| Name | Lewis County |
| State | Missouri |
| FIPS Code | 29111 |
| County Seat | Monticello |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 10,203 |
| Population Growth Rate(2000-2022) | -1.75% |
| Majority Ethnicity | White 95.15% |
| Public School Majority Ethnicity | White 93% |
| Partisan Voting Index | Strongly Republican:+26 |
| Unemployment Rate (November 2024) | 2.9% |
| Area Code(s) | 235 / 573 / 660 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 95.15% |
| African American | 3.98% |
| Hispanic | 0.15% |
| Asian | 0.49% |
| Native American | 0.11% |
| Hawaiin/Pacific Islander | 0.11% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 93.18% |
| African American | 1.63% |
| Hispanic | 1.28% |
| Asian | 0.21% |
| Native American | 0.14% |
| Hawaiin/Pacific Islander | 0% |