Osage County, Missouri
Located in Missouri, Osage County has a population of 13,402 residents and a median age of 41.1 years, making it the #2,261 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 8.6%. The median home value is $223,300, and the median household income is $76,681, which is 2% above the national median.
Demographics
Osage County has a population of 13,402, making it the #2,261 most populous county in the US. The median age is 41.1 years, which is 5.7% 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 Osage County is $76,681, ranking #740 out of 3,222 counties — 2.0% above the national median. The poverty rate is 8.6% and unemployment stands at 1.7%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Osage County is $223,300 (-20.8% vs national). Renters pay a median of $639/mo and the homeownership rate is 79.4%.
Median Home Value Trend
Rankings →Household Type
Education
In Osage County, 24.7% of adults age 25+ hold a bachelor's degree or higher, which is 26.8% below the national average, ranking #1,271 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Osage County is 77.9 years. 16.5% of adults report poor or fair health and 9.0% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
19.5% of adults in Osage County smoke , 36.6% are obese , and 23.3% report excessive drinking.
Adult Smoking Trend
Safety
The suicide rate is 27.2 per 100,000. Motor vehicle deaths occur at a rate of 12.6 per 100,000.
Suicide Rate Trend
Families & Children
11.6% of children in Osage County live in poverty . The teen birth rate is 6.6 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Osage County is 71.9%. The mean commute time is 28.8 min, which is 4.5% above the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Osage County voted Republican with a margin of 73.1%. The vote was 13.1% Dem / 86.2% Rep. Compared to 2020, the margin shifted 1.7 toward Republicans .
Vote Share Over Time
About Osage County, Missouri
Osage County, Missouri has a total population of 13,402, making it the 2,261st most populous county in the United States. The median age in Osage County is 41.1 years, which is 5.7% above the national median of 38.9 years.
The median household income in Osage County is $76,681, which ranks #740 of 3,222 counties nationwide. This is 2.0% above the national median of $75,149. The poverty rate is 8.6%, lower than the national rate of 12.6%. The unemployment rate stands at 1.7%.
The median home value in Osage County is $223,300, 20.8% below the national median. Renters in Osage County pay a median gross rent of $639 per month. The homeownership rate is 79.4%, compared to the national rate of 64.4%.
In Osage County, 24.7% of residents aged 25 and older hold a bachelor's degree or higher, 26.8% below the national average of 33.7%. Health insurance coverage stands at 95.9% of the population. The average commute time for workers is 28.8 min.
Osage County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 96.6% of the population, followed by Two or More Races (1.8%) and Hispanic or Latino (1.1%).
All data for Osage 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.