Cobb County, Georgia ZIP Codes

19 ZIP Codes

Zip Code
City
Population
30127Powder Springs71,626
30101Acworth62,593
30062Marietta62,284
30066Marietta61,761
30144Kennesaw59,661
30080Smyrna53,316
30064Marietta52,125
30067Marietta47,271
30152Kennesaw44,977
30126Mableton41,829
30060Marietta38,499
30008Marietta35,547
30339Atlanta35,372
30068Marietta33,882
30082Smyrna27,296
30168Austell26,612
30106Austell23,107
30111Clarkdale0
30090Marietta0

Overview of ZIP Codes in Cobb County

ZCTAs are geographic areas created by the US Census Bureau to approximate the delivery areas of ZIP Codes for statistical analysis. While ZCTAs use the same five-digit codes as ZIP Codes, they represent defined geographic areas that may not exactly match the mail delivery routes of ZIP Codes.
19
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2025, there are 19 ZCTAs in Cobb County, Georgia (US Census).