sentences:  The three largest ethnic groups reported in Gera were the Oromo (86.08%), the Amhara (8.27%), and the Kafficho (4.16%); all other ethnic groups made up 1.49% of the population.Oromiffa was spoken as a first language by 86.02%, 9.71% spoke Amharic, and 3.48% spoke Kafa; the remaining 1.52% spoke all other primary languages reported.The majority of the inhabitants were Muslim, with 87.22% of the population having reported they practiced that belief, while 11.15% of the population said they professed Ethiopian Orthodox Christianity, and 1.26% were Protestant.