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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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Miami County ZIP Codes

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

County State ZIP Code City Area Codes
Miami County KS 66026 Fontana 913
Miami County KS 66036 Hillsdale 913
Miami County KS 66053 Louisburg 816, 913
Miami County KS 66064 Osawatomie 785, 913
Miami County KS 66071 Paola 785, 913
Miami County OH 45312 Casstown 326, 937
Miami County OH 45317 Conover 326, 937
Miami County OH 45318 Covington 326, 937
Miami County OH 45326 Fletcher 326, 937
Miami County OH 45337 Laura 326, 937
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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.