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

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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	50167	Minburn	Dallas County	`515`
IA	50168	Mingo	Jasper County	`515, 641`
IA	50169	Mitchellville	Polk County	`515`
IA	50170	Monroe	Jasper County	`515, 641`
IA	50171	Montezuma	Poweshiek County	`641`
IA	50173	Montour	Tama County	`641`
IA	50174	Murray	Clarke County	`641`
IA	50201	Nevada	Story County	`515, 641`
IA	50206	New Providence	Hardin County	`641`
IA	50207	New Sharon	Mahaska County	`641`

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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.