Sabine Lake is a bay on the Gulf coasts of Texas and Louisiana, located approximately 90 miles east of Houston and 160 miles west of Baton Rouge, adjoining the city of Port Arthur. The lake is formed by the confluence of the Neches and Sabine Rivers and connects to the Gulf of Mexico through Sabine Pass. It forms part of the Texas–Louisiana bo…Sabine Lake is a bay on the Gulf coasts of Texas and Louisiana, located approximately 90 miles east of Houston and 160 miles west of Baton Rouge, adjoining the city of Port Arthur. The lake is formed by the confluence of the Neches and Sabine Rivers and connects to the Gulf of Mexico through Sabine Pass. It forms part of the Texas–Louisiana border, falling within Jefferson and Orange Counties in Texas and Cameron Parish, Louisiana.