The U.S.-Mexico border city of Laredo is a six-letter word. It is located in the state of Texas and is the county seat of Webb County. El Paso is another six-letter word for a U.S.-Mexico border city. It is located in the state of Texas and is the county seat of El Paso County. Laredexas is a nine-letter word for a U.S.-Mexico border city. It is a portmanteau of the two cities, Laredo and El Paso, and is used to refer to the region that encompasses both cities.