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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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Winona County ZIP Codes

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

County State ZIP Code City Area Codes
Winona County MN 55910 Altura 507
Winona County MN 55925 Dakota 507, 608
Winona County MN 55942 Homer 507
Winona County MN 55952 Lewiston 507
Winona County MN 55959 Minnesota City 507, 608
Winona County MN 55969 Rollingstone 507
Winona County MN 55972 Saint Charles 507
Winona County MN 55979 Utica 507
Winona County MN 55987 Winona 507, 608
Winona County MN 55988 Stockton 507

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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.