한반도의 서남단 동중국해 북단에 위치하며, 2007년 7월 현재 면적은 12㎢이며, 인구는 2,592명이다.
It is located at the northern end of the East China Sea at the southwestern tip of the Korean peninsula, and as of July 2007, it has an area of 12㎢ and a population of 2,592 people.