Located in the Riyadh province of Saudi Arabia, it has an administrative center located south to the province of Dawadmi at about 99 km. Its area covers 84 km in width including its surrounding areas. It was founded by Sheikh Sultan Bin Mohammed Bin Hindi Bin Humaid and Sheikh Jahjah bin Bajad bin Humaid Al Otaibi in 1918. The chieftains of the settlement were Hashar bin Mugid bin Humaid, and Nayef bin Jahjah bin Humaid. The Al Mugata clan settled here, with a few other clans of Otaibah. Its governor in the 21st century is Sheikh Jahjah bin Nayef bin Humaid. Arwa is an ancient place known since the Jahiliyyah, and it overlooks a large mountain called Arwan.