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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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Monroe County ZIP Codes

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

County State ZIP Code City Area Codes
Monroe County MI 48179 South Rockwood 734
Monroe County MI 48182 Temperance 419, 567, 734
Monroe County MI 49267 Ottawa Lake 419, 517, 567, 734
Monroe County MI 49270 Petersburg 517, 734
Monroe County MO 63456 Monroe City 573
Monroe County MO 65258 Holliday 660
Monroe County MO 65263 Madison 573, 660
Monroe County MO 65275 Paris 573, 660
Monroe County MO 65282 Santa Fe 573
Monroe County MO 65283 Stoutsville 573, 660
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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.