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

Missouri ZIP Codes

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

State ZIP Code City County Area Codes
MO 63565 Unionville Putnam County 641, 660
MO 63566 Winigan Sullivan County 660
MO 63567 Worthington Putnam County 660
MO 63601 Park Hills St. Francois County 573
MO 63620 Annapolis Iron County 573
MO 63621 Arcadia Iron County 573
MO 63622 Belgrade Washington County 573
MO 63623 Belleview Iron County 573
MO 63624 Bismarck St. Francois County 573
MO 63625 Black Reynolds County 573
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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.