16 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 30044 | Lawrenceville | 100,471 |
| 30043 | Lawrenceville | 89,046 |
| 30024 | Suwanee | 85,106 |
| 30096 | Duluth | 71,141 |
| 30047 | Lilburn | 70,592 |
| 30519 | Buford | 57,648 |
| 30518 | Buford | 56,309 |
| 30039 | Snellville | 51,742 |
| 30093 | Norcross | 49,015 |
| 30019 | Dacula | 47,887 |
| 30045 | Lawrenceville | 46,733 |
| 30078 | Snellville | 41,041 |
| 30046 | Lawrenceville | 39,524 |
| 30092 | Peachtree Corners | 36,660 |
| 30071 | Norcross | 26,140 |
| 30017 | Grayson | 24,213 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 16 ZCTAs in Gwinnett County, Georgia (US Census).