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

Louisiana ZIP Codes

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

State ZIP Code City County Area Codes
LA 70729 Erwinville West Baton Rouge Parish 225
LA 70730 Ethel East Feliciana Parish 225
LA 70732 Fordoche Pointe Coupee Parish 225
LA 70733 French Settlement Livingston Parish 225
LA 70734 Geismar Ascension Parish 225
LA 70736 Glynn Pointe Coupee Parish 225
LA 70737 Gonzales Ascension Parish 225
LA 70738 Burnside Ascension Parish 225
LA 70739 Greenwell Springs East Baton Rouge Parish 225
LA 70740 Grosse Tete Iberville Parish 225
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Geographic Map of Louisiana

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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.