In 2023, Sumner County, KS had a population of 22.4k people with a median age of 41.2 and a median household income of $60,348. Between 2022 and 2023 the population of Sumner County, KS declined from 22,517 to 22,386, a −0.582% decrease and its median household income grew from $59,397 to $60,348, a 1.6% increase.
The 5 largest ethnic groups in Sumner County, KS are White (Non-Hispanic) (87.2%), Two+ (Non-Hispanic) (4.23%), White (Hispanic) (2.75%), Two+ (Hispanic) (1.59%), and Black or African American (Non-Hispanic) (1.14%).
None of the households in Sumner County, KS reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
99.4% of the residents in Sumner County, KS are U.S. citizens.
In 2023, the median property value in Sumner County, KS was $118,700, and the homeownership rate was 74.4%.
Most people in Sumner County, KS drove alone to work, and the average commute time was 24.3 minutes. The average car ownership in Sumner County, KS was 2 cars per household.
Sumner County, KS borders Butler County, KS, Cowley County, KS, Harper County, KS, Kingman County, KS, Sedgwick County, KS, Grant County, OK, and Kay County, OK.