Algonquin runs about 10,914 households, with a median household income of $131,753 - well above the $110,450 median across the broader service area. That income level tends to track with homeowners who replace a failing door system rather than patch it repeatedly, and with garages that have had an upgraded opener or insulated door installed at some point since the original build.
Across the wider territory we cover from Crystal Lake, the housing spans 1952 through 2009, with most of it dating to the 1980s and 90s across 58 named areas. Algonquin sits on the newer end of that range.