Osage County, Missouri Demographics 2026
Osage County, Missouri has a population of 13,379, the 73rd most populous county in Missouri. The median household income is $75,355 and the median home value is $205,700. The poverty rate is 10.1%.
Osage County Quick Facts
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: 39 | National average: 61
Education
Educational Attainment (Adults 25+)
Cities & Places in Osage County
Explore Missouri Rankings
Population Overview
Osage County is located in Missouri with a total population of 13,379. It is the 73rd most populous county out of 115 in Missouri. The county encompasses 7 Census-designated places.
Age Demographics
The median age in Osage County is 40.8 years. This is 5% higher than the state median of 38.9 years.
Economy, Income & Housing
The median household income in Osage County is $75,355. This is 9% higher than the state median of $68,920. It is also 4% lower than the national median of $78,538. The poverty rate stands at 10.1%. This is 20% lower than the state poverty rate of 12.6%. The unemployment rate is 1.8%. This is 57% lower than the state rate of 4.1%. The median home value is $205,700. Housing costs are 5% lower than the state median of $215,600. With a home-value-to-income ratio of just 2.7x, Osage County is one of the most affordable housing markets in the area. 81.3% of occupied housing units are owner-occupied. This homeownership rate is 20% higher than the state average of 67.9%.
Race & Ethnicity
Osage County has a predominantly White (non-Hispanic) population, comprising 97.0% of all residents. Hispanic or Latino residents account for 1.1%. The Black or African American population (0.2%) is well below the state average of 11.0%. The Hispanic or Latino population (1.1%) is well below the state average of 5.1%. The Asian population (0.0%) is well below the state average of 2.1%.
Education
24.8% of residents aged 25 and older hold a bachelor's degree or higher. This is 22% lower than the state rate of 31.9%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 92.0%.
Data Sources & Methodology
All figures for Osage County come from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023), with comparisons drawn against Missouri 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, Missouri?
Osage County has a population of 13,379, making it the 73rd most populous county in Missouri.
What is the median income in Osage County?
The median household income in Osage County is $75,355 with a poverty rate of 10.1%.
How many cities are in Osage County, Missouri?
Osage County contains 7 Census-designated places.