17 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 77642 | Port Arthur | 38,358 |
| 77705 | Beaumont | 38,259 |
| 77706 | Beaumont | 30,393 |
| 77627 | Nederland | 22,357 |
| 77707 | Beaumont | 18,323 |
| 77640 | Port Arthur | 17,167 |
| 77619 | Groves | 16,976 |
| 77713 | Beaumont | 15,541 |
| 77651 | Port Neches | 13,664 |
| 77701 | Beaumont | 12,381 |
| 77708 | Beaumont | 12,065 |
| 77703 | Beaumont | 11,004 |
| 77702 | Beaumont | 3,121 |
| 77622 | Hamshire | 1,818 |
| 77613 | China | 692 |
| 77629 | Nome | 435 |
| 77655 | Sabine Pass | 330 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 17 ZCTAs in Jefferson County, Texas (US Census).