| Official Name: | Washington Township |
| Settlement Type: | Township |
| Unit Pref: | imperial |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Iowa |
| Subdivision Type2: | County |
| Subdivision Name2: | Fremont |
| Area Total Km2: | 132.71 |
| Area Land Km2: | 131.11 |
| Area Water Km2: | 1.6 |
| Area Total Sq Mi: | 51.24 |
| Area Land Sq Mi: | 50.62 |
| Area Water Sq Mi: | 0.62 |
| Area Water Percent: | 1.21 |
| Population As Of: | 2010 |
| Population Footnotes: | [1] |
| Population Total: | 350 |
| Population Density Km2: | 2.7 |
| Population Density Sq Mi: | 6.9 |
| Elevation M: | 279 |
| Elevation Ft: | 915 |
| Coordinates: | 40.6414°N -95.6975°W |
| Timezone: | CST |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Postal Code Type: | ZIP codes |
| Postal Code: | 51640, 51648, 51652 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0468916 |
Washington Township is one of thirteen townships in Fremont County, Iowa, United States. As of the 2010 census, its population was 350 and it contained 155 housing units.[1]
As of the 2010 census, Washington Township covered an area of ; of this, (98.79 percent) was land and (1.21 percent) was water.[1]
The township contains Austin Cemetery, Baker Cemetery, Brown Cemetery, Buckham Cemetery, Frost Cemetery, Hamburg Cemetery, Lovelady Cemetery, Means Cemetery, Saint Marys Cemetery and Slusher Cemetery.