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.

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Pennsylvania ZIP Codes

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

State ZIP Code City County Area Codes
PA 16939 Morris Run Tioga County 272, 570
PA 16940 Nelson Tioga County 582, 814
PA 16941 Genesee Potter County 582, 607, 814
PA 16942 Osceola Tioga County 582, 607, 814
PA 16943 Sabinsville Tioga County 582, 814
PA 16945 Sylvania Bradford County 570
PA 16946 Tioga Tioga County 272, 570, 582, 814
PA 16947 Troy Bradford County 272, 570
PA 16948 Ulysses Potter County 582, 814
PA 16950 Westfield Tioga County 582, 607, 814
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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.