Escuinapa de Hidalgo is a city in Escuinapa Municipality of the same name, located at the extreme southern end of the Mexican state of Sinaloa. At the census of 2005 the city had a population of 28,789 inhabitants (the sixth-largest community in the state), while the municipality reported 49,655 inhabitants. The municipality has an area of 1633.22 km² (630.58 sq mi) and includes the towns of Isla del Bosque and Teacapan, in addition to many smaller localities.