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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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Jefferson Davis Parish ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Jefferson Davis Parish.

County State ZIP Code City Area Codes
Jefferson Davis Parish LA 70532 Elton 337
Jefferson Davis Parish LA 70546 Jennings 337
Jefferson Davis Parish LA 70549 Lake Arthur 337
Jefferson Davis Parish LA 70581 Roanoke 337
Jefferson Davis Parish LA 70591 Welsh 337
Jefferson Davis Parish LA 70640 Fenton 337
Jefferson Davis Parish LA 70650 Lacassine 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.