 The two largest ethnic groups reported in Doba were the Oromo (88.88%), and the Amhara (11.02%); all other ethnic groups made up 0.1% of the population.Oromiffa was spoken as a first language by 89.83%, and 10.14% spoke Amharic; the remaining 0.03% spoke all other primary languages reported.The majority of the inhabitants were Muslim, with 86.14% of the population reporting they practiced that belief, while 12.63% of the population said they professed Ethiopian Orthodox Christianity, and 1.09% were Catholic.