Washington Township is one of thirteen townships in Noble County, Indiana. As of the 2020 census, its population was 1,073 (down from 1,200 at 2010) and it contained 564 housing units.
According to the 2010 census, the township has a total area of , of which (or 97.30%) is land and (or 2.70%) is water.
(This list is based on USGS data and may include former settlements.)