29 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 30083 | Stone Mountain | 62,724 |
| 30058 | Lithonia | 62,614 |
| 30319 | Atlanta | 45,985 |
| 30038 | Lithonia | 43,776 |
| 30032 | Decatur | 42,948 |
| 30294 | Ellenwood | 41,983 |
| 30034 | Decatur | 41,847 |
| 30338 | Atlanta | 39,465 |
| 30087 | Stone Mountain | 38,977 |
| 30084 | Tucker | 38,242 |
| 30341 | Atlanta | 36,021 |
| 30316 | Atlanta | 35,107 |
| 30030 | Decatur | 31,756 |
| 30033 | Decatur | 31,310 |
| 30340 | Atlanta | 30,062 |
| 30088 | Stone Mountain | 29,240 |
| 30021 | Clarkston | 27,781 |
| 30329 | Atlanta | 27,278 |
| 30345 | Atlanta | 24,492 |
| 30307 | Atlanta | 21,709 |
| 30035 | Decatur | 21,569 |
| 30360 | Atlanta | 16,855 |
| 30317 | Atlanta | 15,622 |
| 30288 | Conley | 8,116 |
| 30002 | Avondale Estates | 5,225 |
| 30079 | Scottdale | 4,831 |
| 30346 | Atlanta | 4,411 |
| 30322 | Atlanta | 2,521 |
| 30072 | Pine Lake | 800 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 29 ZCTAs in DeKalb County, Georgia (US Census).