Here is a list of mergers in Tochigi Prefecture , Japan since the Heisei era.
Mergers from April 1, 1999 to Present
On January 1, 2005 - the city of Kuroiso was merged with the towns of Nishinasuno and Shiobara (both from Nasu District ) to create the city of Nasushiobara .
On February 28, 2005 - the old city of Sano absorbed the towns of Kuzu and Tanuma (both from Aso District ) to create the new and expanded city of Sano . Aso District was dissolved as a result of this merger.
On March 28, 2005 - the towns of Kitsuregawa and Ujiie (both from Shioya District ) were merged to create the city of Sakura .
On October 1, 2005 - the towns of Batō and Ogawa (both from Nasu District ) were merged to create the town of Nakagawa .
On October 1, 2005 - the towns of Minaminasu and Karasuyama (from Nasu District ) were merged to create the city of Nasukarasuyama .
On October 1, 2005 - the town of Kurobane , and the village of Yuzukami (both from Nasu District ) were merged into the expanded city of Ōtawara .
On January 1, 2006 - the town of Awano (from Kamitsuga District ) was merged into the expanded city of Kanuma .
On January 10, 2006 - the town of Minamikawachi (from Kawachi District ), and the towns of Ishibashi and Kokubunji (both from Shimotsuga District ) were merged to create the city of Shimotsuke . (Merger Information Page)
On March 20, 2006 - the old city of Nikkō absorbed the city of Imaichi , the town of Ashio (from Kamitsuga District ), the town of Fujihara , and the village of Kuriyama (both from Shioya District ) to create the new and expanded city of Nikkō . With this merger, there are no more villages left in Tochigi Prefecture.
On March 31, 2007 - the towns of Kamikawachi and Kawachi (both from Kawachi District ) were merged into the expanded city of Utsunomiya .
On March 23, 2009 - the town of Ninomiya (from Haga District ) was merged into the expanded city of Mooka .[ 1]
On March 29, 2010 - the old city of Tochigi absorbed the towns of Fujioka , Ōhira and Tsuga (all from Shimotsuga District ) to create the new and expanded city of Tochigi .
On October 1, 2011 - the town of Nishikata (from Kamitsuga District ) was merged into the expanded city of Tochigi . Kamitsuga District was dissolved as a result of this merger.
On April 5, 2014 - The town of Iwafune (from Shimotsuga District ) was merged into the expanded city of Tochigi .
Planned/Future Mergers
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(March 2013 )
References
Core city Flag of Tochigi Prefecture Cities Districts