Wacousta Township is one of twelve townships in Humboldt County, Iowa, United States.

[1] As of the 2000 census, its population was 246.

Wacousta Township was organized in 1858.

[2] According to the United States Census Bureau, Wacousta Township covers an area of 36.6 square miles (95 km2); all of this land.

Wacousta Township contains McKnight Cemetery and Union Cemetery, in addition to the Omer-Thorsen Farm.