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	50319	Des Moines	Polk County	`515`
IA	50320	Des Moines	Polk County	`515`
IA	50321	Des Moines	Polk County	`515`
IA	50322	Urbandale	Polk County	`515`
IA	50323	Urbandale	Dallas County	`515`
IA	50324	Windsor Heights	Polk County	`515`
IA	50325	Clive	Polk County	`515`
IA	50327	Pleasant Hill	Polk County	`515`
IA	50328	Des Moines	Polk County	`515`
IA	50329	Des Moines	Polk County	`515`

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Geographic Map of Iowa

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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.