Jennings Township is one of nine townships in Crawford County, Indiana. As of the 2020 census, its population was 1,458 and it contained 677 housing units.
According to the 2010 census, the township has a total area of , of which (or 99.56%) is land and (or 0.44%) is water. Spring Lake is in this township.
(This list is based on USGS data and may include former settlements.)
The township contains three cemeteries: Everton, Leavenworth Memorial Garden and Old Leavenworth.