There are 17 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
77655294Sabine Pass

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