Jefferson Township is one of nine townships in Pike County, Indiana, United States. As of the 2020 census, its population was 1,797 and it contained 813 housing units.
According to the 2010 census, the township has a total area of , of which (or 98.83%) is land and (or 1.19%) is water. The White River defines the township's north border, as well as the north border of Pike County.
(This list is based on USGS data and may include former settlements.)
The township contains these eight cemeteries: Arnold, Bluff, Case, Chapel, Independent Order of Odd Fellows, Logan, McClure and Willis.