| Name | Maries County |
| State | Missouri |
| FIPS Code | 29125 |
| County Seat | Vienna |
| Timezone | Central Daylight Time (CDT) |
| Population (2024) | 8,441 |
| Population Growth Rate(2020-2024) | 0.17% |
| Majority Ethnicity | White 97.08% |
| Public School Majority Ethnicity | White 94% |
| Partisan Voting Index | Strongly Republican:+34 |
| Unemployment Rate (May 2026) | 3.9% |
| Area Code(s) | 235 / 573 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 97.08% |
| African American | 0.17% |
| Hispanic | 1.97% |
| Asian | 0.1% |
| Native American | 0.68% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 93.56% |
| African American | 1.23% |
| Hispanic | 2.36% |
| Asian | 0.38% |
| Native American | 0.59% |
| Hawaiin/Pacific Islander | 0.16% |