at the time. The two largest ethnic groups reported in Ziway Dugda were the Oromo (94.84%), and the Amhara (1.43%); all other ethnic groups made up 3.73% of the population. Oromiffa was spoken as a first language by 94.35%, and 2.47% spoke Amharic; the remaining 3.18% spoke all other primary languages reported. The majority of the inhabitants were Muslim, with 89.56% of the population having reported they practiced that belief, while 10.17% of the population said they professed Ethiopian Orthodox Christianity. Notes Districts of Oromia Region