16 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 30044 | Lawrenceville | 101,475 |
| 30024 | Suwanee | 88,067 |
| 30043 | Lawrenceville | 87,929 |
| 30096 | Duluth | 71,732 |
| 30047 | Lilburn | 70,121 |
| 30519 | Buford | 59,997 |
| 30518 | Buford | 57,912 |
| 30039 | Snellville | 52,783 |
| 30019 | Dacula | 51,162 |
| 30093 | Norcross | 46,410 |
| 30045 | Lawrenceville | 44,993 |
| 30046 | Lawrenceville | 41,850 |
| 30078 | Snellville | 41,597 |
| 30092 | Peachtree Corners | 36,992 |
| 30017 | Grayson | 26,620 |
| 30071 | Norcross | 25,830 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 16 ZCTAs in Gwinnett County, Georgia (US Census).