is a

district A district is a type of administrative division that in some countries is managed by the local government. Across the world, areas known as "districts" vary greatly in size, spanning regions or county, counties, several municipality, municip ...

located in

Chiba Prefecture is a Prefectures of Japan, prefecture of Japan located in the Kantō region of Honshu. Chiba Prefecture has a population of 6,278,060 (1 June 2019) and has a geographic area of . Chiba Prefecture borders Ibaraki Prefecture to the north, Saitama ...

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

. As of January 2013, the district had a

population Population is a set of humans or other organisms in a given region or area. Governments conduct a census to quantify the resident population size within a given jurisdiction. The term is also applied to non-human animals, microorganisms, and pl ...

of 49,488 and a

population density Population density (in agriculture: Standing stock (disambiguation), standing stock or plant density) is a measurement of population per unit land area. It is mostly applied to humans, but sometimes to other living organisms too. It is a key geog ...

of 369 persons per km². The total area is .

Towns and villages

* Kujūkuri * Shibayama * Yokoshibahikari

Elevation of Ōamishirasato to city status

Ōamishirasato, formerly a town in Sanbu District, was elevated to city status on January 1, 2013, and is no longer part of Sanbu District.

History

During the early

Meiji period The was an era of Japanese history that extended from October 23, 1868, to July 30, 1912. The Meiji era was the first half of the Empire of Japan, when the Japanese people moved from being an isolated feudal society at risk of colonizatio ...

establishment of the municipality system on April 1, 1889, the districts of with 3 towns and 14 villages, and with 1 towns and 14 villages were created in what was formerly the north-eastern portion of

Kazusa Province was a province of Japan in the area of modern Chiba Prefecture. The province was located in the middle of the Bōsō Peninsula, whose name takes its first ''kanji'' from the name of Awa Province and its second from Kazusa and Shimōsa province ...

. The two districts were formally merged into the new Sanbu District on April 1, 1897.

Mergers

*On March 27, 2006, the towns of Sanbu,

Naruto ''Naruto'' is a Japanese manga series written and illustrated by Masashi Kishimoto. It tells the story of Naruto Uzumaki, a young ninja who seeks recognition from his peers and dreams of becoming the Hokage, the leader of his village. T ...

, Hasunuma and Matsuo merged to form the new city of Sanmu. *On March 27, 2006, the town of Yokoshiba merged with Hikari from Sōsa District to form the new town of Yokoshibahikari in Sanbu District.

References

Districts in Chiba Prefecture {{Chiba-geo-stub