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
Maps and coordinates
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 70665 Sulphur Calcasieu Parish 337
LA 70668 Vinton Calcasieu Parish 337, 409
LA 70669 Westlake Calcasieu Parish 337
LA 70704 Baker East Baton Rouge Parish 225
LA 70706 Denham Springs Livingston Parish 225
LA 70707 Gonzales Ascension Parish 225
LA 70710 Addis West Baton Rouge Parish 225
LA 70711 Albany Livingston Parish 225, 985
LA 70712 Angola West Feliciana Parish 225, 601, 769
LA 70714 Baker East Baton Rouge Parish 225
Page 34 of 73

Geographic Map of Louisiana

Postal context

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.