Jackson Township is one of eleven townships in Randolph County, Indiana, United States. As of the 2020 census, its population was 558 (down from 619 at 2010[4]) and it contained 246 housing units.[2]
According to the 2010 census, the township has a total area of 30.41 square miles (78.8 km2), of which 30.36 square miles (78.6 km2) (or 99.84%) is land and 0.06 square miles (0.16 km2) (or 0.20%) is water.[4]