ZIP Code 58643

ZIP code 58643 is classified by USPS as a standard delivery area and covers roughly 636.7 square miles in Marmarth, Slope County, North Dakota. The area is home to 191 residents, producing a population density of 0 people per square mile, and falls within the Denver time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 58643 against North Dakota and the nation.

On the economic side, the median household income for ZIP 58643 sits at $62,188 (25% below the North Dakota average), while per-capita income is $43,804. The poverty rate stands at 7.6% and the unemployment rate at 3.2%. On housing, the median home value is $51,300 (71% below the state average) with median rent at $513 per month, and 73.2% of occupied units are owner-occupied, a direct signal of whether 58643 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 25.3% of adults hold a bachelor's degree or higher, the median age is 61, and the average commute is —. Use the benchmarks above to see where 58643 sits relative to North Dakota and the national baseline rather than viewing the numbers in isolation. 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 →