ZIP Code 83251

ZIP code 83251 is classified by USPS as a standard delivery area and covers roughly 2742.5 square miles in Mackay, Custer County, Idaho. The area is home to 1,097 residents, producing a population density of 0 people per square mile, and falls within the Boise time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 83251 against Idaho and the nation.

On the economic side, the median household income for ZIP 83251 sits at $73,482 (0% above the Idaho average), while per-capita income is $39,453. The poverty rate stands at 17.8% and the unemployment rate at 6.0%. On housing, the median home value is $366,900 (3% below the state average) with median rent at - per month, and 79.3% of occupied units are owner-occupied, a direct signal of whether 83251 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 31.8% of adults hold a bachelor's degree or higher, the median age is 60.6, and the average commute is —. Use the benchmarks above to see where 83251 sits relative to Idaho 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 →