Mergers from April 1, 1999 to Present

• On February 1, 2005 - The town of Mihara
  Mihara, Osaka
  was a town located in Minamikawachi District, Osaka Prefecture, Japan.As of 2003, the town had an estimated population of 38,956 and a density of 2,951.21 persons per km². The total area was 13.20 km²....
  
   merged into the city of Sakai
  Sakai, Osaka
  is a city in Osaka Prefecture, Japan. It has been one of the largest and most important seaports of Japan since the Medieval era.Following the February 2005 annexation of the town of Mihara, from Minamikawachi District, the city has grown further and is now the fourteenth most populous city in...
  
  . Since then Sakai has been split into wards of which Mihara-ku is one.