| Place Name | Marion Township (Franklin County) |
| Place Type | Township |
| ZIP Code(s) | 50441 50452 50475 |
| County | Franklin County |
| Area Code(s) | 641 |
| Timezone | Central Daylight Time (CDT) |
| Population (2021) | 1,176 |
| Majority Ethnicity | White 78.77% |
| US Congressional District(s) | Iowa 4th |
| State House Districts | 54 |
| State Senate Districts | 27 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 78.77% |
| African American | 1.94% |
| Hispanic | 0.16% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 19.12% |