Oku District, Okayama

Oku was a district located in Okayama Prefecture, Japan.
As of 2003, the district had an estimated population of 39,365 and a density of 313.64 persons per km². The total area was 125.51 km².

Towns and villages

Merger

On November 1, 2004 - the towns of Oku, Osafune and Ushimado were merged to create the city of Setouchi.