According to the 2002 census of the National Statistics Institute, Osorno spans an area of and has 145,475 inhabitants (70,743 men and 74,732 women). Of these, 132,245 (90.9%) lived in urban areas and 13,230 (9.1%) in rural areas. The population grew by 13.9% (17,706 persons) between the 1992 and 2002 censuses.