As of 2011, 97% of the population adhered to Islam<ref>https://web.archive.org/web/20120605132439/http://www.sd.undp.org/sudan%20overview.htm</ref> "While the population of Sudan predominately descends from both indigenous African groups and Arabs, today most tribes in the country speak Arabic and the Arab culture predominates. Over 97% of the population of Sudan are Sunni Muslims with a very small Christian minority." | As of 2011, 97% of the population adhered to Islam<ref>https://web.archive.org/web/20120605132439/http://www.sd.undp.org/sudan%20overview.htm</ref> "While the population of Sudan predominately descends from both indigenous African groups and Arabs, today most tribes in the country speak Arabic and the Arab culture predominates. Over 97% of the population of Sudan are Sunni Muslims with a very small Christian minority." |