ZIP Code 83428

ZIP code 83428 is classified by USPS as a standard delivery area and covers roughly 594.3 square miles in Irwin, Bonneville County, Idaho. The area is home to 416 residents, producing a population density of 1 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 83428 against Idaho and the nation.

On the economic side, the median household income for ZIP 83428 sits at $68,750 (6% below the Idaho average), while per-capita income is $67,710. The poverty rate stands at 5.7% and the unemployment rate at 19.6%. On housing, the median home value is $574,400 (52% above the state average) with median rent at — per month, and 97.5% of occupied units are owner-occupied, a direct signal of whether 83428 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 31.7% of adults hold a bachelor's degree or higher, the median age is 56.2, and the average commute is —. Use the benchmarks above to see where 83428 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 →