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
City
Population
77642Port Arthur38,720
77705Beaumont38,228
77706Beaumont29,693
77627Nederland22,180
77707Beaumont18,124
77619Groves17,110
77640Port Arthur16,896
77713Beaumont14,458
77651Port Neches13,635
77708Beaumont13,284
77701Beaumont12,955
77703Beaumont11,704
77702Beaumont3,234
77622Hamshire1,990
77613China855
77629Nome576
77655Sabine Pass294

Jefferson County, Texas Zip Codes by Population (2024)