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
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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 18437 Lake Como Wayne County 272, 570
PA 18438 Lakeville Wayne County 272, 570
PA 18439 Lakewood Wayne County 272, 570
PA 18440 La Plume Lackawanna County 272, 570
PA 18441 Lenoxville Susquehanna County 272, 570
PA 18443 Milanville Wayne County 272, 570
PA 18444 Moscow Lackawanna County 272, 570
PA 18445 Newfoundland Wayne County 272, 570
PA 18446 Nicholson Wyoming County 272, 570
PA 18447 Olyphant Lackawanna County 272, 570
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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.