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.

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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 70571 Opelousas St. Landry Parish 337
LA 70575 Perry Vermilion Parish 337
LA 70576 Pine Prairie Evangeline Parish 337
LA 70577 Port Barre St. Landry Parish 337
LA 70578 Rayne Acadia Parish 337
LA 70580 Reddell Evangeline Parish 337
LA 70581 Roanoke Jefferson Davis Parish 337
LA 70582 Saint Martinville St. Martin Parish 337
LA 70583 Scott Lafayette Parish 337
LA 70584 Sunset St. Landry Parish 337
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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.