High Quality Content by WIKIPEDIA articles! Saha-gu is a gu in western Busan, South Korea. It has an area of 40.89 km², and a population of about 375,000. About a third of the area is forest land. Saha-gu became a gu of Busan in 1983. It is home to the Seunghak Campus of Dong-A University. South Korea is divided into 8 provinces (do), 1 special autonomous province (teukbyeol jachido), 6 metropolitan cities (gwangyeoksi), and 1 special city (teukbyeolsi).