| Name | Warren County |
| State | Missouri |
| FIPS Code | 29219 |
| County Seat | Warrenton |
| Timezone | Central Daylight Time (CDT) |
| Population (2024) | 37,815 |
| Population Growth Rate(2020-2024) | 6.03% |
| Majority Ethnicity | White 92.48% |
| Public School Majority Ethnicity | White 82% |
| Partisan Voting Index | Strongly Republican:+25 |
| Unemployment Rate (May 2026) | 4.0% |
| Sales Tax Rate (2025) | 6.73% |
| Area Code(s) | 636 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 92.48% |
| African American | 2.19% |
| Hispanic | 4.11% |
| Asian | 0.52% |
| Native American | 0.7% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 81.89% |
| African American | 3.45% |
| Hispanic | 8.12% |
| Asian | 0.38% |
| Native American | 0.25% |
| Hawaiin/Pacific Islander | 0.08% |