Sullivan County, Missouri
Located in Missouri, Sullivan County has a population of 5,857 residents and a median age of 44.1 years, making it the #2,822 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 13.7%. The median home value is $115,600, and the median household income is $56,964, which is 24% below the national median.
Demographics
Sullivan County has a population of 5,857, making it the #2,822 most populous county in the US. The median age is 44.1 years, which is 13.4% 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 Sullivan County is $56,964, ranking #2,332 out of 3,222 counties — 24.2% below the national median. The poverty rate is 13.7% and unemployment stands at 2.5%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Sullivan County is $115,600 (-59.0% vs national). Renters pay a median of $673/mo and the homeownership rate is 75.1%.
Median Home Value Trend
Rankings →Household Type
Education
In Sullivan County, 15.5% of adults age 25+ hold a bachelor's degree or higher, which is 53.9% below the national average, ranking #2,734 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Sullivan County is 74.7 years. 23.8% of adults report poor or fair health and 12.0% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
23.1% of adults in Sullivan County smoke , 40.0% are obese , and 19.4% report excessive drinking.
Adult Smoking Trend
Safety
The suicide rate is 48.2 per 100,000. Motor vehicle deaths occur at a rate of 28.2 per 100,000.
Motor Vehicle Deaths Trend
Families & Children
18.7% of children in Sullivan County live in poverty . The teen birth rate is 38.0 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Sullivan County is 54.1%. The mean commute time is 21.0 min, which is 23.8% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Sullivan County voted Republican with a margin of 66.0%. The vote was 16.6% Dem / 82.6% Rep. Compared to 2020, the margin shifted 5.4 toward Republicans .
Vote Share Over Time
About Sullivan County, Missouri
Sullivan County, Missouri has a total population of 5,857, making it the 2,822nd most populous county in the United States. The median age in Sullivan County is 44.1 years, which is 13.4% above the national median of 38.9 years.
The median household income in Sullivan County is $56,964, which ranks #2,332 of 3,222 counties nationwide. This is 24.2% below the national median of $75,149. The poverty rate is 13.7%, higher than the national rate of 12.6%. The unemployment rate stands at 2.5%.
The median home value in Sullivan County is $115,600, 59.0% below the national median. Renters in Sullivan County pay a median gross rent of $673 per month. The homeownership rate is 75.1%, compared to the national rate of 64.4%.
In Sullivan County, 15.5% of residents aged 25 and older hold a bachelor's degree or higher, 53.9% below the national average of 33.7%. Health insurance coverage stands at 91.3% of the population. The average commute time for workers is 21.0 min.
Sullivan County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 76.8% of the population, followed by Hispanic or Latino (18.1%) and Black (non-Hispanic) (2.7%).
All data for Sullivan 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.