Cass Township is one of seventeen townships in Cedar County, Iowa, United States.

The first settler in Cass Township was William Kester, who arrived about 1837.

[3] Cass Township covers an area of 26.98 square miles (69.9 km2) and contains no incorporated settlements.

According to the USGS, it contains four cemeteries: Cass, Evergreen, Mathews and Shawver.

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