The two largest ethnic groups reported in Alaje were the Tigrayan (98.18%), and the Agaw Kamyr (1.4%); all other ethnic groups made up 0.42% of the population.
Alaje's demographics show that the Tigrayans make up the majority (98.18%) and the Agaw Kamyr are the second largest group (1.4%). The remaining ethnicities represent a small fraction of the population, at 0.42%.