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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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Iron County ZIP Codes

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

County State ZIP Code City Area Codes
Iron County MI 49902 Alpha 906
Iron County MI 49903 Amasa 906
Iron County MI 49915 Caspian 906
Iron County MI 49920 Crystal Falls 534, 715, 906
Iron County MI 49927 Gaastra 534, 715, 906
Iron County MI 49935 Iron River 534, 715, 906
Iron County MI 49964 Stambaugh 906
Iron County MO 63620 Annapolis 573
Iron County MO 63621 Arcadia 573
Iron County MO 63623 Belleview 573
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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.