There are 18 zip codes in Jefferson County, Texas. The most populated is 77642, located in Port Arthur. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
7764238,720Port Arthur
7770538,228Beaumont
7770629,693Beaumont
7762722,180Nederland
7770718,124Beaumont
7761917,110Groves
7764016,896Port Arthur
7771314,458Beaumont
7765113,635Port Neches
7770813,284Beaumont
7770112,955Beaumont
7770311,704Beaumont
777023,234Beaumont
776221,990Hamshire
77613855China
77629576Nome
77615339Evadale
77655294Sabine Pass
showing: 18 rows

Zip Codes in Jefferson County, Texas by Population (2024)