| Place Name | Cass Township (Clayton County) |
| Place Type | Township |
| ZIP Code(s) | 50650 52076 |
| County | Clayton County |
| Area Code(s) | 563 |
| Timezone | Central Daylight Time (CDT) |
| Population (2021) | 1,841 |
| Majority Ethnicity | White 99.23% |
| US Congressional District(s) | Iowa 1st |
| State House Districts | 56 |
| State Senate Districts | 28 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 99.23% |
| African American | 0.05% |
| Hispanic | 0% |
| Asian | 0.27% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0.44% |