The five largest ethnic groups reported in Badawacho were the Hadiya (82.15%), the Kambaata (5.45%), the Alaba (4.71%), the Welayta (3.77%), and the Oromo (2.05%); all other ethnic groups made up 1.87% of the population.
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Hadiya was spoken as a first language by 78.79%, 9.33% Kambaata, 4.92% spoke Alaba, 4.45% Welayta, and 1.79% spoke Amharic; the remaining 0.72% spoke all other primary languages reported.