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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.

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Forrest County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Forrest County.

County State ZIP Code City Area Codes
Forrest County MS 39401 Hattiesburg 601, 769
Forrest County MS 39403 Hattiesburg 601
Forrest County MS 39404 Hattiesburg 601
Forrest County MS 39406 Hattiesburg 601, 769
Forrest County MS 39407 Hattiesburg 601
Forrest County MS 39425 Brooklyn 601, 769
Forrest County MS 39465 Petal 601, 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.