Step 1 : Introduction to the question " _____ is the westernmost city in Mexico. "
...Tijuana is the largest city in the Mexican state of Baja California and on the Baja California Peninsula, located at the center of the Tijuana and the international San Diego–Tijuana metropolitan areas. As one of the largest and fastest growing cities of Mexico, Tijuana exerts a strong influence on local economics, education, culture, art, and politics. As the city has become a leading center in the country, so has the surrounding metropolitan area, a major industrial and paramount metropolis in northwestern Mexico. Currently one of the fastest growing metropolitan areas in Mexico, Tijuana maintains global city status. As of 2015, the city of Tijuana had a population of 1,641,570.
