Sumner County, Kansas
Sumner County is a county in Kansas with an estimated population of 22,334 in 2023. 7 cities, towns and Census places in it are indexed here.
Largest places in Sumner County
Wellington 7,568Belle Plaine 1,452Conway Springs 1,117Oxford 1,042Caldwell 1,008Argonia 451South Haven 326
About Sumner County
Sumner 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.