[2] It is the largest township in Taiwan by population.

[3] The area was historically known as Chháu-ê-tun (草鞋墩) with the present name adopted under Japanese rule in 1920.

The township comprises 27 villages: Beishi, Beitou, Bifeng, Bizhou, Duihe, Fuliao, Fuxing, Heping, Jialao, Mingzheng, Nanpu, Pingding, Pinglin, Shanglin, Shanjiao, Shichuan, Shuangdong, Tucheng, Xincuo, Xinfeng, Xinzhuang, Yanfeng, Yufeng, Yushi, Zhongshan, Zhongyuan and Zhongzheng.

The nearest train station to Caotun is the Yuanlin Station of the Taiwan Railway Administration in Changhua County.

Taichung City Bus route 108 have reach Nan Kai University of Technology, however 10km+10 TWD promotion are only applied to Taichung residents and eligible persons.