29 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 30058 | Lithonia | 63,647 |
| 30083 | Stone Mountain | 60,937 |
| 30319 | Atlanta | 45,025 |
| 30032 | Decatur | 44,682 |
| 30034 | Decatur | 42,607 |
| 30294 | Ellenwood | 42,594 |
| 30038 | Lithonia | 41,633 |
| 30084 | Tucker | 39,256 |
| 30338 | Atlanta | 39,098 |
| 30087 | Stone Mountain | 38,858 |
| 30316 | Atlanta | 33,773 |
| 30341 | Atlanta | 32,582 |
| 30030 | Decatur | 31,984 |
| 30033 | Decatur | 30,971 |
| 30340 | Atlanta | 30,945 |
| 30088 | Stone Mountain | 30,286 |
| 30021 | Clarkston | 26,684 |
| 30329 | Atlanta | 25,986 |
| 30345 | Atlanta | 24,437 |
| 30035 | Decatur | 23,119 |
| 30307 | Atlanta | 21,266 |
| 30360 | Atlanta | 15,644 |
| 30317 | Atlanta | 15,110 |
| 30288 | Conley | 7,738 |
| 30002 | Avondale Estates | 5,856 |
| 30079 | Scottdale | 4,592 |
| 30346 | Atlanta | 4,574 |
| 30322 | Atlanta | 2,387 |
| 30072 | Pine Lake | 779 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 29 ZCTAs in DeKalb County, Georgia (US Census).