| Place Name | Viola Township |
| Place Type | Township |
| ZIP Code(s) | 60553 61006 61318 61378 |
| County | Lee County |
| Area Code(s) | 815,779 |
| Timezone | Central Daylight Time (CDT) |
| Population (2021) | 457 |
| Majority Ethnicity | White 88.63% |
| Metro/Micro Stats Area | Dixon, IL |
| US Congressional District(s) | Illinois 16th |
| State House Districts | 90 |
| State Senate Districts | 45 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 88.63% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 11.37% |