Paillaco 'is a city and commune in southern Chile. It is located in Valdivia province of Rivers Region, and is about 48 km southeast of Valdivia. when I the Rivers Region, is understood to be in Paillaco Ranco Province, but the inhabitants of Paillaco and Mayor (English: Mayor) and strongly opposed Paillaco had argued that much stronger links with Valdivia the Union the capital of Ranco province. The final project of the creation of Los Ríos Region was then changed to include Paillaco in the province of Valdivia.
According to the 2002 census of the National Statistics Institute, Paillaco spans an area of 896 km2 (346 sq mi) and has 19,237 inhabitants (9,620 men and 9,617 women). Of these, 9,973 (51.8%) lived in urban areas and 9,264 (48.2%) in rural areas. The population grew by 6% (1,085 persons) between the 1992 and 2002 censuses.