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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.

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Pettis County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Pettis County.

County State ZIP Code City Area Codes
Pettis County MO 65301 Sedalia 660
Pettis County MO 65302 Sedalia 660
Pettis County MO 65332 Green Ridge 660
Pettis County MO 65333 Houstonia 660
Pettis County MO 65334 Hughesville 660
Pettis County MO 65335 Ionia 660
Pettis County MO 65337 La Monte 660
Pettis County MO 65345 Mora 573, 660
Pettis County MO 65350 Smithton 660

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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.