Tongyu is a county in the northwest of Jilin province, China, bordering Inner Mongolia to the south and west. It is the southernmost county-level division of the prefecture-level city of Baicheng, and has a population of 350,000 residing in an area of 8476 km2. The town of Tongyu can be considered to include the areas of Kaitong and Yangjing described below.

Administrative divisions

There are eight towns, eight townships, and two ethnic townships under the county's administration. Towns: Townships:

Climate