[1] Dutch records used the placenames Tamsuy and Tampsui to refer to Tamsui in the north of the island, but have also referred to this area in the south as "Tamsuy".

[2] In the early 20th century, maps showed two Tamsuy rivers, one north and one south; the Chinese would distinguish the two places by calling the north place Teng Tamsuy (upper Tamsui) and the south place E Tamsuy (lower Tamsui).

It has a population total of 49,253 and an area of 57.47 square kilometres (22.19 sq mi).

The township comprises 30 villages: Baocuo, Gantang, Guangan, Houcun, Jiaxing, Lunding, Shangcun, Shekou, Shepi, Sheshang, Shezhong, Shuiquan, Shuixian, Siwei, Tiancuo, Wanan, Wanhou, Wanhui, Wannei, Wanquan, Wansheng, Xiabei, Xianan, Xiangshe, Xingan, Xingquan, Xinzhong, Xinzhuang, Zhuanliao and Zhulin.

Brick manufacturing once flourished in the area due to the availability of clay and natural gas.