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

Missouri ZIP Codes

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

State ZIP Code City County Area Codes
MO 64421 Amazonia Andrew County 660, 785, 816
MO 64422 Amity DeKalb County 816
MO 64423 Barnard Nodaway County 660, 816
MO 64424 Bethany Harrison County 660
MO 64426 Blythedale Harrison County 641, 660
MO 64427 Bolckow Andrew County 660, 816
MO 64428 Burlington Junction Nodaway County 660
MO 64429 Cameron Clinton County 660, 816
MO 64430 Clarksdale DeKalb County 816
MO 64431 Clearmont Nodaway County 660, 712
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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.