ZIP Code 66543

ZIP code 66543 is classified by USPS as a standard delivery area and covers roughly 22.7 square miles in Vassar, Osage County, Kansas. The area is home to 725 residents, producing a population density of 32 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 66543 against Kansas and the nation.

On the economic side, the median household income for ZIP 66543 sits at $75,288 (5% above the Kansas average), while per-capita income is $38,860. The poverty rate stands at 5.4% and the unemployment rate at 2.6%. On housing, the median home value is $172,200 (6% above the state average) with median rent at $1,167 per month, and 88.8% of occupied units are owner-occupied, a direct signal of whether 66543 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 19.4% of adults hold a bachelor's degree or higher, the median age is 46.2, and the average commute is —. We also surface 4 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Osage County, so you can benchmark 66543 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 →