| Place Name | Delavan |
| Place Type | City |
| ZIP Code(s) | 61734 |
| County | Tazewell County |
| Area Code(s) | 309 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 1,568 |
| Population Growth Rate (2010-19) | -7.16% |
| Majority Ethnicity | White 92.64% |
| 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 | 92.64% |
| African American | 0.53% |
| Hispanic | 0.21% |
| Asian | 0.21% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 6.4% |