The five largest ethnic groups reported in Wenago were the Gedeo (73.5%), the Amhara (6.98%), the Oromo (6.37%), the Sidama (3.34%), and the Silte (2.33%); all other ethnic groups made up 7.48% of the population.
In Wenago, the five most populous ethnic groups were the Gedeo (73.5%), Amhara (6.98%), Oromo (6.37%), Sidama (3.34%), and Silte (2.33%). The remaining ethnic groups made up 7.48% of the population.