| Place Name | Harristown Township |
| Place Type | Township |
| ZIP Code(s) | 62521 62522 62526 62537 62551 |
| County | Macon County |
| Area Code(s) | 217 |
| Timezone | Central Standard Time (CST) |
| Population (2021) | 1,693 |
| Majority Ethnicity | White 98.74% |
| Metro/Micro Stats Area | Decatur, IL |
| US Congressional District(s) | Illinois 13th |
| State House Districts | 96 |
| State Senate Districts | 48 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 98.74% |
| African American | 0.72% |
| Hispanic | 0% |
| Asian | 0.54% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |