The 2007 national census reported a total population for this woreda of 74,376, of whom 37,284 were men and 37,092 were women; 5,061 or 6.81% of its population were urban dwellers. The majority of the inhabitants said they practised
Ethiopian Orthodox Christianity, with 98.91% of the population reporting they practised that belief. Based on figures published by the
Central Statistical Agency in 2005, this woreda has an estimated total population of 82,565, of whom 41,003 are men and 41,562 are women; 4,502 or 5.45% of its population are urban dwellers, which is less than as the Zone average of 9.5%. With an estimated area of 627.82 square kilometers, Abichu(Aanaa) has an estimated
population density of 131.5 people per square kilometer, which is less than the Zone average of 143. The 1994 national census reported a total population for this woreda of 59,340, of whom 29,631 were men and 29,709 women; 2,522 or 4.25% of its population were urban dwellers at the time. The two largest ethnic groups reported in Abichu(Aanaa) were the
Oromo (69.99%), and the
Amhara (29.69%); all other ethnic groups made up 0.32% of the population.
Oromo was spoken as a first language by 70.07%, and 29.84% spoke
Amharic; the remaining 0.09% spoke all other primary languages reported. The majority of the inhabitants professed
Ethiopian Orthodox Christianity, with 99.09% of the population reporting they practiced that belief. == Notes ==