Sumner County, Kansas
Located in Kansas, Sumner County has a population of 22,353 residents and a median age of 41.3 years, making it the #1,757 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 10.6%. The median home value is $135,100, and the median household income is $63,951, which is 15% below the national median.
Demographics
Sumner County has a population of 22,353, making it the #1,757 most populous county in the US. The median age is 41.3 years, which is 6.2% 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 Sumner County is $63,951, ranking #1,713 out of 3,222 counties — 14.9% below the national median. The poverty rate is 10.6% and unemployment stands at 5.9%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Sumner County is $135,100 (-52.1% vs national). Renters pay a median of $825/mo and the homeownership rate is 75.1%.
Median Home Value Trend
Rankings →Household Type
Education
In Sumner County, 25.9% of adults age 25+ hold a bachelor's degree or higher, which is 23.1% below the national average, ranking #1,122 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Sumner County is 74.0 years. 18.0% of adults report poor or fair health and 10.2% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
19.0% of adults in Sumner County smoke , 39.8% are obese , and 18.1% report excessive drinking. The drug overdose death rate is 19.3 per 100,000.
Adult Smoking Trend
Safety
The suicide rate is 25.8 per 100,000. Motor vehicle deaths occur at a rate of 20.7 per 100,000.
Suicide Rate Trend
Families & Children
13.5% of children in Sumner County live in poverty . The teen birth rate is 17.3 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Sumner County is 63.5%. The mean commute time is 26.2 min, which is 4.9% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Sumner County voted Republican with a margin of 50.0%. The vote was 24% Dem / 74% Rep. Compared to 2020, the margin shifted +0.5 toward Democrats .
Vote Share Over Time
About Sumner County, Kansas
Sumner County, Kansas has a total population of 22,353, making it the 1,757th most populous county in the United States. The median age in Sumner County is 41.3 years, which is 6.2% above the national median of 38.9 years.
The median household income in Sumner County is $63,951, which ranks #1,713 of 3,222 counties nationwide. This is 14.9% below the national median of $75,149. The poverty rate is 10.6%, lower than the national rate of 12.6%. The unemployment rate stands at 5.9%.
The median home value in Sumner County is $135,100, 52.1% below the national median. Renters in Sumner County pay a median gross rent of $825 per month. The homeownership rate is 75.1%, compared to the national rate of 64.4%.
In Sumner County, 25.9% of residents aged 25 and older hold a bachelor's degree or higher, 23.1% below the national average of 33.7%. Health insurance coverage stands at 91.3% of the population. The average commute time for workers is 26.2 min.
Sumner County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 86.5% of the population, followed by Hispanic or Latino (6.1%) and Two or More Races (4.7%).
All data for Sumner County, Kansas 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.