総人口：2,943People (2014 September 30)。Area 142.99 km²。
Town on Okushiri Island。
Hakodate City → 40 minutes by plane。
Esashi → 2 hours and 15 minutes by ferry
Setana-cho → 1 hour and 35 minutes by ferry
The place name is derived from the Ainu word "Ikushun Siri (the island over there)".。
There are many natural rocks such as "Nabe fishing rock" and "Mottate rock"。