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

[1] Deerfield Township covers an area of 53.64 square miles (138.9 km2) and contains no incorporated settlements.

According to the USGS, it contains one cemetery, Deerfield.

The stream of Elk Creek runs through this township.

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