Hata District, Kōchi
Towns and villages
- On April 10, 2005 the old city of Nakamura, and the village of Nishitosa merged to form the new city of Shimanto.
- On March 20, 2006 the towns of Taishō and Towa merged with the town of Kubokawa, from Takaoka District, to form the new town of Shimanto, in Takaoka District.
- On March 20, 2006 the towns of Ōgata and Saga merged to form the new town of Kuroshio.