| Place Name | Marion |
| Place Type | City |
| ZIP Code(s) | 62959 |
| County | Williamson County |
| Area Code(s) | 618 |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 17,198 |
| Population Growth Rate (2010-19) | -1.97% |
| Majority Ethnicity | White 88.36% |
| Metro/Micro Stats Area | Carbondale-Marion, IL |
| US Congressional District(s) | Illinois 12th |
| State House Districts | 117 |
| State Senate Districts | 59 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 88.36% |
| African American | 8.13% |
| Hispanic | 0.03% |
| Asian | 1.76% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1.72% |