Saga County is under Shigatse City of Tibet Autonomous Region, located in the south of Tibet Autonomous Region, in the middle of Shigatse City and on the south bank of the Yarlung Zangbo River. It borders Shigatse City and Bailang County in the east, Dingjie and Gamba counties in the south, Lazi and Dingri in the west, and Xetongmen across the river in the north. The county seat is 150 km from Shigatse City. The total area is 8,126 square kilometers. According to the 7th Census data, as of 0:00 on November 1, 2020, the permanent population of Sakya County was 48,766.

Sakya County is located between the Himalayas and the Gangdisis Mountains, the terrain is high in the north and south, low in the middle. The highest peak in the territory is 6,092 meters above sea level. There are Chongqu River, Xiabuqu River and other rivers. Plateau temperate semi-arid monsoon climate. Frost-free period about 110 days, average annual temperature 5-6 ℃, annual precipitation about 150-300 mm. Saga County is a semi-agricultural and semi-pastoral county. China-nepal highway transit. Within the territory of Sakya Temple, Bai Matulin, Chaopu, Juba, Kangjian, Renchingang Temple and other temples of various denominations.

In 2020, the GDP of Sakya County reached 1.303 billion yuan, an increase of 8% year on year.
On December 9, 2019, the People's Government of Tibet Autonomous Region approved the withdrawal of Sakya County from the poverty-stricken county (district).