The Riyadh area is a province of Saudi Arabia, also called Al-Wosta, located in the centre of the country. It has an area of 412,000 km² and a population of 5,455,363 (2004), making it the second largest province in terms of both area (behind the Eastern Province) and population (behind Makkah Province).
Its capital is the city of Riyadh, which is also the national capital. More than 75% of the population of the province resides within Riyadh. According to the 2004 census, 1,728,840 of the province's population is non-Saudi (approximately 31%), with 1,444,500 of those living within the provincial capital, Riyadh.