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
County directory

Winn Parish ZIP Codes

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

County State ZIP Code City Area Codes
Winn Parish LA 71404 Atlanta 318
Winn Parish LA 71410 Calvin 318
Winn Parish LA 71422 Dodson 318
Winn Parish LA 71440 Joyce 318
Winn Parish LA 71471 Saint Maurice 318
Winn Parish LA 71473 Sikes 318
Winn Parish LA 71483 Winnfield 318

Geographic Map of Winn Parish

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.