The township is located in the south-western part of the city with a total area of 27.48 square kilometres (10.61 sq mi).

The population was recorded to be 2643 people, 1438 males and 1205 females, and the number of houses totaled 1261.

[1] It was subordinated in Heungyang-hyeon (currently, Goheung-gun) and was called Samdo (Korean: 삼도; lit.

Dongdo-ri (Korean: 동도리) has two administrative districts: Yuchon, and Jukchon.

It controls Sonjukdo, Sogeomundo, Pyeongdo, and Gwangdo Chodo-ri (Korean: 초도리) has three administrative districts: Daedong, Uiseong, and Jinmak.