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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Louisiana ZIP Codes

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

State ZIP Code City County Area Codes
LA 70392 Patterson St. Mary Parish 337, 985
LA 70393 Plattenville Assumption Parish 225, 985
LA 70394 Raceland Lafourche Parish 985
LA 70395 Schriever Terrebonne Parish 985
LA 70397 Theriot Terrebonne Parish 985
LA 70401 Hammond Tangipahoa Parish 225, 985
LA 70402 Hammond Tangipahoa Parish 985
LA 70403 Hammond Tangipahoa Parish 225, 985
LA 70404 Hammond Tangipahoa Parish 985
LA 70420 Abita Springs St. Tammany Parish 985
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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.