| Name | Saint Clair County |
| State | Missouri |
| FIPS Code | 29185 |
| County Seat | Osceola |
| Timezone | Central Daylight Time (CDT) |
| Population (2024) | 9,743 |
| Population Growth Rate(2020-2024) | 4.73% |
| Majority Ethnicity | White 96.6% |
| Public School Majority Ethnicity | White 94% |
| Partisan Voting Index | Strongly Republican:+31 |
| Unemployment Rate (May 2026) | 4.3% |
| Area Code(s) | 417 / 660 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 96.6% |
| African American | 0.81% |
| Hispanic | 2.22% |
| Asian | 0.25% |
| Native American | 0.12% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 93.66% |
| African American | 2.49% |
| Hispanic | 2.08% |
| Asian | 0.42% |
| Native American | 1.25% |
| Hawaiin/Pacific Islander | 0% |