Osage County, Kansas Demographics 2026

Population Overview

Osage County is located in Kansas with a total population of 15,780. It is the 32nd most populous county out of 105 in Kansas. The county encompasses 1 Census-designated place.

Age Demographics

The median age in Osage County is 42.8 years. This is 15% higher than the state median of 37.2 years.

Economy, Income & Housing

The median household income in Osage County is $70,216. This is 3% lower than the state median of $72,639. Compared to the national median of $78,538, household income here is 11% lower. The poverty rate stands at 11.0%. This is 5% lower than the state poverty rate of 11.5%. The unemployment rate is 2.5%. This is 35% lower than the state rate of 3.9%. The median home value is $142,800. Housing costs are 30% lower than the state median of $203,400. With a home-value-to-income ratio of just 2.0x, Osage County is one of the most affordable housing markets in the area. 80.2% of occupied housing units are owner-occupied. This homeownership rate is 20% higher than the state average of 66.9%.

Race & Ethnicity

Osage County has a predominantly White (non-Hispanic) population, comprising 92.4% of all residents. Hispanic or Latino residents account for 3.2%. The Black or African American population (0.5%) is well below the state average of 5.3%. The Hispanic or Latino population (3.2%) is well below the state average of 13.3%. The Asian population (0.1%) is well below the state average of 2.9%.

Education

21.0% of residents aged 25 and older hold a bachelor's degree or higher. This is 40% lower than the state rate of 35.2%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 92.4%.