Tonghua (Chinese: 通化; pinyin: Tōnghuà) is an industrial city in the south of Jilin province, People's Republic of China. It borders North Korea to the south and southeast, Baishan to the east, Jilin City to the north, Liaoyuan to the northwest, and Liaoning province to the west and southwest. Administratively, it is a prefecture-level city with a total population of 2,325,242 living in an area of 15,195 square kilometres (5,867 sq mi). Urban population is 506,877. It is known as one of the five medicine production centres in China.