| Place Name | Henderson Township |
| Place Type | Township |
| ZIP Code(s) | 61401 61439 61467 61472 61488 |
| County | Knox County |
| Area Code(s) | 309 |
| Timezone | Central Daylight Time (CDT) |
| Population (2021) | 1,550 |
| Majority Ethnicity | White 91.21% |
| 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 | 91.21% |
| African American | 0.77% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 8.02% |