Clark County, Missouri
Located in Missouri, Clark County has a population of 6,675 residents and a median age of 43.5 years, making it the #2,762 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 11.2%. The median home value is $130,700, and the median household income is $51,781, which is 31% below the national median.
Demographics
Clark County has a population of 6,675, making it the #2,762 most populous county in the US. The median age is 43.5 years, which is 11.8% above 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 Clark County is $51,781, ranking #2,675 out of 3,222 counties — 31.1% below the national median. The poverty rate is 11.2% and unemployment stands at 5.0%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Clark County is $130,700 (-53.6% vs national). Renters pay a median of $612/mo and the homeownership rate is 78.3%.
Median Home Value Trend
Rankings →Household Type
Education
In Clark County, 14.9% of adults age 25+ hold a bachelor's degree or higher, which is 55.9% below the national average, ranking #2,837 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Clark County is 77.2 years. 22.6% of adults report poor or fair health and 12.9% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
24.9% of adults in Clark County smoke , 40.4% are obese , and 21.3% report excessive drinking.
Adult Smoking Trend
Safety
. Motor vehicle deaths occur at a rate of 21.1 per 100,000.
Motor Vehicle Deaths Trend
Families & Children
20.7% of children in Clark County live in poverty . The teen birth rate is 24.9 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Clark County is 65.1%. The mean commute time is 28.4 min, which is 2.8% above the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Clark County voted Republican with a margin of 61.6%. The vote was 18.8% Dem / 80.4% Rep. Compared to 2020, the margin shifted 2.9 toward Republicans .
Vote Share Over Time
About Clark County, Missouri
Clark County, Missouri has a total population of 6,675, making it the 2,762nd most populous county in the United States. The median age in Clark County is 43.5 years, which is 11.8% above the national median of 38.9 years.
The median household income in Clark County is $51,781, which ranks #2,675 of 3,222 counties nationwide. This is 31.1% below the national median of $75,149. The poverty rate is 11.2%, lower than the national rate of 12.6%. The unemployment rate stands at 5.0%.
The median home value in Clark County is $130,700, 53.6% below the national median. Renters in Clark County pay a median gross rent of $612 per month. The homeownership rate is 78.3%, compared to the national rate of 64.4%.
In Clark County, 14.9% of residents aged 25 and older hold a bachelor's degree or higher, 55.9% below the national average of 33.7%. Health insurance coverage stands at 89.1% of the population. The average commute time for workers is 28.4 min.
Clark County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 94.9% of the population, followed by Two or More Races (2.1%) and Black (non-Hispanic) (1.9%).
All data for Clark 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.