El Puerto de Santa María, locally known as El Puerto and historically in English as Port Saint Mary, is a municipality of Spain located on the banks of the Guadalete River in the province of Cádiz, Andalusia. As of 2016, the city has a population of c. 88,184, of which some 50,000 live in the urban center, and the remainder in the surrounding areas. The town of El Puerto de Santa María is located 10 km northeast of Cádiz, across the bay of Cádiz.