Xikou's former name (Chinese: 雙溪口; Pe̍h-ōe-jī: Siang-khe-kháu; lit.

Han Chinese firstly settled around the area of Xikou Township since more than 200 years ago.

It is the smallest area of any city or township of Chiayi County.

The township land is generally well-watered and flat.

The township consists of 14 villages, which are Bencuo, Chailin, Deisi, Linjiao, Liougou, Meibei, Meinan, Miaolun, Pingding, Sibei, Sidong, Sisi, Youdong and Yousi.