The Northern Borders Region ( ) is the least populated region of Saudi Arabia. It is located in the north of the country, bordering Iraq and Jordan. It has an area of 111,797 km² and a population of 320,524 at the 2010 census (preliminary result). The region is sub-divided into three governorates: 'Ar'ar, Rafha and Turayf. Its capital is 'Ar'ar.