Raya Azebo is one of the 36 woredas in the Tigray Region of Ethiopia. It is named in part after the and who with the Yejju Oromo are the northernmost groups of the Oromo people. These peoples had settled in the area by the 17th century. Located in the Debubawi Zone at the eastern edge of the Ethiopian highlands, Debubawi Zone, Raya Azebo is bordered on the south by Alamata, on the southwest by Ofla, on the northwest by Endamehoni, on the north by Hintalo Wajirat, and on the east by the Afar Region. The administrative center of this woreda is Mersa; other towns in Raya Azebo include Weyra Wuha.
The zonal water, mining and energy department announced 15 August 2009 that 84 of the 100 wells planned in Raya Azebo and Alamata woredas have been completed at a cost of 40 million Birr. These wells would assist in irrigating over 3,000 hectares of land and benefit over 13,000 farmers.
Based on the 2007 national census conducted by the Central Statistical Agency of Ethiopia (CSA), this woreda has a total population of 135,870, an increase of 55.04% over the 1994 census, of whom 67,687 are men and 68,183 women; 16,056 or 11.82% are urban inhabitants. With an area of 2,132.83 square kilometers, Raya Azebo has a population density of 63.70, which is greater than the Zone average of 53.91 persons per square kilometer. A total of 32,360 households were counted in this woreda, resulting in an average of 4.20 persons to a household, and 31,468 housing units.
The 1994 national census reported a total population for this woreda of 87,638 of whom 43,259 were men and 44,379 were women; 8,047 or 9.18% of its population were urban dwellers. The four largest ethnic groups reported in Raya Azebo were the Tigrayan (87.21%), the Amhara (9.77%), the Afar (1.55%), and the Oromo (1.4%); all other ethnic groups made up 0.07% of the population. Tigrinya was spoken as a first language by 85.52%, 11.04% Amharic, 1.83% Oromo, and 1.53% spoke Afar; the remaining 0.08% spoke all other primary languages reported. 69.15% of the population practiced Ethiopian Orthodox Christianity, and 30.82% were Muslim. Concerning education, 8.44% of the population were considered literate, which is less than the Zone average of 15.71%; 14.64% of children aged 7-12 were in primary school; 0.9% of the children aged 13-14 were in junior secondary school; and 0.31% of the inhabitants aged 15-18 were in senior secondary school. Concerning sanitary conditions, 56.9% of the urban houses and 13.4% of all houses had access to safe drinking water at the time of the census; 20.6% of the urban and about 4.7% of the total had toilet facilities.