Jackson Township is one of four townships in Blackford County, Indiana. As of the 2020 census, its population was 1,233 (down from 1,354 at 2010) and it contained 554 housing units. The township was named after Andrew Jackson, the Brevet Major General of the Battle of New Orleans and the seventh President of the United States.
According to the 2010 census, the township has a total area of , of which (or 99.76%) is land and (or 0.24%) is water. Lake Placid is in this township. Lick Creek runs through the township.
The township contains at least seven cemeteries: Buckles, Goghnauer, Mount Tabor, Reeves, South Trenton, Wayman and West Trenton.