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, municipa ...

located in Okayama Prefecture, Japan. As of 2003, the district has an estimated

population Population typically refers to the number of people in a single area, whether it be a city or town, region, country, continent, or the world. Governments typically quantify the size of the resident population within their jurisdiction using a ...

of 31,845 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 79.65 persons per km². The total area is 399.83 km².

Towns and villages

Aida District consists of the following village: *

Nishiawakura is a village located in Aida District, Okayama Prefecture, Japan. As of October 2016, the village has an estimated population of 1,437 and a density Density (volumetric mass density or specific mass) is the substance's mass per unit of vo ...

History

Prior to March 31, 2005, Aida District included *

Aida ''Aida'' (or ''Aïda'', ) is an opera in four acts by Giuseppe Verdi to an Italian libretto by Antonio Ghislanzoni. Set in the Old Kingdom of Egypt, it was commissioned by Cairo's Khedivial Opera House and had its première there on 24 Decemb ...

* Higashiawakura * Mimasaka *

* Ōhara * Sakutō On that date, all but Nishiawakura merged to form the new city of Mimasaka. Districts in Okayama Prefecture Articles lacking sources from June 2009 All articles lacking sources {{Okayama-geo-stub