| Place Name | Washington Township (Miami County) |
| Place Type | Township |
| ZIP Code(s) | 45318 45356 45373 |
| County | Miami County |
| Area Code(s) | 326,937 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2021) | 1,255 |
| Majority Ethnicity | White 98.25% |
| Metro/Micro Stats Area | Dayton-Kettering, OH |
| US Congressional District(s) | Ohio 8th |
| State House Districts | 80 |
| State Senate Districts | 5 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 98.25% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 1.75% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |