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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State directory

Pennsylvania ZIP Codes

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

State ZIP Code City County Area Codes
PA 17562 Paradise Lancaster County 223, 484, 610, 717, 835
PA 17563 Peach Bottom Lancaster County 223, 410, 443, 484, 610, 667, 717, 835
PA 17564 Penryn Lancaster County 717
PA 17565 Pequea Lancaster County 223, 717
PA 17566 Quarryville Lancaster County 223, 484, 610, 717, 835
PA 17567 Reamstown Lancaster County 717
PA 17568 Refton Lancaster County 223, 717
PA 17569 Reinholds Lancaster County 223, 484, 610, 717, 835
PA 17570 Rheems Lancaster County 223, 717
PA 17572 Ronks Lancaster County 223, 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.