| Place Name | Festus |
| Place Type | City |
| ZIP Code(s) | 63028 |
| County | Jefferson County |
| Area Code(s) | 636 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 11,559 |
| Population Growth Rate (2010-19) | 9.52% |
| Majority Ethnicity | White 92.03% |
| Metro/Micro Stats Area | St. Louis, MO-IL |
| US Congressional District(s) | Missouri 3rdMissouri 8th |
| State House Districts | 114 |
| State Senate Districts | 3,22 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 92.03% |
| African American | 2.43% |
| Hispanic | 0.15% |
| Asian | 0.69% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 4.7% |