| Place Name | Washington Township (Brown County) |
| Place Type | Township |
| ZIP Code(s) | 66424 66532 |
| County | Brown County |
| Area Code(s) | 785 |
| Timezone | Central Daylight Time (CDT) |
| Population (2021) | 453 |
| Majority Ethnicity | White 96.55% |
| US Congressional District(s) | Kansas 2nd |
| State House Districts | 62 |
| State Senate Districts | 1 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 96.55% |
| African American | 1.38% |
| Hispanic | 2.07% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |