Pennsylvania Zip Codes

2,213 Zip Codes serve Pennsylvania

Overview

Pennsylvania, like the rest of the United States, employs a ZIP code system to facilitate efficient mail delivery. ZIP codes (an acronym for "Zone Improvement Plan") are numerical codes assigned to specific geographic areas, helping to streamline the sorting and delivery process. In Pennsylvania, ZIP codes generally follow a pattern where the first digit represents a group of U.S. states, the next two digits narrow down the area to a specific post office or region, and the last two digits provide more localized delivery information. The ZIP code system in Pennsylvania, as in other states, aids in the accurate and timely delivery of mail and packages, contributing to the overall efficiency of the postal service.

Pennsylvania Zip Codes List