Lewis County's estimated 2026 population is 9,876 with a growth rate of 0.12% in the past year according to the most recent United States census data. Lewis County is the 86th largest county in Missouri. The 2010 population was 10,206 and has seen a growth of -3.23% since that time.
Data after 2023 is projected based on recent change
The racial composition of Lewis County includes 92.18% White, 3.04% Black or African American, and smaller percentages for Asian, Native Hawaiian or Pacific Islander, Native American, other race and multiracial populations.
White (92.18%)
Two or more races (4.04%)
Black or African American (3.04%)
Asian (0.46%)
Native Hawaiian or Pacific Islander (0.16%)
Native American (0.08%)
Other race (0.04%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 9,167 | 92.18% |
| Two or more races | 402 | 4.04% |
| Black or African American | 302 | 3.04% |
| Asian | 46 | 0.46% |
| Native Hawaiian or Pacific Islander | 16 | 0.16% |
| Native American | 8 | 0.08% |
| Other race | 4 | 0.04% |
Married
Widowed
Divorced
Separated
Never Married
Lewis County's average per capita income is $40,647. Household income levels show a median of $52,340. The poverty rate stands at 15.28%.
Name | Median | Mean |
|---|---|---|
| Married Families | $78,627 | - |
| Families | $76,250 | $91,708 |
| Households | $52,340 | $68,625 |
| Non Families | $29,017 | $35,228 |
Average Income
Median Household Income
Poverty Rate