Lewis County's estimated 2026 population is 9,905 with a growth rate of 0.26% 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 -2.95% since that time.
Data after 2023 is projected based on recent change
Overall: 37.6 years
Female: 39.3 years
Male: 36 years
There are 7,816 adults, (1,912 of whom are seniors) in Lewis County.
Female: 4,888 (49.3%)
Male: 5,036 (50.7%)
The racial composition of Lewis County includes 91.7% White, 3.86% Black or African American, and smaller percentages for Asian, other race, Native American and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 9,100 | 91.7% |
| Black or African American | 383 | 3.86% |
| Two or more races | 383 | 3.86% |
| Asian | 50 | 0.5% |
| Other race | 6 | 0.06% |
| Native American | 2 | 0.02% |
Lewis County's average per capita income is $42,397. Household income levels show a median of $59,934. The poverty rate stands at 12.69%.
Name | Median | Mean |
|---|---|---|
| Married Families | $89,583 | - |
| Families | $86,510 | $100,891 |
| Households | $59,934 | $75,912 |
| Non Families | $31,647 | $37,331 |
Average Income
Median Household Income
Poverty Rate