17 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 77642 | Port Arthur | 38,720 |
| 77705 | Beaumont | 38,228 |
| 77706 | Beaumont | 29,693 |
| 77627 | Nederland | 22,180 |
| 77707 | Beaumont | 18,124 |
| 77619 | Groves | 17,110 |
| 77640 | Port Arthur | 16,896 |
| 77713 | Beaumont | 14,458 |
| 77651 | Port Neches | 13,635 |
| 77708 | Beaumont | 13,284 |
| 77701 | Beaumont | 12,955 |
| 77703 | Beaumont | 11,704 |
| 77702 | Beaumont | 3,234 |
| 77622 | Hamshire | 1,990 |
| 77613 | China | 855 |
| 77629 | Nome | 576 |
| 77655 | Sabine Pass | 294 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 17 ZCTAs in Jefferson County, Texas (US Census).