| Unit Pref: | Imperial |
| Settlement Type: | Township |
| Official Name: | Black Hawk Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Iowa |
| Subdivision Type2: | County |
| Subdivision Name2: | Jefferson County |
| Leader Title: | County Board of Supervisors |
| Established Title: | Established |
| Established Date: | Unknown |
| Area Total Sq Mi: | 36.7 |
| Area Land Sq Mi: | 36.7 |
| Area Water Sq Mi: | 0 |
| Population Total: | 327 |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
Black Hawk Township is located in Jefferson County, Iowa. The population as of the 2020 Census is 327.[1] The land area is 36.7sqmi with no water area.[2]