Buin is a city and commune of Chile, in the Maipo Province, Metropolitan Region of Santiago, which forms part of Greater Santiago. It is a city composed of the towns of Maipo, Viluco, Linderos, Valdivia de Paine, Alto Jahuel, Los Guindos and El Recurso. Buin is located about 35 km south of Santiago in the Maipo Valley wine region.
According to the 2002 census of the National Statistics Institute, Buin spans an area of 214.1 sqkm and has 63,419 inhabitants (31,440 men and 31,979 women). Of these, 53,506 (84.4%) lived in urban areas and 9,913 (15.6%) in rural areas. The population grew by 20.1% (10,627 persons) between the 1992 and 2002 censuses.
