NancaguaNancagua is a Chilean city and commune in Colchagua Province, O'Higgins Region.DemographicsAccording to the 2002 census conducted by the National [Statistics Institute (Chile)|National Statistics Institute], Nancagua spanned an area of and had 15,634 inhabitants. Of these, 9,264 lived in urban areas and 6,370 in rural areas. The population grew by 8.5% between the 1992 and 2002 censuses.AdministrationAs a commune, Nancagua is a third-level administrative division of Chile administered by a municipal council, headed by an alcalde who is directly elected every four years. The 2021-2024 alcalde is Mario Bustamante.