Osage County, Kansas Demographics 2026
Osage County, Kansas has a population of 15,744, the 32nd most populous county in Kansas. The median household income is $74,467 and the median home value is $156,800. The poverty rate is 9.7%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Osage County Quick Facts
How Osage County Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 15,780 | 15,744 | -0.2% |
| Median household income | $70,216 | $74,467 | +6.1% |
| Median home value | $142,800 | $156,800 | +9.8% |
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 45 | National average: 61
Education
Educational Attainment (Adults 25+)
Cities & Places in Osage County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Osage City | 2,828 | $71,191 | 8.9% | $155,800 |
| Carbondale | 1,341 | $75,750 | 15.2% | $119,400 |
| Overbrook | 1,113 | $68,958 | 6.5% | $146,300 |
| Burlingame | 1,046 | $60,202 | 9.9% | $86,700 |
| Lyndon | 1,023 | $67,227 | 8.8% | $114,400 |
| Scranton | 911 | $56,793 | 18.4% | $75,900 |
| Vassar | 832 | $68,036 | 6.3% | $176,300 |
| Quenemo | 353 | $50,833 | 29.4% | $53,800 |
| Melvern | 352 | $55,893 | 13.9% | $89,100 |
| Olivet | 180 | $93,594 | 13.3% | $157,700 |
Explore Kansas Rankings
Population Overview
Osage County is located in Kansas with a total population of 15,744. It is the 32nd most populous county out of 105 in Kansas. The county encompasses 10 Census-designated places.
Age Demographics
The median age in Osage County is 42.9 years. This is 15% higher than the state median of 37.4 years.
Economy, Income & Housing
The median household income in Osage County is $74,467. This is about the same as the state median of $74,275. It is also 8% lower than the national median of $80,734. The poverty rate stands at 9.7%. This is 14% lower than the state poverty rate of 11.3%. The unemployment rate is 1.9%. This is 51% lower than the state rate of 3.9%. The median home value is $156,800. Housing costs are 28% lower than the state median of $217,200. With a home-value-to-income ratio of just 2.1x, Osage County is one of the most affordable housing markets in the area. 82.3% of occupied housing units are owner-occupied. This homeownership rate is 23% higher than the state average of 67.2%.
Race & Ethnicity
Osage County has a predominantly White (non-Hispanic) population, comprising 92.1% of all residents. Hispanic or Latino residents account for 3.4%. The Black or African American population (0.3%) is well below the state average of 5.1%. The Hispanic or Latino population (3.4%) is well below the state average of 13.6%. The Asian population (0.1%) is well below the state average of 2.9%.
Education
21.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 39% lower than the state rate of 35.6%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 93.7%.
Data Sources & Methodology
All figures for Osage County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Kansas and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.
Frequently Asked Questions
What is the population of Osage County, Kansas?
Osage County has a population of 15,744, making it the 32nd most populous county in Kansas.
What is the median income in Osage County?
The median household income in Osage County is $74,467 with a poverty rate of 9.7%.
How many cities are in Osage County, Kansas?
Osage County contains 10 Census-designated places.