Washington Township is one of twelve townships in Chickasaw County, Iowa, USA.

Washington Township covers an area of 53.69 square miles (139.1 km2) and contains two incorporated settlements: Alta Vista and North Washington.

According to the USGS, it contains four cemeteries: Calvary, Eggleston Farm, Saint Marys and Union.

Washington Township contains one airport or landing strip, New Hampton Municipal Airport.

This article about the geography of Chickasaw County, Iowa is a stub.