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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Iowa ZIP Codes

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

State ZIP Code City County Area Codes
IA 52760 Moscow Muscatine County 319, 563
IA 52761 Muscatine Muscatine County 309, 319, 563
IA 52765 New Liberty Scott County 563
IA 52766 Nichols Muscatine County 319, 563
IA 52767 Pleasant Valley Scott County 309, 563
IA 52768 Princeton Scott County 309, 563
IA 52769 Stockton Muscatine County 563
IA 52771 Teeds Grove Clinton County 563
IA 52772 Tipton Cedar County 319, 563
IA 52773 Walcott Scott 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.