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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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Cobb County ZIP Codes

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

County State ZIP Code City Area Codes
Cobb County GA 30006 Marietta 678
Cobb County GA 30007 Marietta 678
Cobb County GA 30008 Marietta 470, 678, 770, 943
Cobb County GA 30060 Marietta 470, 678, 770, 943
Cobb County GA 30061 Marietta 678
Cobb County GA 30062 Marietta 470, 678, 770, 943
Cobb County GA 30063 Marietta 678
Cobb County GA 30064 Marietta 470, 678, 770, 943
Cobb County GA 30065 Marietta 678
Cobb County GA 30066 Marietta 470, 678, 770, 943
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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.