Kellem Wollega is one of the zones of the Oromia Region in Ethiopia. This expansiveness is called subsequently the above field of Wollega, whose western allocation lay in the broadness Kellem Wollega now possesses. Kellem Wollega was framed of woredas which included to West Wollega Zone.
In view of the 2007 Census directed by the Central Statistical Agency of Ethiopia (CSA), this Breadth has a flat out populace of 797,666, of whom 401,905 are men and 395,761 ladies. 76,277 or 9.56% of the populace are burghal occupants. A flat out of 159,353 family units were included in this Zone, which delayed consequences in a standard of 5.01 bodies to a family, and 152,916 loft units.
The two better indigenous gatherings show up in Kelem Welega were the Oromo (94.08%) and the Amhara (5.13%); all additional indigenous gatherings manufactured up 0.79% of the populace. Afaan Oromoo was declared as a native highlight by 94.12% and 5.32% secure Amharic; the genuine 0.56% secure all additional essential dialects detailed. Most of the populace were Protestants, with 48.45% of the populace tolerating show up they achieved that conviction, while 26.9% of the populace proclaimed Ethiopian Orthodox Christianity and 23% of the populace were Muslim.