29 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 30058 | Lithonia | 63,421 |
| 30083 | Stone Mountain | 62,941 |
| 30319 | Atlanta | 45,382 |
| 30294 | Ellenwood | 43,076 |
| 30032 | Decatur | 42,812 |
| 30038 | Lithonia | 42,744 |
| 30034 | Decatur | 41,823 |
| 30338 | Atlanta | 39,042 |
| 30084 | Tucker | 38,715 |
| 30087 | Stone Mountain | 37,570 |
| 30316 | Atlanta | 35,040 |
| 30341 | Atlanta | 34,812 |
| 30030 | Decatur | 31,712 |
| 30033 | Decatur | 31,530 |
| 30340 | Atlanta | 30,646 |
| 30088 | Stone Mountain | 29,279 |
| 30329 | Atlanta | 27,022 |
| 30021 | Clarkston | 26,386 |
| 30345 | Atlanta | 24,576 |
| 30035 | Decatur | 22,073 |
| 30307 | Atlanta | 21,680 |
| 30360 | Atlanta | 16,428 |
| 30317 | Atlanta | 14,798 |
| 30288 | Conley | 7,352 |
| 30002 | Avondale Estates | 5,507 |
| 30346 | Atlanta | 4,935 |
| 30079 | Scottdale | 4,850 |
| 30322 | Atlanta | 2,422 |
| 30072 | Pine Lake | 853 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 29 ZCTAs in DeKalb County, Georgia (US Census).