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U.S. ZIP Codes Database 2026

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Pottawattamie County ZIP Codes

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

County State ZIP Code City Area Codes
Pottawattamie County IA 51501 Council Bluffs 402, 531, 712
Pottawattamie County IA 51502 Council Bluffs 712
Pottawattamie County IA 51503 Council Bluffs 402, 531, 712
Pottawattamie County IA 51510 Carter Lake 402, 531, 712
Pottawattamie County IA 51521 Avoca 712
Pottawattamie County IA 51525 Carson 712
Pottawattamie County IA 51526 Crescent 402, 531, 712
Pottawattamie County IA 51536 Hancock 712
Pottawattamie County IA 51542 Honey Creek 712
Pottawattamie County IA 51548 Mc Clelland 712
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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.