| Official Name: | Clay Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Clay |
| Area Total Km2: | 94.15 |
| Area Land Km2: | 94.15 |
| Area Water Km2: | 0 |
| Unit Pref: | Imperial |
| Area Total Sq Mi: | 36.35 |
| Area Land Sq Mi: | 36.35 |
| Area Water Sq Mi: | 0 |
| Area Water Percent: | 0 |
| Population As Of: | 2000 |
| Population Total: | 696 |
| Population Density Km2: | 7.4 |
| Population Density Sq Mi: | 19.1 |
| Elevation M: | 427 |
| Elevation Ft: | 1401 |
| Coordinates: | 43.0408°N -95.3275°W |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0467602 |
Clay Township is a township in Clay County, Iowa, USA. As of the 2000 census, its population was 696.
Clay Township was the first township in Clay County. When it was created in 1859, it comprised the entire county.[1]
Clay Township covers an area of 36.35sqmi and contains one incorporated settlement, Royal. According to the USGS, it contains three cemeteries: Center, TriMello and Willow Creek.
Clay Township contains one airport or landing strip, Royal Airport.