ZIP Code 15666

ZIP code 15666 is classified by USPS as a standard delivery area and covers roughly 142.4 square miles in Mount Pleasant, Westmoreland County, Pennsylvania. The area is home to 16,461 residents, producing a population density of 116 people per square mile, and falls within the New York time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 15666 against Pennsylvania and the nation.

On the economic side, the median household income for ZIP 15666 sits at $68,102 (13% below the Pennsylvania average), while per-capita income is $37,504. The poverty rate stands at 10.4% and the unemployment rate at 3.3%. On housing, the median home value is $163,100 (28% below the state average) with median rent at $799 per month, and 77.1% of occupied units are owner-occupied, a direct signal of whether 15666 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 22.8% of adults hold a bachelor's degree or higher, the median age is 50.2, and the average commute is 26 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Westmoreland County, so you can benchmark 15666 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 →