Sanbu District is a district located in Chiba Prefecture, Japan. As of January 2013, the district had a population of 49,488 and a population density of 369 persons per km2. The total area is 134.1 square kilometres (51.8 mi2).
Towns and villages
• Kujūkuri • Shibayama • YokoshibahikariElevation of Ōamishirasato to city statusŌamishirasato, formerly a town in Sanbu District, was elevated to city status on January 1, 2013, and is no longer part of Sanbu District. ==History==
History
During the early Meiji period 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. The two districts were formally merged into the new Sanbu District on April 1, 1897. ==Mergers==