| Jefferson County Texas Cities/Towns - Beaumont (County Seat), Bevil Oaks, China, Groves, Nederland, Nome, Port Arthur, Port Neches, Sabine Pass |
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![]() Your Ad Here Jefferson County is a county located in the state of Texas, United States. As of 2000, the population was 252,051. Its county seat is Beaumont. History It is named for the former U.S. president, Thomas Jefferson. ![]() |