| Place Name | Mill Creek Township (Washington County) |
| Place Type | Township |
| ZIP Code(s) | 66944 66955 66958 66968 |
| County | Washington County |
| Area Code(s) | 785 |
| Timezone | Central Daylight Time (CDT) |
| Population (2021) | 208 |
| Majority Ethnicity | White 95.63% |
| US Congressional District(s) | Kansas 1st |
| State House Districts | 106 |
| State Senate Districts | 36 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 95.63% |
| African American | 4.37% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |