Leavenworth County, Kansas
Located in Kansas, Leavenworth County has a population of 83,123 residents and a median age of 38.0 years, making it the #704 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 8.8%. The median home value is $282,900, and the median household income is $89,218, which is 19% above the national median.
Demographics
Leavenworth County has a population of 83,123, making it the #704 most populous county in the US. The median age is 38.0 years, which is 2.3% 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 Leavenworth County is $89,218, ranking #320 out of 3,222 counties — 18.7% above the national median. The poverty rate is 8.8% and unemployment stands at 3.8%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Leavenworth County is $282,900 (+0.4% vs national). Renters pay a median of $1,219/mo and the homeownership rate is 69.3%.
Median Home Value Trend
Rankings →Household Type
Education
In Leavenworth County, 36.1% of adults age 25+ hold a bachelor's degree or higher, which is 7.2% above the national average, ranking #426 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Leavenworth County is 77.0 years. 13.8% of adults report poor or fair health and 8.0% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
14.9% of adults in Leavenworth County smoke , 40.1% are obese , and 19.8% report excessive drinking. The drug overdose death rate is 23.9 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in Leavenworth County is 5.1 per 100,000 and the suicide rate is 17.7 per 100,000. Motor vehicle deaths occur at a rate of 14.3 per 100,000.
Homicide Rate Trend
Families & Children
9.0% of children in Leavenworth County live in poverty and the infant mortality rate is 6.7 per 1,000 live births. The teen birth rate is 14.7 per 1,000 females age 15–19.
Infant Mortality Trend
Civic & Transportation
Voter turnout in Leavenworth County is 59.6%. The mean commute time is 26.4 min, which is 4.4% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Leavenworth County voted Republican with a margin of 22.7%. The vote was 37.6% Dem / 60.3% Rep. Compared to 2020, the margin shifted 1.6 toward Republicans .
Vote Share Over Time
About Leavenworth County, Kansas
Leavenworth County, Kansas has a total population of 83,123, making it the 704th most populous county in the United States. The median age in Leavenworth County is 38.0 years, which is 2.3% below the national median of 38.9 years.
The median household income in Leavenworth County is $89,218, which ranks #320 of 3,222 counties nationwide. This is 18.7% above the national median of $75,149. The poverty rate is 8.8%, lower than the national rate of 12.6%. The unemployment rate stands at 3.8%.
The median home value in Leavenworth County is $282,900, 0.4% above the national median. Renters in Leavenworth County pay a median gross rent of $1,219 per month. The homeownership rate is 69.3%, compared to the national rate of 64.4%.
In Leavenworth County, 36.1% of residents aged 25 and older hold a bachelor's degree or higher, 7.2% above the national average of 33.7%. Health insurance coverage stands at 93.9% of the population. The average commute time for workers is 26.4 min.
Leavenworth County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 77.4% of the population, followed by Hispanic or Latino (7.6%) and Black (non-Hispanic) (6.8%).
All data for Leavenworth 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.