| Official Name: | Washington Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Adams |
| Government Type: | Indiana township |
| Area Total Sq Mi: | 37.52 |
| Area Land Sq Mi: | 37.49 |
| Area Water Sq Mi: | 0.04 |
| Area Water Percent: | 0.11 |
| Population As Of: | 2020 |
| Population Footnotes: | [1] |
| Population Total: | 8654 |
| Population Density Sq Mi: | 270.8 |
| Elevation M: | 247 |
| Elevation Ft: | 810 |
| Coordinates: | 40.7906°N -84.9353°W |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Postal Code Type: | ZIP codes |
| Postal Code: | 46733, 46772 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 453980 |
Washington Township is one of twelve townships in Adams County, Indiana.[2] As of the 2020 census, its population was 8,654, down from 10,151 at the 2010 census.[3]
According to the 2010 census, the township has a total area of, of which (or 99.92%) is land and (or 0.11%) is water.[4]
The township contains the following cemeteries: Antioch (also known as Beery or River Brethren), County Home (or Farm or Infirmary- no longer exists), Greenwood (also known as Decatur or Maplewood), First City (no longer exists), Little Family, and Roe (no longer exists).