| Place Name | Big Grove Township (Johnson County) |
| Place Type | Township |
| ZIP Code(s) | 52227 52317 52333 |
| County | Johnson County |
| Area Code(s) | 319 |
| Timezone | Central Daylight Time (CDT) |
| Population (2021) | 4,901 |
| Majority Ethnicity | White 96.34% |
| Metro/Micro Stats Area | Iowa City, IA |
| US Congressional District(s) | Iowa 2nd |
| State House Districts | 73 |
| State Senate Districts | 37 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 96.34% |
| African American | 0.28% |
| Hispanic | 0% |
| Asian | 0.22% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 3.15% |