| Place Name | Jefferson Township (Geary County) |
| Place Type | Township |
| ZIP Code(s) | 66441 66442 |
| County | Geary County |
| Area Code(s) | 785 |
| Timezone | Central Standard Time (CST) |
| Population (2021) | 2,196 |
| Majority Ethnicity | White 74.28% |
| Metro/Micro Stats Area | Manhattan, KS |
| US Congressional District(s) | Kansas 1st |
| State House Districts | 65 |
| State Senate Districts | 17 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 74.28% |
| African American | 15.65% |
| Hispanic | 0.49% |
| Asian | 1.91% |
| Native American | 0.54% |
| Hawaiin/Pacific Islander | 7.14% |