Tijuana is the largest city on the Baja California Peninsula and center of the Tijuana metropolitan area, part of the international San Diego–Tijuana metropolitan area. An industrial and financial center of Mexico, Tijuana exerts a strong influence on 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 cities in Mexico, Tijuana maintains global city status.
On the Gold Coast of Baja California, Tijuana is the municipal seat, cultural, and commercial center of Tijuana Municipality. A dominant manufacturing center of the North American continent, the city maintains facilities of numerous multinational conglomerate companies. The 2000's saw Tijuana become the medical device manufacturing capital of North America. Also a growing cultural center, Tijuana has been recognized as one of most important new cultural meccas. The city is the most visited border city in the globe; sharing an approximate 24-kilometre-long border (15 mi) with its sister city San Diego, over fifty million people annually cross the border between these two cities. This metropolitan crossing makes the San Ysidro Port of Entry the busiest land-border crossing in the world. It is estimated that the two border crossing stations between the cities proper of San Diego and Tijuana account for 300,000 daily border crossings alone.
Tijuana is the 42nd largest city in the Americas and is the westernmost city in Mexico. According to the 2010 census, the Tijuana metropolitan area was the fifth-largest in Mexico, with a population of 1,784,034. The international metropolitan region was estimated to be just over five million in 2009 and approximately 5,105,769 in 2010, making it the third largest metropolitan area in the Californias, 19th largest metropolitan area in the Americas, and the largest