| Place Name | Avena Township |
| Place Type | Township |
| ZIP Code(s) | 62458 |
| County | Fayette County |
| Area Code(s) | 618 |
| Timezone | Central Standard Time (CST) |
| Population (2021) | 2,184 |
| Majority Ethnicity | White 98.9% |
| US Congressional District(s) | Illinois 15th |
| State House Districts | 107 |
| State Senate Districts | 54 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 98.9% |
| African American | 0.28% |
| Hispanic | 0% |
| Asian | 0.5% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0.32% |