Hejaz
Historically, the Hejaz has always seen itself as separate from the rest of Saudi Arabia. The Hejaz is the most populated region in Saudi Arabia; 35% of all Saudis live there. Hejazi Arabic is the most widely spoken dialect in the region. Saudi Hejazis are of ethnically diverse origins.
Demographics of the Arab League
Nubians, found in Northern Sudan and Southern Egypt, are a different ethnicity from their northern and southern neighbors in Egypt and Sudan, numbering 1.7 million in Sudan and Egypt. The Nubian people in Sudan inhabit the region between Wadi Halfa in the north and Aldaba in the south. The main Nubian groups from north to south are the Halfaweyen, Sikut (Sickkout), Mahas, and Danagla. They speak different dialects of the Nubian language.