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 19139 Philadelphia Philadelphia County 215, 267, 445, 484, 610, 835
PA 19140 Philadelphia Philadelphia County 215, 267, 445
PA 19141 Philadelphia Philadelphia County 215, 267, 445
PA 19142 Philadelphia Philadelphia County 215, 267, 445, 484, 610, 835
PA 19143 Philadelphia Philadelphia County 215, 267, 445, 484, 610, 835
PA 19144 Philadelphia Philadelphia County 215, 267, 445
PA 19145 Philadelphia Philadelphia County 215, 267, 445
PA 19146 Philadelphia Philadelphia County 215, 267, 445
PA 19147 Philadelphia Philadelphia County 215, 267, 445
PA 19148 Philadelphia Philadelphia County 215, 267, 445, 856
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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.