| Place Name | Gillespie Township |
| Place Type | Township |
| ZIP Code(s) | 62009 62014 62033 62685 |
| County | Macoupin County |
| Area Code(s) | 618,217 |
| Timezone | Central Standard Time (CST) |
| Population (2021) | 3,683 |
| Majority Ethnicity | White 97.51% |
| Metro/Micro Stats Area | St. Louis, MO-IL |
| US Congressional District(s) | Illinois 13th |
| State House Districts | 95 |
| State Senate Districts | 48 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 97.51% |
| African American | 0.36% |
| Hispanic | 0.44% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1.7% |