 With an estimated area of 1,248.75 square kilometers, Nono has an estimated population density of 103.4 people per square kilometer, which is less than the Zone average of 152.8.The 1994 national census reported a total population for this woreda of 93,291, of whom 46,435 were men and 46,856 women; 2,368 or 2.54% of its population were urban dwellers at the time.The two largest ethnic groups reported in Nono were the Oromo (83%), and the Amhara (16.26%); all other ethnic groups made up 0.74% of the population.