Salé is a city in northwestern Morocco, on the right bank of the Bou Regreg river, opposite the national capital Rabat, for which it serves as a commuter town. Along with some smaller nearby towns, Rabat and Salé form together a single metropolitan area. Founded in the 11th century, it later became a haven for pirates in the 17th century as an independent republic before being incorporated into Alawi Morocco. It recorded a population of 890,403 in the 2014 Moroccan census.