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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 IA 52037 Delmar 563
Clinton County IA 52254 Lost Nation 563
Clinton County IA 52701 Andover 563
Clinton County IA 52727 Bryant 563
Clinton County IA 52729 Calamus 563
Clinton County IA 52730 Camanche 309, 563
Clinton County IA 52731 Charlotte 563
Clinton County IA 52732 Clinton 309, 563, 779, 815
Clinton County IA 52733 Clinton 563
Clinton County IA 52734 Clinton 563
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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.