High points in this woreda include Mount Fota. Rivers include the Berga, the main tributary of the upper Awash River. The vegetation of the Berga flood-plain, a part of the vast plains on the Central plateau of Shewa, includes grasses, sedges and other plants peculiar to the area, which include species from the genera Haplocarpha, Ranunculus, Cyperus, and Pennisetum and Andropogon. Although coffee is an important cash crop of this woreda, less than 20 square kilometers are planted with this crop. The Adda Berga woreda Education Office announced18 March 2009 that construction of a secondary and five primary schools had begun that January. The construction budget of 9 million Birr was provided by Muger Cement Enterprise and World Vision Ethiopia. Completion of these buildings, scheduled for 2010, would allow 5,000 students to be enrolled, and provide each of 36 kebeles in Adda Berga with a primary school.
Demographics
The 2007 national census reported a total population for this woreda of 120,654, of whom 60,366 were men and 60,288 were women; 15,940 or 13.21% of its population were urban dwellers. The majority of the inhabitants said they practised Ethiopian Orthodox Christianity, with 88.54% of the population reporting they observed this belief, while 5.7% of the population practiced traditional beliefs, and 5.29% were Protestant. Based on figures published by the Central Statistical Agency in 2005, this woreda has an estimated total population of 129,889, of whom 65,871 are men and 64,018 are women; 14,284 or 11.00% of its population are urban dwellers, which is less than the Zone average of 12.3%. With an estimated area of 955 square kilometers, Adda Berga has an estimated population density of 136 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 92,137, of whom 45,599 were men and 46,538 women; 7,999 or 8.68% of its population were urban dwellers at the time. The two largest ethnic groups reported in Adda Berga were the Oromo, and the Amhara ; all other ethnic groups made up 0.66% of the population. Oromiffa was spoken as a first language by 95.5%, while 4.16% spoke Amharic; the remaining 0.34% spoke all other primary languages reported. The majority of the inhabitants professed Ethiopian Orthodox Christianity, with 98.93% of the population reporting they practiced that belief.
