Seto, OkayamaSeto was a town located in Akaiwa District, Okayama Prefecture, Japan.PopulationAs of 2003, the town had an estimated population of 14,794 and a density of 354.09 persons per km2. The total area was 41.78 km2.HistoryOn January 22, 2007, Seto, along with town of Takebe, was merged into the expanded city of Okayama.