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 70644 Grant Allen Parish 318, 337
LA 70645 Hackberry Cameron Parish 337
LA 70646 Hayes Calcasieu Parish 337
LA 70647 Iowa Calcasieu Parish 337
LA 70648 Kinder Allen Parish 318, 337
LA 70650 Lacassine Jefferson Davis Parish 337
LA 70651 Leblanc Allen Parish 337
LA 70652 Longville Beauregard Parish 337
LA 70653 Merryville Beauregard Parish 337, 409
LA 70654 Mittie Allen Parish 318, 337
Page 32 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.