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
All states and U.S. territories
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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 18073 Pennsburg Montgomery County 215, 267, 445, 484, 610, 835
PA 18074 Perkiomenville Montgomery County 215, 267, 445, 484, 610, 835
PA 18076 Red Hill Montgomery County 215, 267, 445
PA 18077 Riegelsville Bucks County 484, 610, 835, 908
PA 18078 Schnecksville Lehigh County 484, 610, 835
PA 18079 Slatedale Lehigh County 484, 610, 835
PA 18080 Slatington Lehigh County 484, 610, 835
PA 18081 Springtown Bucks County 484, 610, 835
PA 18083 Stockertown Northampton County 484, 610, 835
PA 18084 Sumneytown Montgomery County 215
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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.