ZIP Code 66531

ZIP code 66531 is classified by USPS as a standard delivery area and covers roughly 98.6 square miles in Riley, Riley County, Kansas. The area is home to 1,380 residents, producing a population density of 14 people per square mile, and falls within the Chicago time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 66531 against Kansas and the nation.

On the economic side, the median household income for ZIP 66531 sits at $79,063 (10% above the Kansas average), while per-capita income is $37,316. The poverty rate stands at 3.7% and the unemployment rate at 2.0%. On housing, the median home value is $188,000 (16% above the state average) with median rent at $1,203 per month, and 93.0% of occupied units are owner-occupied, a direct signal of whether 66531 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 31.4% of adults hold a bachelor's degree or higher, the median age is 39.9, and the average commute is 26 minutes. We also surface 2 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Riley County, so you can benchmark 66531 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →