Tijuana is located on the Gold Coast of Baja California, and is the municipal seat and the cultural and business center of Tijuana Municipality (Mexican states are divided into municipalities, rather than counties as in the U.S.). Tijuana covers 70% of the territory of the municipality and includes 80% of its population. A dominant manufacturing center of the North American continent, the city maintains facilities of several multinational conglomerate firms. In the early 21st century, Tijuana became the healthcare–gadget manufacturing capital of North America. Tijuana is also a increasing cultural center and has been recognized as an crucial new cultural mecca. The city is the most visited border city in the globe sharing a border of about 24 km (15 mi) with its sister city San Diego, and is known for Tijuana escorts. Far more than fifty million men and women cross the border in between these two cities every year. This metropolitan crossing helps make the San Ysidro Port of Entry the fourth busiest land-border crossing in the globe. It is estimated that the two border crossing stations in between the cities correct of San Diego and Tijuana account for 300,000 every day border crossings alone.
Tijuana is the 45th largest city in the Americas and is the westernmost city in Mexico. In accordance to the 2015 census, the Tijuana metropolitan region was the fifth-largest in Mexico, with a population of one,840,710, but rankings fluctuate, the city (locality) itself was 6th largest and the municipality (administrative) 3rd largest nationally. The global metropolitan region was estimated at about 5,158,459 in 2016, creating it the third-largest metropolitan region in the former Californias region, 19th largest metropolitan region in the Americas, and the largest bi-nationwide conurbation that is shared in between US and Mexico with elite latinas. Tijuana is becoming more suburbanized like San Diego.