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 18020 Bethlehem Northampton County 484, 610, 835
PA 18025 Bethlehem Northampton County 484
PA 18030 Bowmanstown Carbon County 484, 610, 835
PA 18031 Breinigsville Lehigh County 484, 610, 835
PA 18032 Catasauqua Lehigh County 484, 610, 835
PA 18034 Center Valley Lehigh County 484, 610, 835
PA 18035 Cherryville Northampton County 484, 610, 835
PA 18036 Coopersburg Lehigh County 215, 267, 445, 484, 610, 835
PA 18037 Coplay Lehigh County 484, 610, 835
PA 18038 Danielsville Northampton County 484, 610, 835
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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.