry County, highlighted in red. Use the menu below to display interactive maps of Algonquin, either in a frame on this page or in full-screen mode.
Use the menu below to display categorized Algonquin directories.
Nearby Illinois Cities and Towns *
* Parenthesized numbers indicate economic activity levels.
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