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 18972 Upper Black Eddy Bucks County 484, 610, 835, 908
PA 18974 Warminster Bucks County 215, 267, 445
PA 18976 Warrington Bucks County 215, 267, 445
PA 18977 Washington Crossing Bucks County 215, 267, 445, 609, 640
PA 18979 Woxall Montgomery County 484, 610, 835
PA 18980 Wycombe Bucks County 215, 267, 445
PA 18981 Zionhill Bucks County 215
PA 18991 Warminster Bucks County 215
PA 19001 Abington Montgomery County 215, 267, 445
PA 19002 Ambler Montgomery County 215, 267, 445
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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.