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U.S. ZIP Codes Database 2026

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Catahoula Parish ZIP Codes

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

County State ZIP Code City Area Codes
Catahoula Parish LA 71340 Harrisonburg 318
Catahoula Parish LA 71343 Jonesville 318
Catahoula Parish LA 71363 Rhinehart 318
Catahoula Parish LA 71368 Sicily Island 318
Catahoula Parish LA 71401 Aimwell 318
Catahoula Parish LA 71425 Enterprise 318

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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.