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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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Clinton County ZIP Codes

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

County State ZIP Code City Area Codes
Clinton County MI 48820 Dewitt 517, 989
Clinton County MI 48822 Eagle 517
Clinton County MI 48831 Elsie 989
Clinton County MI 48833 Eureka 989
Clinton County MI 48835 Fowler 989
Clinton County MI 48853 Maple Rapids 989
Clinton County MI 48866 Ovid 517, 989
Clinton County MI 48879 Saint Johns 517, 989
Clinton County MI 48894 Westphalia 517, 989
Clinton County MO 64429 Cameron 660, 816
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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.