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
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Mississippi ZIP Codes

Complete postal directory, details, and geographic map for the State of Mississippi.

State ZIP Code City County Area Codes
MS 39339 Louisville Winston County 601, 662, 769
MS 39341 Macon Noxubee County 205, 659, 662
MS 39342 Marion Lauderdale County 601, 769
MS 39345 Newton Newton County 601, 769
MS 39346 Noxapater Winston County 601, 662, 769
MS 39347 Pachuta Jasper County 601, 769
MS 39348 Paulding Jasper County 601, 769
MS 39350 Philadelphia Neshoba County 601, 662, 769
MS 39352 Porterville Kemper County 205, 601, 659, 662, 769
MS 39354 Preston Kemper County 601, 662, 769
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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.