Marengo Township, McHenry County, Illinois

Marengo Township is located in McHenry County, Illinois. As of the 2020 census, its population was 7,202 and it contained 3,065 housing units. Marengo is a city located in the township.

Geography
According to the 2010 census, the township has a total area of 35.91 sqmi, of which 35.89 sqmi (or 99.94%) is land and 0.02 sqmi (or 0.06%) is water.