U.S. postal lookup

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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Iowa County ZIP Codes

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

County State ZIP Code City Area Codes
Iowa County IA 52307 Middle Amana 319
Iowa County IA 52308 Millersburg 319
Iowa County IA 52316 North English 319
Iowa County IA 52325 Parnell 319
Iowa County IA 52334 South Amana 319
Iowa County IA 52347 Victor 319, 641
Iowa County IA 52361 Williamsburg 319
Kiowa County KS 67054 Greensburg 620
Kiowa County KS 67059 Haviland 620
Kiowa County KS 67109 Mullinville 620
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Geographic Map of Iowa County

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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.