| Place Name | Greenfield Township |
| Place Type | Township |
| ZIP Code(s) | 67346 |
| County | Elk County |
| Area Code(s) | 620 |
| Timezone | Central Daylight Time (CDT) |
| Population (2021) | 273 |
| Majority Ethnicity | White 95.73% |
| US Congressional District(s) | Kansas 4th |
| State House Districts | 13 |
| State Senate Districts | 14 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 95.73% |
| African American | 0% |
| Hispanic | 2.99% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1.28% |