Jackson Township is one of fourteen townships in Cass County, Indiana. As of the 2020 census, its population was 2,773 (down from 2,876 at 2010) and contained 1,246 housing units.
Jackson Township was organized on June 6, 1847, in a meeting at the home of William Frush. It was named for Andrew Jackson, seventh President of the United States.
Jackson Township covers an area of ; (0.07 percent) of this is water.
The township contains four cemeteries: McWilliams, Meeks, Patterson and Sprinkle.