| Place Name | Rochester Township |
| Place Type | Township |
| ZIP Code(s) | 52760 52772 52778 |
| County | Cedar County |
| Area Code(s) | 563 |
| Timezone | Central Daylight Time (CDT) |
| Population (2021) | 720 |
| Majority Ethnicity | White 95.98% |
| US Congressional District(s) | Iowa 2nd |
| State House Districts | 73 |
| State Senate Districts | 37 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 95.98% |
| African American | 0% |
| Hispanic | 0.4% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 3.61% |