Chibu is a village located on Chiburijima in the Dōzen group of islands in the Oki District, Shimane Prefecture, Japan. Chibu is the only village remaining in Shimane Prefecture as of October 1, 2005. As of Japan's 2010 census, the village has a population of 657 people, constituting 326 households, and a population density of about 48 persons per km². T…Chibu is a village located on Chiburijima in the Dōzen group of islands in the Oki District, Shimane Prefecture, Japan. Chibu is the only village remaining in Shimane Prefecture as of October 1, 2005. As of Japan's 2010 census, the village has a population of 657 people, constituting 326 households, and a population density of about 48 persons per km². This is a decrease of 68 people from the previous census conducted in 2005. A population estimate from March 2011 placed Chibu's population at 656 people, 334 men and 322 women.