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
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State directory

Mississippi ZIP Codes

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

State ZIP Code City County Area Codes
MS 39120 Natchez Adams County 318, 601, 769
MS 39121 Natchez Adams County 601
MS 39122 Natchez Adams County 601
MS 39130 Madison Madison County 601
MS 39140 Newhebron Lawrence County 601, 769
MS 39144 Pattison Claiborne County 601, 769
MS 39145 Pelahatchie Rankin County 601, 769
MS 39146 Pickens Holmes County 601, 662, 769
MS 39148 Piney Woods Rankin County 601, 769
MS 39149 Pinola Simpson County 601, 769
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Geographic Map of Mississippi

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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.