Decatur County, Kansas
Located in Kansas, Decatur County has a population of 2,726 residents and a median age of 50.1 years, making it the #3,057 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 $89,500, and the median household income is $53,870, which is 28% below the national median.
Demographics
Decatur County has a population of 2,726, making it the #3,057 most populous county in the US. The median age is 50.1 years, which is 28.8% 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 Decatur County is $53,870, ranking #2,540 out of 3,222 counties — 28.3% below the national median. The poverty rate is 12.7% and unemployment stands at 4.1%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Decatur County is $89,500 (-68.3% vs national). Renters pay a median of $676/mo and the homeownership rate is 77.7%.
Median Home Value Trend
Rankings →Household Type
Education
In Decatur County, 27.0% of adults age 25+ hold a bachelor's degree or higher, which is 20.0% below the national average, ranking #1,017 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Decatur County is 75.4 years. 16.7% of adults report poor or fair health and 11.0% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
18.5% of adults in Decatur County smoke , 38.6% are obese , and 19.7% report excessive drinking.
Adult Smoking Trend
Safety
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Families & Children
21.8% of children in Decatur County live in poverty . The teen birth rate is 27.6 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Decatur County is 66.9%. The mean commute time is 20.0 min, which is 27.7% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Decatur County voted Republican with a margin of 69.0%. The vote was 14.8% Dem / 83.8% Rep. Compared to 2020, the margin shifted +1.2 toward Democrats .
Vote Share Over Time
About Decatur County, Kansas
Decatur County, Kansas has a total population of 2,726, making it the 3,057th most populous county in the United States. The median age in Decatur County is 50.1 years, which is 28.8% above the national median of 38.9 years.
The median household income in Decatur County is $53,870, which ranks #2,540 of 3,222 counties nationwide. This is 28.3% 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 4.1%.
The median home value in Decatur County is $89,500, 68.3% below the national median. Renters in Decatur County pay a median gross rent of $676 per month. The homeownership rate is 77.7%, compared to the national rate of 64.4%.
In Decatur County, 27.0% of residents aged 25 and older hold a bachelor's degree or higher, 20.0% below the national average of 33.7%. Health insurance coverage stands at 94.8% of the population. The average commute time for workers is 20.0 min.
Decatur County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 90.5% of the population, followed by Hispanic or Latino (4.8%) and Two or More Races (2.6%).
All data for Decatur 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.