Gedeb is one of the districts in the Southern Nations. Part of the Gedeo Zone, Gdeb is bordered on the east and south by the Oromia Region, on the west by Kochere, on the northwest by Yirgacheffe, and on the north by Bule.
Between the driest and wettest months, the difference in precipitation is 231mm. The variation in annual temperature is around 2.3 degrees Celsius.
Coffee was introduced into Ethiopia in the 1970s and Yirgacheffe was the location of the very first processing mill.