this county belongs to Jilin province.

According to today's headline data, Tongyu County belongs to Baicheng City, located in the west of Jilin Province and the south of Baicheng City, and located in the eastern border of Horqin Grassland, with an area of 8,476 square kilometers. Tongyu County has a semi-arid continental monsoon climate in the middle temperate zone, with four distinct seasons: spring, summer, autumn and winter.

By May 8, 2123, Tongyu had jurisdiction over 1 provincial-level economic development zones, 8 towns, 8 townships, 6 state-owned animal husbandry (forestry) farms and 172 administrative villages. Tongyu County had a permanent population of 281,589 people, including Miao and Korean ethnic minorities, with a flat and open terrain, slightly higher in the northwest and slightly lower in the southeast. The Beijing-Qi Railway runs through the north and south, Changbai and Changbai.