Based on figures published by the Central Statistical Agency in 2005, this woreda has an estimated total population of 114,120, of whom 58,012 are men and 56,108 are women; 16,178 or 14.18% of its population are urban dwellers, which is greater than the Zone average of 10.9%. With an estimated area of 989.38 square kilometers, Ayra Guliso has an estimated population density of 115.3 people per square kilometer, which is greater than the Zone average of 91.7.[4]
The 1994 national census reported a total population for this woreda of 80,321 in 12,410 households, of whom 39,542 were men and 40,779 were women; 9,043 or 11.26% of its population were urban dwellers. The largest ethnic group reported in Ayra Guliso was the Oromo (97.95%). Oromiffa was spoken as a first language by 98.09%, and 1.69% spoke Amharic; the remaining 0.22% spoke all other primary languages reported. The majority of the inhabitants were Protestant, with 78.81% reporting that as their religion, while 16.07% were Ethiopian Orthodox Christianity, and 3.9% Muslim.[5]