Tongoy is a Chilean coastal town in the commune of Coquimbo in Elqui Province, Coquimbo Region. It is located 42 km (26 mi) to the south of Chile's second oldest city, La Serena, next to Guanaqueros beach, on a rocky promontory opposite the Pacific Ocean, between the beaches of Socos (4 km) and Grande (26 km), to the north of the Talinay Mountain range.
Tongoy's geographical coordinates are 30°15′27″S 71°29′33″W / 30.25750°S 71.49250°WCoordinates: 30°15′27″S 71°29′33″W / 30.25750°S 71.49250°W and, according to a 2002 census conducted by the National Statistics Institute, has a population of 4,435 inhabitants. Tongoy's residential areas are divided into two areas: the Peninsula, a zone of summer houses, called popularly "La Isla" ("The Island") and the Pueblo Bajo (Low Village), where the majority of permanent inhabitants reside.