Jiaozuo (Chinese: 焦作; pinyin: Jiāozuò [tɕjáʊ.tswô]; postal: Tsiaotso) is a prefecture-level city in the northwest of Henan province, China. Sitting on the northern bank of the Yellow River, it borders the provincial capital of Zhengzhou to the south, Xinxiang to the east, Jiyuan to the west, Luoyang to the southwest, and the province of Shanxi to the north. Jiaozuo is one of the core cities of the Central Plains urban agglomeration and a regional central city along the Shanxi–Henan border area.