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.

42,735 verified records

All states and U.S. territories

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State directory

Iowa ZIP Codes

Complete postal directory, details, and geographic map for the State of Iowa.

State	ZIP Code	City	County	Area Codes
IA	52654	Wayland	Henry County	`319`
IA	52655	West Burlington	Des Moines County	`319`
IA	52656	West Point	Lee County	`319`
IA	52657	Saint Paul	Lee County	`319`
IA	52658	Wever	Lee County	`217, 319, 447`
IA	52659	Winfield	Henry County	`319`
IA	52660	Yarmouth	Des Moines County	`319`
IA	52701	Andover	Clinton County	`563`
IA	52720	Atalissa	Muscatine County	`319, 563`
IA	52721	Bennett	Cedar County	`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.