The 2010 Ethiopian Census showed the Orthodox population to be 31.7 % Protestant 14.7 % , and Islam 49.9 % .
According to the Ethiopian Central Statistical Agency ( 2007 census ) , the national religious composition is Ethiopian Orthodox 43.5 % , Protestantism 18.6 % , Roman Catholicism 0.7 % , Islam 33.9 % , traditional 2.6 % , and others 0.6 % .
Demographics of Ethiopia