[4] As of the 2020 census, its population was 1,233 (down from 1,354 at 2010[5]) and it contained 554 housing units.

[2] 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.

[6] According to the 2010 census, the township has a total area of 45.67 square miles (118.3 km2), of which 45.56 square miles (118.0 km2) (or 99.76%) is land and 0.11 square miles (0.28 km2) (or 0.24%) is water.

Lick Creek runs through the township.

The township contains at least seven cemeteries: Buckles, Goghnauer, Mount Tabor, Reeves, South Trenton, Wayman and West Trenton.