Washington Township is one of thirteen townships in Tippecanoe County, Indiana, United States.

As of the 2010 census, its population was 2,432 and it contained 1,002 housing units.

[3] According to the 2010 census, the township has a total area of 27.03 square miles (70.0 km2), of which 26.66 square miles (69.0 km2) (or 98.63%) is land and 0.38 square miles (0.98 km2) (or 1.41%) is water.

[3] (This list is based on USGS data and may include former settlements.)

The township contains these four cemeteries: Americus, Cunningham, Hollywood and North Union.