 According to the 2002 census of the National Statistics Institute, Perquenco spans an area of and has 6,450 inhabitants (3,281 men and 3,169 women).Of these, 2,929 (45.4%) lived in urban areas and 3,521 (54.6%) in rural areas.The population grew by 9.6% (564 persons) between the 1992 and 2002 censuses.