List of mergers in Osaka Prefecture

Here is a list of mergers in Osaka Prefecture, Japan since the Heisei era.

Mergers from April 1, 1999 to Present

On February 1, 2005 - The town of Mihara (from Minamikawachi District) was merged into the expanded city of Sakai. Since then, Sakai has been split into wards of which Mihara-ku is one.

Hashimoto's proposed division of the city of Osaka and Sakai along with 9 other cities in 20 special wards similar to Tokyo.