Allen County, Kansas

Allen County is a county in Kansas with an estimated population of 12,412 in 2023. 5 cities, towns and Census places in it are indexed here.

Largest places in Allen County

About Allen County

Allen County is one of the counties of Kansas. County governments in Kansas handle local services such as courts, property records and elections; cities and towns inside the county run their own municipal services. Population figures come from the Census Bureau's Vintage 2023 estimates, which are updated annually.