title: Ōsato District, Saitama
text: # Ōsato District, Saitama
  
  Ōsato (大里郡, Ōsato-gun) is a district located in Saitama Prefecture, Japan.
  
  As of 2003, the district has an estimated population of 130,305 and a population density of 629.34 persons per $km^2.$ The total area is 207.05 $km^2.$
  
  ## Towns
  
  * Yorii
  
  ## Mergers
  
  * On October 1, 2005, the towns of Ōsato and Menuma merged into the city of Kumagaya.
  * On January 1, 2006, the towns of Hanazono, Kawamoto and Okabe merged into the city of Fukaya.
  * On February 13, 2007, the town of Kōnan merged into the city of Kumagaya.
  
  36°07′12″N 139°11′38″E﻿ / ﻿36.1201°N 139.194°E﻿ / 36.1201; 139.194
  
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