San Bernardo is a Chilean city and commune. It is the capital of the Maipo Province in the Santiago Metropolitan Region. It is the seat of the Roman Catholic Diocese of San Bernardo. According to the 2002 census of the National Statistics Institute, San Bernardo spans an area of 155.1 km2 (60 sq mi) and has 246,762 inhabitants (121,535 men and 125,227 women). Of these, 241,138 (97.7%) lived in urban areas and 5,624 (2.3%) in rural areas. The population grew by 29.3% (55,905 persons) between the 1992 and 2002 censuses.