Mexicali is the capital city of the Mexican state of Baja California. It serves as the seat of the Mexicali Municipality and functions as a significant regional economic and cultural hub for the border region of The Californias.
The city abuts the Mexico–United States border, situated directly adjacent to the U.S. city of Calexico, California. According to the 2010 census, Mexicali has a population of 689,775, while the combined Calexico–Mexicali metropolitan area is home to approximately 1,000,000 residents.