The island has a population of roughly 7,114 people and an area of 41.98 km². Administratively, the island today is divided into five
dong: Daebubuk-dong (), Daebunam-dong (), Daebudong-dong (), Seongam-dong () and Pungdo-dong (). The predominant industries are tourism and fishing. The island is connected (via Seongam-do and Tan-do) to the mainland in the south-east by road bridges, to Hyeong-do () (and thence the mainland) in the north-east by several routes due to land reclamation efforts, and to Seonjae-do () (and thence
Yeongheung Island () and others) to the west by a further road bridge.
Environment Due to rising mudflats, the island has merged with neighbouring Seongam-do () and Tan-do (). It is a
Ramsar site and has also been designated an
Important Bird Area (IBA) by
BirdLife International because its intertidal
mudflats support significant populations of breeding
Chinese egrets, as well as of
dunlins and
common greenshanks on passage. ==History==