ZIP Code 58011

ZIP code 58011 is classified by USPS as a standard delivery area and covers roughly 279.3 square miles in Buffalo, Cass County, North Dakota. The area is home to 391 residents, producing a population density of 1 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 58011 against North Dakota and the nation.

On the economic side, the median household income for ZIP 58011 sits at $99,853 (21% above the North Dakota average), while per-capita income is $48,088. The poverty rate stands at 5.6% and the unemployment rate at 0.8%. On housing, the median home value is $245,400 (36% above the state average) with median rent at $2,083 per month, and 92.1% of occupied units are owner-occupied, a direct signal of whether 58011 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 40.3% of adults hold a bachelor's degree or higher, the median age is 48.6, and the average commute is 19 minutes. We also surface 3 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Cass County, so you can benchmark 58011 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 →