Tijuana is a city in Baja California, Mexico. It is part of the San Diego–Tijuana transborder urban agglomeration and the larger Southern California megalopolis. As the 2nd-largest city in Mexico and center of the 6th-largest metro area in Mexico, Tijuana exerts a strong influence in education and politics, in transportation, culture, art, and manufacturing and as a migration hub. Currently one of the fastest-growing metropolitan areas in Mexico, Tijuana is rated as a "High Sufficiency" global city by the Globalization and World Cities Research Network. As of September 2019, the city of Tijuana had a population of 1,810,645, with its metropolitan area containing a population of 2,157,853 as of 2020, an estimated 2,002,000 within the urban area.
Tijuana is located on the Pacific coast of Baja California, and is the municipal seat and the cultural and commercial center of Tijuana Municipality. Tijuana covers 70% of the territory of the municipality and contains 80% of its population. A dominant manufacturing center of the North American continent, the city maintains facilities of many multinational conglomerate companies.