| Place Name | Island Grove Township |
| Place Type | Township |
| ZIP Code(s) | 62670 62677 |
| County | Sangamon County |
| Area Code(s) | 217 |
| Timezone | Central Standard Time (CST) |
| Population (2021) | 555 |
| Majority Ethnicity | White 93.93% |
| Metro/Micro Stats Area | Springfield, IL |
| US Congressional District(s) | Illinois 18th |
| State House Districts | 99 |
| State Senate Districts | 50 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 93.93% |
| African American | 5.18% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0.89% |