| Place Name | Rio Township |
| Place Type | Township |
| ZIP Code(s) | 61413 61467 61472 |
| County | Knox County |
| Area Code(s) | 309 |
| Timezone | Central Standard Time (CST) |
| Population (2021) | 389 |
| Majority Ethnicity | White 91.18% |
| Metro/Micro Stats Area | Galesburg, IL |
| US Congressional District(s) | Illinois 17th |
| State House Districts | 74 |
| State Senate Districts | 37 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 91.18% |
| African American | 1.47% |
| Hispanic | 0% |
| Asian | 1.23% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 6.13% |