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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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Lehigh County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Lehigh County.

County State ZIP Code City Area Codes
Lehigh County PA 18066 New Tripoli 272, 484, 570, 610, 835
Lehigh County PA 18068 Old Zionsville 484
Lehigh County PA 18069 Orefield 484, 610, 835
Lehigh County PA 18078 Schnecksville 484, 610, 835
Lehigh County PA 18079 Slatedale 484, 610, 835
Lehigh County PA 18080 Slatington 484, 610, 835
Lehigh County PA 18087 Trexlertown 484, 610, 835
Lehigh County PA 18092 Zionsville 215, 267, 445, 484, 610, 835
Lehigh County PA 18098 Emmaus 484
Lehigh County PA 18099 Emmaus 484
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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.