| Official Name: | Polk 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: | 118 |
| Area Land Km2: | 117.76 |
| Area Water Km2: | 0.24 |
| Area Total Sq Mi: | 45.56 |
| Area Land Sq Mi: | 45.47 |
| Area Water Sq Mi: | 0.09 |
| Area Water Percent: | 0.2 |
| Population As Of: | 2000 |
| Population Total: | 1803 |
| Population Density Km2: | 15.3 |
| Population Density Sq Mi: | 39.7 |
| Elevation M: | 265 |
| Elevation Ft: | 869 |
| Coordinates: | 42.2433°N -91.8903°W |
| Timezone: | CST |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Postal Code Type: | ZIP codes |
| Postal Code: | 52213, 52345, 52349, 52352 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0468554 |
Polk Township is one of twenty townships in Benton County, Iowa, United States. As of the 2000 census, its population was 1,803.[1]
Polk Township was founded in 1848.[2]
According to the United States Census Bureau, Polk Township covers an area of 45.56 square miles (118 square kilometers); of this, 45.47 square miles (117.76 square kilometers, 99.8 percent) is land and 0.09 square miles (0.24 square kilometers, 0.2 percent) is water.
(This list is based on USGS data and may include former settlements.)
(These towns are listed as "historical" by the USGS.)
The township contains these five cemeteries: Cox, Kisling, Saint Marys, Spencers Grove and Urbana.