Lewis County, Missouri
Located in Missouri, Lewis County has a population of 9,924 residents and a median age of 37.6 years, making it the #2,488 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 12.7%. The median home value is $130,200, and the median household income is $59,934, which is 20% below the national median.
Demographics
Lewis County has a population of 9,924, making it the #2,488 most populous county in the US. The median age is 37.6 years, which is 3.3% below the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Geographic Mobility (Past Year)
Economy
The median household income in Lewis County is $59,934, ranking #2,091 out of 3,222 counties — 20.2% below the national median. The poverty rate is 12.7% and unemployment stands at 5.1%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Lewis County is $130,200 (-53.8% vs national). Renters pay a median of $644/mo and the homeownership rate is 76.3%.
Median Home Value Trend
Rankings →Household Type
Education
In Lewis County, 16.8% of adults age 25+ hold a bachelor's degree or higher, which is 50.0% below the national average, ranking #2,522 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Lewis County is 75.4 years. 22.7% of adults report poor or fair health and 13.3% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
23.9% of adults in Lewis County smoke , 39.9% are obese , and 20.5% report excessive drinking.
Adult Smoking Trend
Safety
The suicide rate is 26.9 per 100,000. Motor vehicle deaths occur at a rate of 14.4 per 100,000.
Suicide Rate Trend
Families & Children
18.7% of children in Lewis County live in poverty . The teen birth rate is 10.2 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Lewis County is 60.6%. The mean commute time is 25.8 min, which is 6.3% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Lewis County voted Republican with a margin of 60.1%. The vote was 19.4% Dem / 79.5% Rep. Compared to 2020, the margin shifted 4.3 toward Republicans .
Vote Share Over Time
About Lewis County, Missouri
Lewis County, Missouri has a total population of 9,924, making it the 2,488th most populous county in the United States. The median age in Lewis County is 37.6 years, which is 3.3% below the national median of 38.9 years.
The median household income in Lewis County is $59,934, which ranks #2,091 of 3,222 counties nationwide. This is 20.2% below the national median of $75,149. The poverty rate is 12.7%, higher than the national rate of 12.6%. The unemployment rate stands at 5.1%.
The median home value in Lewis County is $130,200, 53.8% below the national median. Renters in Lewis County pay a median gross rent of $644 per month. The homeownership rate is 76.3%, compared to the national rate of 64.4%.
In Lewis County, 16.8% of residents aged 25 and older hold a bachelor's degree or higher, 50.0% below the national average of 33.7%. Health insurance coverage stands at 89.3% of the population. The average commute time for workers is 25.8 min.
Lewis County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 91.5% of the population, followed by Black (non-Hispanic) (3.9%) and Two or More Races (2.9%).
All data for Lewis County, Missouri comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.