In 2020, Riley County, KS had a population of 74.1k people with a median age of 25.1 and a median household income of $51,098. Between 2019 and 2020 the population of Riley County, KS declined from 75,056 to 74,059, a −1.33% decrease and its median household income declined from $51,208 to $51,098, a −0.215% decrease.
The 5 largest ethnic groups in Riley County, KS are White (Non-Hispanic) (76.1%), Black or African American (Non-Hispanic) (6.19%), White (Hispanic) (5.67%), Asian (Non-Hispanic) (4.95%), and Two+ (Non-Hispanic) (3.71%).
None of the households in Riley 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.
95.1% of the residents in Riley County, KS are U.S. citizens.
The largest universities in Riley County, KS are Kansas State University (6,030 degrees awarded in 2021), Manhattan Area Technical College (400 degrees), and Bellus Academy (116 degrees).
In 2020, the median property value in Riley County, KS was $205,900, and the homeownership rate was 43.6%.
Most people in Riley County, KS drove alone to work, and the average commute time was 15 minutes. The average car ownership in Riley County, KS was 2 cars per household.
Riley County, KS borders Clay County, KS, Geary County, KS, Marshall County, KS, Pottawatomie County, KS, Wabaunsee County, KS, and Washington County, KS.