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 17320 Fairfield Adams County 223, 227, 240, 301, 717
PA 17321 Fawn Grove York County 223, 410, 443, 667, 717
PA 17322 Felton York County 223, 717
PA 17323 Franklintown York County 223, 717
PA 17324 Gardners Cumberland County 223, 717
PA 17325 Gettysburg Adams County 223, 227, 240, 301, 410, 443, 667, 717
PA 17326 Gettysburg Adams County 717
PA 17327 Glen Rock York County 223, 410, 443, 667, 717
PA 17329 Glenville York County 223, 410, 443, 667, 717
PA 17331 Hanover York County 223, 410, 443, 667, 717
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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.