As of 2003, the district had an estimated population of 29,056 and a density of 113.58 persons per km2. The total area was 255.82 km2.
On February 28, 2005, Shōboku left Katsuta District and became part of the city of Tsuyama.
On March 31, 2005, Katsuta left Katsuta District and became part of the city of Mimasaka.[1][2]
References
^データでみる県勢: 日本国勢図会地域統計版 (in Japanese). 国勢社. 2006. p. 97. 2005 年 3 月 31 日に勝田町、大原町、東粟倉村、美作町、作東町、英田町が合併して誕生した。
^住民基本台帳人口移動報告年報 (in Japanese). 総務庁統計局. 2005. p. 147. Katsuta-cho, Ohara-cho, Higashiawakura-son, Mimasaka-cho, Sakuto-cho and Aida-cho were incorporated into a newly established Mimasaka-shi as of March 31, 2005.