Jefferson Township is one of fifteen townships in Greene County, Indiana, USA. As of the 2020 census, its population was 1,959, down from 2,094 at 2010.
According to the 2010 census, the township has a total area of , of which (or 99.57%) is land and (or 0.43%) is water. The streams of Bunnell Branch, Corbin Creek, Eel River and Lemon Creek run through this township.
(This list is based on USGS data and may include former settlements.)
The township contains eight cemeteries: Barton, Bullerman, Dixon, Griffith, Hayes, Oak Grove, Stanley and Steward.
Jefferson Township residents may obtain a library card from the Worthington-Jefferson Township Public Library in Worthington.