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.

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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 19003 Ardmore Montgomery County 484, 610, 835
PA 19004 Bala Cynwyd Montgomery County 215, 267, 445, 484, 610, 835
PA 19006 Huntingdon Valley Montgomery County 215, 267, 445
PA 19007 Bristol Bucks County 215, 267, 445, 609, 640
PA 19008 Broomall Delaware County 484, 610, 835
PA 19009 Bryn Athyn Montgomery County 215, 267, 445
PA 19010 Bryn Mawr Delaware County 484, 610, 835
PA 19012 Cheltenham Montgomery County 215, 267, 445
PA 19013 Chester Delaware County 484, 610, 835, 856
PA 19014 Aston Delaware 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.