Jackson Township is one of fifteen townships in DeKalb County, Indiana.

Jackson Township was founded in 1838.

[5] According to the 2010 census, the township has a total area of 35.59 square miles (92.2 km2), of which 35.4 square miles (92 km2) (or 99.47%) is land and 0.19 square miles (0.49 km2) (or 0.53%) is water.

[4] Dunton Lake is in this township.

The township contains two cemeteries: Bear Creek and Watson.