Dera (Oromo: Deeraa) is a woreda in Oromia Region, Ethiopia.
Part of the Kaba Shewa Zone, Dera is bordered on the south by the Jamma River which separates it from Hidabu Abote and Wara Jarso, on the west, north and east by the Amhara Region; the Abay River defines the western boundary, and its tributary the Walaqa River the northern.
The woreda government announced March 2008 the completion of infrastructure improvements, which consisted of 77 kilometers of new road and an additional 366 kilometers renovated at the cost of 2.6 million Birr.
[2] Based on figures published by the Central Statistical Agency in 2005, this woreda has an estimated total population of 193,214, of whom 99,085 are men and 94,129 are women; 5,719 or 2.96% of its population are urban dwellers, which is less than the Zone average of 9.5%.
Dera is almost evenly divided between the two largest ethnic groups reported in this woreda: the Oromo (50.18%), and the Amhara (49.76%).