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 19523 Geigertown Berks County 484, 610, 835
PA 19525 Gilbertsville Montgomery County 484, 610, 835
PA 19526 Hamburg Berks County 272, 484, 570, 610, 835
PA 19529 Kempton Berks County 272, 484, 570, 610, 835
PA 19530 Kutztown Berks County 484, 610, 835
PA 19533 Leesport Berks County 484, 610, 835
PA 19534 Lenhartsville Berks County 484, 610, 835
PA 19535 Limekiln Berks County 484, 610, 835
PA 19536 Lyon Station Berks County 484, 610, 835
PA 19538 Maxatawny Berks 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.