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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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Madison County ZIP Codes

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

County State ZIP Code City Area Codes
Madison County NY 13409 Munnsville 315, 680
Madison County NY 13418 North Brookfield 315, 680
Madison County NY 13421 Oneida 315, 680
Madison County NY 13465 Solsville 315
Madison County NY 13484 West Eaton 315, 680
Madison County NY 13485 West Edmeston 315, 607, 680
Madison County OH 43029 Irwin 220, 326, 380, 614, 740, 937
Madison County OH 43140 London 220, 326, 380, 614, 740, 937
Madison County OH 43143 Mount Sterling 220, 380, 614, 740
Madison County OH 43151 Sedalia 220, 740
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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.