ZIP Code 99639

ZIP code 99639 is classified by USPS as a standard delivery area and covers roughly 565.5 square miles in Ninilchik, Kenai Peninsula County, Alaska. The area is home to 1,131 residents, producing a population density of 2 people per square mile, and falls within the Anchorage time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 99639 against Alaska and the nation.

On the economic side, the median household income for ZIP 99639 sits at $47,333 (35% below the Alaska average), while per-capita income is $33,502. The poverty rate stands at 19.7% and the unemployment rate at 5.5%. On housing, the median home value is $250,800 (19% above the state average) with median rent at $1,007 per month, and 85.3% of occupied units are owner-occupied, a direct signal of whether 99639 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 55.9, and the average commute is —. We also surface 1 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Kenai Peninsula County, so you can benchmark 99639 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 →