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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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Hamilton County ZIP Codes

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

County State ZIP Code City Area Codes
Hamilton County NY 13353 Hoffmeister 315, 518, 680, 838
Hamilton County NY 13360 Inlet 315, 518, 680, 838
Hamilton County NY 13436 Raquette Lake 518, 838
Hamilton County OH 45001 Addyston 283, 513, 859
Hamilton County OH 45002 Cleves 283, 513
Hamilton County OH 45030 Harrison 283, 513, 812, 930
Hamilton County OH 45033 Hooven 283, 513
Hamilton County OH 45041 Miamitown 283, 513
Hamilton County OH 45051 Mount Saint Joseph 283, 513
Hamilton County OH 45052 North Bend 283, 513, 812, 859, 930
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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.