| Place Name | Chatham |
| Place Type | Village |
| ZIP Code(s) | 62629 |
| County | Sangamon County |
| Area Code(s) | 217 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 11,807 |
| Population Growth Rate (2010-19) | 25.02% |
| Majority Ethnicity | White 95.21% |
| Metro/Micro Stats Area | Springfield, IL |
| US Congressional District(s) | Illinois 18th |
| State House Districts | 99 |
| State Senate Districts | 50 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 95.21% |
| African American | 1.89% |
| Hispanic | 0% |
| Asian | 1.15% |
| Native American | 0.06% |
| Hawaiin/Pacific Islander | 1.68% |