 The largest ethnic group reported in Medebay Zena was the Tigrayan (99.89%), and Tigrinya was spoken as a first language by 99.93%.The majority of the inhabitants practiced Ethiopian Orthodox Christianity, with 97.82% reporting that as their religion, while 1.89% were Muslim.Concerning education, 10.15% of the population were considered literate, which is greater than the Zone average of 9.01%; 10.34% of the children aged 7–12 were in primary school, which is less than the Zone average of 11.34%; 0.31% of the children aged 13–14 were in junior secondary school, which is also less than the Zone average of 0.65%; and 0.08% of the children aged 15–18 were in senior secondary school, which is less than the Zone average of 0.51%.