| Zip Code | City | Population ↓ |
|---|---|---|
| 30016 | Covington | 59,179 |
| 30014 | Covington | 40,892 |
| 30054 | Oxford | 12,234 |
| 30055 | Mansfield | 3,551 |
| 30070 | Porterdale | 37 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 5 ZCTAs in Newton County, Georgia (US Census).