Alden Township, McHenry County, Illinois

Alden Township is located in McHenry County, Illinois. As of the 2020 census, its population was 1,275 and it contained 620 housing units.

Geography
According to the 2010 census, the township has a total area of 33.46 sqmi, of which 33.41 sqmi (or 99.85%) is land and 0.05 sqmi (or 0.15%) is water.