Santo Domingo is a Chilean coastal city and commune in San Antonio Province, Valparaíso Region.

It was founded as Rocas de Santo Domingo (St. Dominic's Rocks).

According to the 2002 census of the National Statistics Institute, Santo Domingo spans an area of 536.1 km2 (207 sq mi) and has 7,418 inhabitants (3,811 men and 3,607 women).

[2] As a commune, Santo Domingo is a third-level administrative division of Chile administered by a municipal council, headed by an alcalde who is directly elected every four years.

[1] Within the electoral divisions of Chile, Santo Domingo is represented in the Chamber of Deputies by María José Hoffmann (UDI) and Víctor Torres (PDC) as part of the 15th electoral district, (together with San Antonio, Cartagena, El Tabo, El Quisco, Algarrobo and Casablanca).