In which state is the city of Houston located?

In which state is the city of Memphis located? In which state is the city of Knoxville located? In which state is the city of Chattanooga located? In which state is the city of Gatlinburg located? In which state is the city of San Antonio located? In which state is the city of Dallas located? In which state is the city of Fort Worth located? In which state is the city of El Paso located?