Washington Township is one of thirteen townships in Fremont County, Iowa, United States.

As of the 2010 census, its population was 350 and it contained 155 housing units.

[1] As of the 2010 census, Washington Township covered an area of 51.24 square miles (132.7 km2); of this, 50.62 square miles (131.1 km2) (98.79 percent) was land and 0.62 square miles (1.6 km2) (1.21 percent) was water.

[1] The township contains Austin Cemetery,[3] Baker Cemetery,[4] Brown Cemetery,[5] Buckham Cemetery,[6] Frost Cemetery,[7] Hamburg Cemetery,[8] Lovelady Cemetery,[9] Means Cemetery,[10] Saint Marys Cemetery[11] and Slusher Cemetery.

[12]