U.S. postal lookup

U.S. ZIP Codes Database 2026

Search by ZIP code, city, county, or state and find clear postal details with maps, time zones, and area code data.

42,735 verified records
All states and U.S. territories
Maps and coordinates
State directory

Pennsylvania ZIP Codes

Complete postal directory, details, and geographic map for the State of Pennsylvania.

State ZIP Code City County Area Codes
PA 17042 Lebanon Lebanon County 223, 717
PA 17043 Lemoyne Cumberland County 223, 717
PA 17044 Lewistown Mifflin County 223, 717
PA 17045 Liverpool Perry County 223, 272, 570, 717
PA 17046 Lebanon Lebanon County 223, 717
PA 17047 Loysville Perry County 223, 717
PA 17048 Lykens Dauphin County 223, 272, 570, 717
PA 17049 Mc Alisterville Juniata County 223, 717
PA 17050 Mechanicsburg Cumberland County 223, 717
PA 17051 Mc Veytown Mifflin County 223, 582, 717, 814
Page 106 of 222

Geographic Map of Pennsylvania

Postal context

About U.S. ZIP Codes

ZIP codes are a United States Postal Service system introduced in 1963 to make mail routing more accurate and efficient. The standard format uses five digits, while ZIP+4 adds four more digits for a more precise delivery segment.

ZIP codes cover the United States, its territories, military mail routes, and other USPS delivery points. This directory organizes that data for practical lookup by ZIP code, city, county, and state.