Allen County, Kansas Demographics 2026

Population Overview

Allen County is located in Kansas with a total population of 12,491. It is the 36th most populous county out of 105 in Kansas. The county encompasses 4 Census-designated places.

Age Demographics

The median age in Allen County is 41.3 years. This is 11% higher than the state median of 37.2 years.

Economy, Income & Housing

The median household income in Allen County is $57,618. This is 21% lower than the state median of $72,639. Compared to the national median of $78,538, household income here is 27% lower. The poverty rate stands at 13.1%. This is 14% higher than the state poverty rate of 11.5%. The unemployment rate is 6.9%. This is 76% higher than the state rate of 3.9%. The median home value is $100,400. Housing costs are 51% lower than the state median of $203,400. With a home-value-to-income ratio of just 1.7x, Allen County is one of the most affordable housing markets in the area. 74.5% of occupied housing units are owner-occupied. This homeownership rate is 11% higher than the state average of 66.9%.

Race & Ethnicity

Allen County has a predominantly White (non-Hispanic) population, comprising 89.0% of all residents. Hispanic or Latino residents account for 4.1%. The Black or African American population (1.9%) is well below the state average of 5.3%. The Hispanic or Latino population (4.1%) is well below the state average of 13.3%. The Asian population (0.7%) is well below the state average of 2.9%.

Education

21.3% 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 93.5%.