Jennings Township is one of five townships in Scott County, Indiana. In the 2020 US Census it had 6,437 people.
According to the 2010 census, the township has a total area of , of which (or 99.81%) is land and (or 0.19%) is water.
As of the 2010 census, its population was 6,633 and it contained 2,860 housing units.