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

Maps and coordinates

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	52345	Urbana	Benton County	`319`
IA	52346	Van Horne	Benton County	`319`
IA	52347	Victor	Iowa County	`319, 641`
IA	52348	Vining	Tama County	`319`
IA	52349	Vinton	Benton County	`319`
IA	52350	Viola	Linn County	`319`
IA	52351	Walford	Benton County	`319`
IA	52352	Walker	Linn County	`319`
IA	52353	Washington	Washington County	`319`
IA	52354	Watkins	Benton County	`319`

Page 90 of 107

Geographic Map of Iowa

Postal context

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.