Algonquin, Illinois — City Overview

Living in Algonquin, summers are warm, peaking at 82.9°F in Jul, while winters are cold — Feb lows average 16.2°F. At 6126 heating degree days per year, winter energy bills are significant. The area receives 41.7 inches of rainfall per year. Within 5 miles: 116 parks, 9 groceries, 88 dining spots and 12 schools. One hospital serves the immediate area. Median household income: $129,658. With a 4.4% poverty rate and 85.9% homeownership, the community reflects a stable residential mix. Air quality is Good — avg AQI 50 over the past week.

View Algonquin city guide

Updated August 27, 2026.

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