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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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Saginaw County ZIP Codes

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

County State ZIP Code City Area Codes
Saginaw County MI 48722 Bridgeport 989
Saginaw County MI 48724 Carrollton 989
Saginaw County MI 48734 Frankenmuth 989
Saginaw County MI 48787 Frankenmuth 989
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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.