In 2019, Allen County, KS had a population of 12.6k people with a median age of 41.9 and a median household income of $45,333. Between 2018 and 2019 the population of Allen County, KS declined from 12,630 to 12,556, a −0.586% decrease and its median household income grew from $42,679 to $45,333, a 6.22% increase.
The 5 largest ethnic groups in Allen County, KS are White (Non-Hispanic) (90.1%), Two+ (Non-Hispanic) (4.03%), White (Hispanic) (2.96%), Black or African American (Non-Hispanic) (0.996%), and Asian (Non-Hispanic) (0.749%). 0% of the households in Allen County, KS speak a non-English language at home as their primary language.
99.4% of the residents in Allen County, KS are U.S. citizens.
The largest universities in Allen County, KS are Allen County Community College (521 degrees awarded in 2019).
In 2019, the median property value in Allen County, KS was $79,300, and the homeownership rate was 70.8%. Most people in Allen County, KS drove alone to work, and the average commute time was 17.4 minutes. The average car ownership in Allen County, KS was 2 cars per household.