| Place Name | Jefferson Township (Jay County) |
| Place Type | Township |
| ZIP Code(s) | 47371 47373 47380 |
| County | Jay County |
| Area Code(s) | 765,260 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2021) | 530 |
| Majority Ethnicity | White 100% |
| US Congressional District(s) | Indiana 3rd |
| State House Districts | 33 |
| State Senate Districts | 19 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 100% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |