| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Acworth, Cobb | 30101 |
| Postal/ZIP Codes in Atlanta, Cobb | 30339 |
| Postal/ZIP Codes in Austell, Cobb | 30106, 30168 |
| Postal/ZIP Codes in Barrett Parkway, Cobb | 30144 |
| Postal/ZIP Codes in Clarkdale, Cobb | 30111 |
| Postal/ZIP Codes in Cumberland, Cobb | 30339 |
| Postal/ZIP Codes in Kennesaw, Cobb | 30144, 30152 |
| Postal/ZIP Codes in Mableton, Cobb | 30126 |
| Postal/ZIP Codes in Marietta, Cobb | 30008, 30060, 30062, 30064, 30066, … |
| Postal/ZIP Codes in Oak Grove, Cobb | 30101 |
| Postal/ZIP Codes in Overlook Sru, Cobb | 30339 |
| Postal/ZIP Codes in Powder Springs, Cobb | 30127 |
| Postal/ZIP Codes in Sandy Springs, Cobb | 30339 |
| Postal/ZIP Codes in Smyrna, Cobb | 30080, 30081, 30082 |
| Postal/ZIP Codes in Vinnings, Cobb | 30339 |