156421 Zip Apr 2026

A mix of historic borough residential areas and suburban developments.

: A full 9-digit code like 15642-1XXX , where the "1" is the start of the four-digit extension used for more precise mail sorting. 156421 zip

Was this information for , or were you looking for a specific 9-digit ZIP code ? ZIP Code™ - The Basics - FAQ | USPS A mix of historic borough residential areas and