| Official Name: | Deerfield Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Chickasaw |
| Area Total Km2: | 138.92 |
| Area Land Km2: | 138.92 |
| Area Water Km2: | 0 |
| Unit Pref: | Imperial |
| Area Total Sq Mi: | 53.64 |
| Area Land Sq Mi: | 53.64 |
| Area Water Sq Mi: | 0 |
| Area Water Percent: | 0 |
| Population As Of: | 2000 |
| Population Total: | 417 |
| Population Density Km2: | 3 |
| Population Density Sq Mi: | 7.8 |
| Elevation M: | 342 |
| Elevation Ft: | 1122 |
| Coordinates: | 43.1553°N -92.4981°W |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0467696 |
Deerfield Township is one of twelve townships in Chickasaw County, Iowa, USA. As of the 2000 census, its population was 417.
Deerfield Township was organized in 1856.[1]
Deerfield Township covers an area of 53.64sqmi and contains no incorporated settlements. According to the USGS, it contains one cemetery, Deerfield.
The stream of Elk Creek runs through this township.