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 64491 Tarkio Atchison County 660
MO 64492 Trimble Clinton County 816
MO 64493 Turney Clinton County 816
MO 64494 Union Star DeKalb County 660, 816
MO 64496 Watson Atchison County 402, 531, 660
MO 64497 Weatherby DeKalb County 660, 816
MO 64498 Westboro Atchison County 660, 712
MO 64499 Worth Worth County 660
MO 64501 Saint Joseph Buchanan County 785, 816, 913
MO 64502 Saint Joseph Buchanan County 816
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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.