Yumin County is subordinate to Tacheng District of Xinjiang Uygur Autonomous Region, and is located at the southern edge of Thar Basin and the western edge of Junggar Basin in the northwest of Xinjiang Uygur Autonomous Region. It is located between 82 ° 12 '- 83 ° 30' east longitude and 45 ° 24 '- 46 ° 3' north latitude. The border line is 146.5 kilometers long. The town of Harabula, where the county seat is located, is 425 kilometers away from Urumqi. The county has a maximum width of 65 kilometers from east to west and a maximum length of 120 kilometers from north to south. It has jurisdiction over 2 towns and 4 townships. The administrative area is 6220 square kilometers. By the end of 2019, the registered residence population of Yumin County was 51595.

It is composed of 19 ethnic groups, including Han, Kazak, Hui, Uygur, Mongolian, etc., of which the Han nationality accounts for 55%, the Kazak nationality accounts for 35%, and other minorities account for 10%. Farmers and herdsmen account for 63% of the population.

The main scenic spots in Yumin County include Kurusi Prairie, Horimud Lake, Turjialiao Hill Grassland, Akcho Lake Grassland, etc.

In 2019, Yumin County's GDP was 1803.57 million yuan, the added value of the primary industry was 657.76 million yuan, the added value of the secondary industry was 2009.7 million yuan, the general public budget revenue was 129.3 million yuan, and the general public budget expenditure was 1208.32 million yuan.