According to national estimations based on Census data which include irregular migrants, more than 350 000 immigrants were living in Chile in 2009, twice the number of immigrants registered in 2002. The vast majority of the immigrants in Chile are from other Southern American countries, mainly from the neighbouring countries. Peru is the main country of origin, accounting for 37% of the migrant population, followed by Argentina (17%), Bolivia (7%), Ecuador (5%) and Colombia (4%).