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U.S. ZIP Codes Database 2026

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Dekalb County ZIP Codes

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

County State ZIP Code City Area Codes
DeKalb County AL 35981 Ider 256, 938
DeKalb County AL 35984 Mentone 256, 706, 762, 938
DeKalb County AL 35986 Rainsville 256, 938
DeKalb County AL 35988 Sylvania 256, 938
DeKalb County AL 35989 Valley Head 256, 706, 762, 938
DeKalb County GA 30002 Avondale Estates 404, 470, 678, 943
DeKalb County GA 30021 Clarkston 404, 470, 678, 770, 943
DeKalb County GA 30030 Decatur 404, 470, 678, 943
Dekalb County GA 30031 Decatur 404
DeKalb County GA 30032 Decatur 404, 470, 678, 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.