ZIP Code 63631

ZIP code 63631 is classified by USPS as a standard delivery area and covers roughly 107.5 square miles in Caledonia, Washington County, Missouri. The area is home to 849 residents, producing a population density of 8 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 63631 against Missouri and the nation.

On the economic side, the median household income for ZIP 63631 sits at $74,211 (11% above the Missouri average), while per-capita income is $33,161. The poverty rate stands at 9.7% and the unemployment rate at 1.5%. On housing, the median home value is $127,500 (33% below the state average) with median rent at $790 per month, and 82.7% of occupied units are owner-occupied, a direct signal of whether 63631 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 14.4% of adults hold a bachelor's degree or higher, the median age is 56.1, and the average commute is —. We also surface 5 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Washington County, so you can benchmark 63631 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 →