List of mergers in Kagawa Prefecture

Kagawa Prefecture mergers
Country	Japan
Prefecture	Kagawa

The following lists municipal mergers in Kagawa Prefecture, Japan that have occurred since the Heisei era, along with dissolved districts where applicable.

Mergers from April 1, 1999 to Present

• 1 April 2002 – The towns of Ōkawa, Nagao, Sangawa, Shido, and Tsuda (all from western Ōkawa District) merged to form the city of Sanuki . ^[1]
• 1 April 2003 – The towns of Hiketa, Ohchi, and Shirotori (all from eastern Ōkawa District) merged to create the city of Higashikagawa . Ōkawa District was dissolved. ^[2]
• 22 March 2005 – The towns of Ayauta and Hanzan (both from Ayauta District) merged into the expanded city of Marugame . ^[3]
• 26 September 2005 – The town of Shionoe (from Kagawa District) merged into the expanded city of Takamatsu . ^[4]
• 11 October 2005 – The towns of Ōnohara and Toyohama (both from Mitoyo District) merged to create the city of Kan'onji . ^[5]
• 1 January 2006 – The towns of Mino, Nio, Saita, Takase, Takuma, Toyonaka, and Yamamoto (all from Mitoyo District) merged to form the city of Mitoyo . Mitoyo District was dissolved. ^[6]
• 10 January 2006 – The towns of Aji and Mure (from Kita District), Kagawa and Kōnan (from Kagawa District), and Kokubunji (from Ayauta District) merged into the expanded city of Takamatsu . ^[7]
• 20 March 2006 – The towns of Chūnan and Kotonami (from Nakatado District) merged into the expanded town of Mannō . ^[8]
• 21 March 2006 – The towns of Ikeda and Uchinomi (from Shōzu District) merged to form the town of Shōdoshima . ^[9]
• 21 March 2006 – The towns of Ayakami and Ryōnan (from Ayauta District) merged to form the town of Ayagawa . ^[10]

Planned/Future Mergers

No official future mergers have been announced as of 2025. ^[11]

See also

• Municipal mergers in Japan
• Heisei mergers
• Kagawa Prefecture

References

1. "Sanuki City History" . Retrieved 20 October 2025.
2. "Higashikagawa City Mergers" . Retrieved 20 October 2025.
3. "Marugame City Municipal Mergers" . Retrieved 20 October 2025.
4. "Takamatsu City Mergers" . Retrieved 20 October 2025.
5. "Kan'onji City Mergers" . Retrieved 20 October 2025.
6. "Mitoyo City Mergers" . Retrieved 20 October 2025.
7. "Takamatsu City Merger Archive" . Retrieved 20 October 2025.
8. "Mannō Town Mergers" . Retrieved 20 October 2025.
9. "Shōzu District Mergers" . Retrieved 20 October 2025.
10. "Ayauta District Mergers" . Retrieved 20 October 2025.
11. "Kagawa Prefecture Municipal Information" . Retrieved 20 October 2025.