| Name | Lewis County |
| State | Missouri |
| FIPS Code | 29111 |
| County Seat | Monticello |
| Timezone | Central Daylight Time (CDT) |
| Population (2024) | 9,840 |
| Population Growth Rate(2020-2024) | -1.99% |
| Majority Ethnicity | White 94.91% |
| Public School Majority Ethnicity | White 93% |
| Partisan Voting Index | Strongly Republican:+30 |
| Unemployment Rate (May 2026) | 5.3% |
| Sales Tax Rate (2025) | 7.36% |
| Area Code(s) | 235 / 573 / 660 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 94.91% |
| African American | 3.13% |
| Hispanic | 1.24% |
| Asian | 0.48% |
| Native American | 0.08% |
| Hawaiin/Pacific Islander | 0.17% |
| 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% |