The province spans an area of 4,588.9 km2 (1,772 sq mi), the largest in the Valparaíso Region. According to the 2002 census, Petorca is the second least populous province in the region under Isla de Pascua (Easter Island) with a population of 70,610. At that time, there were 50,289 people living in urban areas, 20,321 people living in rural areas, 35,647 men and 34,963 women.[1]