| Official Name: | Hayes Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Crawford |
| Area Total Km2: | 90.83 |
| Area Land Km2: | 90.83 |
| Area Water Km2: | 0 |
| Unit Pref: | Imperial |
| Area Total Sq Mi: | 35.07 |
| Area Land Sq Mi: | 35.07 |
| Area Water Sq Mi: | 0 |
| Area Water Percent: | 0 |
| Population As Of: | 2000 |
| Population Total: | 274 |
| Population Density Km2: | 3 |
| Population Density Sq Mi: | 7.8 |
| Elevation M: | 439 |
| Elevation Ft: | 1440 |
| Coordinates: | 41.99°N -95.1414°W |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0468021 |
Hayes Township is a township in Crawford County, Iowa, United States. As of the 2000 census, its population was 274.
The township was named after Thomas Hayes Sr., a pioneer settler.[1]
Hayes Township covers an area of 35.07sqmi and contains no incorporated settlements. According to the USGS, it contains one cemeteries, Hayes Township Cemetery.
The stream of Malony Branch runs through this township.
Hayes Township contains one airport or landing strip, Lenz Landing Strip.