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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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Clinton County ZIP Codes

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

County State ZIP Code City Area Codes
Clinton County OH 45177 Wilmington 283, 326, 513, 937
Clinton County PA 16822 Beech Creek 272, 570, 582, 814
Clinton County PA 16848 Lamar 272, 570
Clinton County PA 17721 Avis 272, 570
Clinton County PA 17726 Castanea 570
Clinton County PA 17738 North Bend 570
Clinton County PA 17745 Lock Haven 272, 570, 582, 814
Clinton County PA 17747 Loganton 272, 570, 582, 814
Clinton County PA 17748 Mc Elhattan 272, 570
Clinton County PA 17750 Mackeyville 272, 570
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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.