156421 Zip Today

Retail, healthcare, and light manufacturing, with many residents commuting to Pittsburgh for work. Potential Alternatives If "156421" was a typo, you might be looking for: 15642 : Irwin, PA (the most likely intent). 16421 : A ZIP Code in Erie County, PA .

The 15642 ZIP Code serves Irwin, North Huntingdon, and portions of Penn Township in Pennsylvania. It is located approximately 20 miles southeast of Pittsburgh. Community & Infrastructure Irwin County: Westmoreland County 156421 zip

Most students in this ZIP Code attend the Norwin School District . Demographics & Economy and light manufacturing

A mix of historic borough residential areas and suburban developments. 156421 zip