| Place Name | Illinois Township (Pope County) |
| Place Type | Township |
| ZIP Code(s) | 72801 72802 72834 72837 72858 |
| County | Pope County |
| Area Code(s) | 479 |
| Timezone | Central Daylight Time (CDT) |
| Population (2021) | 31,001 |
| Majority Ethnicity | White 79.56% |
| Metro/Micro Stats Area | Russellville, AR |
| US Congressional District(s) | Arkansas 3rd |
| State House Districts | 68,71 |
| State Senate Districts | 16 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 79.56% |
| African American | 3.61% |
| Hispanic | 0.79% |
| Asian | 2.16% |
| Native American | 0.03% |
| Hawaiin/Pacific Islander | 13.86% |