| Locality | Postal Code |
|---|---|
| Auburn, Gwinnett | 30011 |
| Berkeley Lake, Gwinnett | 30071, 30092, 30096 |
| Bethlehem, Gwinnett | 30620 |
| Buford, Gwinnett | 30518, 30519 |
| Dacula, Gwinnett | 30019 |
| Duluth, Gwinnett | 30096, 30099 |
| Grayson, Gwinnett | 30017 |
| Hoschton, Gwinnett | 30548 |
| Johns Creek, Gwinnett | 30024 |
| Lawrenceville, Gwinnett | 30043, 30044, 30045, 30046 |
| Lilburn, Gwinnett | 30047 |
| Loganville, Gwinnett | 30052 |
| Norcross, Gwinnett | 30010, 30071, 30093 |
| Parkway, Gwinnett | 30092 |
| Peachtree Corners, Gwinnett | 30071, 30092, 30096, 30097 |
| Rest Haven, Gwinnett | 30518 |
| Rockbridge, Gwinnett | 30003 |
| Snellville, Gwinnett | 30039, 30078 |
| Sugar Hill, Gwinnett | 30518 |
| Suwanee, Gwinnett | 30024 |