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 63626 Blackwell Washington County 573, 636
MO 63627 Bloomsdale Ste. Genevieve County 573, 618, 636
MO 63628 Bonne Terre St. Francois County 573, 636
MO 63629 Bunker Reynolds County 417, 573
MO 63630 Cadet Washington County 573, 636
MO 63631 Caledonia Washington County 573
MO 63632 Cascade Wayne County 573
MO 63633 Centerville Reynolds County 573
MO 63636 Des Arc Iron County 573
MO 63637 Doe Run St. Francois 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.