ZIP Code 66858

ZIP code 66858 is classified by USPS as a standard delivery area and covers roughly 198.3 square miles in Lincolnville, Marion County, Kansas. The area is home to 456 residents, producing a population density of 2 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 66858 against Kansas and the nation.

On the economic side, the median household income for ZIP 66858 sits at $76,563 (6% above the Kansas average), while per-capita income is $35,633. The poverty rate stands at 6.8% and the unemployment rate at 5.2%. On housing, the median home value is $92,500 (43% below the state average) with median rent at $569 per month, and 93.7% of occupied units are owner-occupied, a direct signal of whether 66858 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 33.3% of adults hold a bachelor's degree or higher, the median age is 51, and the average commute is —. We also surface 4 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Marion County, so you can benchmark 66858 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 →