Based on figures published by the Central Statistical Agency in 2005, this woreda has an estimated total population of 131,160, of whom 67,184 were men and 63,976 were women; 1,364 or 1.04% of its population are urban dwellers, which is less than the Zone average of 8.5%. With an estimated area of 1,980.63 square kilometers, Loma Bosa has an estimated population density of 66.2 people per square kilometer, which is less than the Zone average of 156.5.[2]
The 1994 national census reported a total population for this woreda of 92,893 of whom 45,334 were males and 47,559 were females; 753 or 0.81% of its population were urban dwellers. The two largest ethnic groups reported in Loma Bosa were the Kullo (97.29%), and the Amhara (1.15%); all other ethnic groups made up 1.56% of the population. Kullo was the dominant first language spoken by 99.66% of the inhabitants; the remaining 0.34% spoke all other primary languages reported.[3] Concerning religious beliefs, the 1994 census reported that 43.03% of the population said they observed traditional religions, 29.39% practiced Ethiopian Orthodox Christianity, and 25.8% were Protestants.[3]