Washington Township is one of nine townships in Starke County, in the U.S. state of Indiana. As of the 2020 census, its population was 2,944 (down from 3,003 at 2010) and it contained 1,214 housing units.
According to the 2010 census, the township has a total area of , of which (or 99.83%) is land and (or 0.17%) is water.
(This list is based on USGS data and may include former settlements.)
The township contains these two cemeteries: Holy Cross and Swartzell.