156421 | Zip

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 .

Approximately 33,000 residents as of recent census estimates.

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If you are looking for information about the 5-digit ZIP Code , 15642 ZIP Code: Irwin, PA

💡 : U.S. ZIP Codes are always 5 digits in their basic form; the expanded ZIP+4 system uses 9 digits . Approximately 33,000 residents as of recent census estimates

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

A mix of historic borough residential areas and suburban developments. ZIP Codes are always 5 digits in their

Served by U.S. Route 30 and the Pennsylvania Turnpike (I-76), which has an exit in the area.