| Name | Marion County |
| State | Missouri |
| FIPS Code | 29127 |
| County Seat | Palmyra |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 28,703 |
| Population Growth Rate(2000-2022) | -0.89% |
| Majority Ethnicity | White 93.28% |
| Public School Majority Ethnicity | White 85% |
| Partisan Voting Index | Strongly Republican:+24 |
| Unemployment Rate (December 2024) | 3.3% |
| Area Code(s) | 235 / 573 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 93.28% |
| African American | 5.66% |
| Hispanic | 0.27% |
| Asian | 0.72% |
| Native American | 0.04% |
| Hawaiin/Pacific Islander | 0.04% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 85.17% |
| African American | 6.27% |
| Hispanic | 2.31% |
| Asian | 0.58% |
| Native American | 0.08% |
| Hawaiin/Pacific Islander | 0.04% |