According to data from the 2002 Census of Population and Housing, Pencahue had 8,315 inhabitants; of these, 2,037 (24.5%) lived in
urban areas and 6,278 (75.5%) in
rural areas. At that time, there were 4,517 men and 3,798 women. The population grew 5.9% (461 persons) between the 1992 and 2002 censuses. ==Administration==