Pennsylvania ZIP Codes: Ranges, Prefixes and Major Cities

ZIP codes  |  July 9, 2026  |  2 min read

Pennsylvania uses 2,169 active ZIP codes, running from 15001 to 19612. This guide shows how those codes are grouped, which ones serve the state's largest cities and how to format them correctly.

ZIP code range and prefixes

Every Pennsylvania ZIP code starts with one of 47 three-digit prefixes. Each prefix points to a sectional center facility, the processing plant that sorts mail for a group of nearby post offices.

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Types of ZIP codes in Pennsylvania

ZIP codes for major Pennsylvania cities

Harrisburg is the state capital. Larger cities have many ZIP codes because each code follows mail delivery routes, not city limits.

Sample addresses

These examples use real city and ZIP pairs with invented street lines, so they are safe for testing and documentation.

Tips for working with these ZIP codes

• Store ZIP codes as text, not numbers, so the format stays consistent across states with leading zeros.
• All of Pennsylvania is in the Eastern time zone, which keeps scheduling logic simple.
• A quick sanity check: a valid PA ZIP code begins with one of the prefixes listed above.
• City names in addresses are post office names. A suburb may share a ZIP code and city name with a nearby larger town.