| Official Name: | Monroe Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Iowa |
| Subdivision Type2: | County |
| Subdivision Name2: | Benton |
| Area Total Km2: | 94.04 |
| Area Land Km2: | 94.01 |
| Area Water Km2: | 0.03 |
| Area Total Sq Mi: | 36.31 |
| Area Land Sq Mi: | 36.3 |
| Area Water Sq Mi: | 0.01 |
| Area Water Percent: | 0.03 |
| Population As Of: | 2000 |
| Population Total: | 259 |
| Population Density Km2: | 2.8 |
| Population Density Sq Mi: | 7.1 |
| Elevation M: | 284 |
| Elevation Ft: | 932 |
| Coordinates: | 42.1742°N -92.2431°W |
| Timezone: | CST |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Postal Code Type: | ZIP codes |
| Postal Code: | 52224, 52229 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0468391 |
Monroe Township is one of twenty townships in Benton County, Iowa, United States. As of the 2000 census, its population was 259.[1]
Monroe Township was founded in 1851.[2]
According to the United States Census Bureau, Monroe Township covers an area of 36.31 square miles (94.04 square kilometers); of this, 36.3 square miles (94.01 square kilometers, 99.97 percent) is land and 0.01 square miles (0.03 square kilometers, 0.03 percent) is water.
The township contains these four cemeteries: Gnagy, Ramthun, Saint Joseph and Urmy.