Information is lacking on the towns of this woreda.
Based on figures from the Central Statistical Agency in 2005, this woreda has an estimated total population of 12,230, of whom 6,341 were males and 5,889 were females.[1] With an estimated area of 1,308.44 square kilometers, Sirba Abbay has a population density of 9.3 people per square kilometer which is greater than the Zone average of 7.61.