ZIP Code 77643 is located in Port Arthur Texas. 77643 is entirely within Jefferson County. Regionally, it is located in the Beaumont-Port Arthur Area.
| ZIP Code Name | Port Arthur |
| Primary County | Jefferson County |
| ZIP Code Type | PO Box |
| Current Time | CDT |
| Coordinates | 29.86883926,-93.93374634 |
| Adjacent ZIP Codes | |
| Region | Beaumont-Port Arthur Area |
| Metropolitan/Micropolitan Stat Area | Beaumont-Port Arthur, TX |
| Time Zone | Central Daylight Time |
| IANA Timezone | America/Chicago |