Tijuana is positioned on the Gold Coast of Baja California, and is the municipal seat and the cultural and industrial 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 is made up of 80% of its population. A dominant manufacturing center of the North American continent, the city maintains amenities of several multinational conglomerate businesses. In the early 21st century, Tijuana became the health caregadget manufacturing capital of North America. Tijuana is also a growing cultural center and has been acknowledged as an critical 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 identified for Tijuana escorts. More than fifty million folks cross the border among these two cities each and every year. This metropolitan crossing can make the San Ysidro Port of Entry the fourth busiest land-border crossing in the world. It is estimated that the two border crossing stations among the cities appropriate of San Diego and Tijuana account for 300,000 every day border crossings alone.

Tijuana is the 45th greatest city in the Americas and is the westernmost city in Mexico. In accordance to the 2015 census, the Tijuana metropolitan area was the fifth-greatest in Mexico, with a population of 1,840,710, but rankings differ, the city (locality) itself was 6th greatest and the municipality (administrative) 3rd greatest nationally. The global metropolitan area was estimated at about five,158,459 in 2016, making it the third-greatest metropolitan area in the former Californias area, 19th greatest metropolitan area in the Americas, and the greatest bi-nationwide conurbation that is shared among US and Mexico with elite latinas. Tijuana is turning out to be far more suburbanized like San Diego.