Bennington Township is located in Marshall County, Illinois, United States.

As of the 2010 census, its population was 1,669 and it contained 750 housing units.

The exact date is unknown, but it was prior to 1860.

According to the 2010 census, the township has a total area of 36.01 square miles (93.3 km2), all land.

This Marshall County, Illinois location article is a stub.