Based on the 2007 Census conducted by the
Central Statistical Agency of Ethiopia (CSA), this woreda has a total population of 8,001, of whom 4,568 are men and 3,433 women; with an area of 7,762.43 square kilometers, Dimma has a population density of 1.03, which is less than the Zone average of 4.83 persons per square kilometer. Reportedly 2,103 or 26.28% are urban inhabitants. A total of 2,435 households were counted in this woreda, which results in an average of 3.3 persons to a household, and 2,203 housing units. The majority of the inhabitants said they were
Protestant, with 35.55% of the population reporting they observed this belief, while 33.73% of the population practised
Ethiopian Orthodox Christianity, 17.52% were
Muslim, and 7.61% practiced traditional religions. == Notes ==