| Place Name | Delavan Township |
| Place Type | Township |
| ZIP Code(s) | 61734 |
| County | Tazewell County |
| Area Code(s) | 309,217 |
| Timezone | Central Daylight Time (CDT) |
| Population (2021) | 2,125 |
| Majority Ethnicity | White 93.43% |
| Metro/Micro Stats Area | Peoria, IL |
| US Congressional District(s) | Illinois 18th |
| State House Districts | 87 |
| State Senate Districts | 44 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 93.43% |
| African American | 0.46% |
| Hispanic | 0.18% |
| Asian | 0.46% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 5.47% |