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U.S. ZIP Codes Database 2026

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Ouachita Parish ZIP Codes

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

County State ZIP Code City Area Codes
Ouachita Parish LA 71217 Monroe 318
Ouachita Parish LA 71225 Calhoun 318
Ouachita Parish LA 71238 Eros 318
Ouachita Parish LA 71240 Fairbanks 318
Ouachita Parish LA 71280 Sterlington 318
Ouachita Parish LA 71281 Swartz 318
Ouachita Parish LA 71291 West Monroe 318
Ouachita Parish LA 71292 West Monroe 318
Ouachita Parish LA 71294 West Monroe 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.