Zamtang is located at 100 ° 31 '- 101 ° 29' E and 31 ° 29 '- 32 ° 41' N in the east of the Qinghai-Tibet Plateau, at the upstream of the Dadu River, in the west of Aba Tibetan and Qiang Autonomous Prefecture in Sichuan Province. The county borders Malkang City and Aba County in the east and northeast, Jinchuan County in the south, Seda County, Luhuo County and Daofu County in Ganzi Prefecture in the west and south, and Bama County in Qinghai Province in the north. The county seat is 3285 meters above sea level. It covers an area of 6863 square kilometers. According to the data of the seventh population census, as of 0:00 on November 1, 2020, the permanent population of Zamtang County was 44679.

Zamtang County was established in 1958, and its name comes from a natural village in the territory. The stronghold is located on a mountain, which looks like the "Tibetan Bodhisattva" holding a treasure house. The Tibetan and Chinese Dictionary records that "Zhanballa, the meaning of translation is amazing. The Sanskrit is translated into Yan Bora. The old translation is Bulu Vajra, the name of the god of wealth". The Dictionary of Tibetan and Han Dynasties records again: "building, treasure building, and victory building. An ornament or sacred offering on the ridge of the palace that symbolizes victory."

"Ran", a transliteration of Tibetan, originates from Shangyi. In Tibetan, Pingbazi is called "pond". "Zamtang" gets its name from this, meaning "the dam of the god of wealth". This is also the basis for the formation of the name "Zamtang".

On September 25, 2018, it was awarded the honorary title of "2018 Comprehensive Demonstration County of E-commerce in Rural Areas" by the Ministry of Commerce.

On February 18, 2020, the poor counties will be withdrawn.

In 2020, Zamtang County will achieve a gross regional product of 132089 million yuan.