was 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 counties, several municipalities, subdivisions o ...

located in

Okayama Prefecture is a Prefectures of Japan, prefecture of Japan located in the Chūgoku region of Honshu. Okayama Prefecture has a population of 1,906,464 (1 February 2018) and has a geographic area of 7,114 Square kilometre, km2 (2,746 sq mi). Okayama Prefectur ...

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

. As of 2003, the district had an estimated population of 13,546 and a

density Density (volumetric mass density or specific mass) is the substance's mass per unit of volume. The symbol most often used for density is ''ρ'' (the lower case Greek letter rho), although the Latin letter ''D'' can also be used. Mathematical ...

of 30.70 persons per km². The total area was 441.28 km².

Towns and villages

* Ōsa * Shingō * Tessei * Tetta

Merger

* On March 31, 2005 - the towns of Ōsa, Shingō, Tessei and Tetta were merged into the expanded city of

Niimi is a city located in northwestern Okayama Prefecture, Japan. As of March 31, 2017, the city has an estimated population of 30,583 (14,628 males, 15,955 females), with 12,857 households and a population density of 39 persons per km2. The total a ...

. Therefore, Atetsu District was dissolved as a result of this merger. Former districts of Okayama Prefecture {{Okayama-geo-stub