Akadomari merged with the city of Ryōtsu to form the city of Sado) March 1, 2004 Gujō District (郡上郡), Gifu (The towns of Hachiman, Yamato, Shirotori, and the villages of Takasu, Minami, Meihō, and Wara merged to form the city of Gujō) March 1, 2004 Mashita District (益田郡), Gifu (The towns of Hagiwara, Osaka, Gero, Kanayama, and the village of Maze merged to form the city of Gero) March 1, 2004 Takata District (高田郡), Hiroshima (The towns of Yoshida, Yachiyo, Midori, Takamiya, Kōda, and Mukaihara merged to form the city of Akitakata) March 1, 2004 Iki District (壱岐郡), Nagasaki (The towns of Gōnoura, Katsumoto, Ashibe, and Ishida merged to form the city of Iki) March 1, 2004 Shimoagata District (下県郡), Nagasaki (The towns of Izuhara, Mitsushima, and Toyotama merged with three towns from Kamiagata District to form the city of Tsushima) March 1, 2004 Kamiagata District (上県郡), Nagasaki (The towns of Mine, Kamiagata, and Kamitsushima merged with three towns from Shimoagata District to form the city of Tsushima) April 1, 2004 Naka District (中郡), Kyoto (The towns of Mineyama and Ōmiya and other 2 districts 4 towns merged to form the city of Kyōtango) April 1, 2004 Takeno District (竹野郡), Kyoto (The towns of Amino, Takeno, Yasaka and the other 2 districts 3 towns merged to form the city of Kyōtango) April 1, 2004 Kumano District (熊野郡), Kyoto (The town of Kumihama and the other 2 districts 5 towns merged to form the city of Kyōtango) April 1, 2004 Yabu District (養父郡), Hyōgo (The towns of Yōka, Yabu, Ōya, and Sekinomiya merged to form the city of Yabu) April 1, 2004 Futami District (双三郡), Hiroshima (The towns of Kisa, Mirasaka, Miwa, and the villages of Sakugi, Kimita, and Funo merged with the city of Miyoshi and the town of Kōnu from Kōnu District to form the city of Miyoshi) April 1, 2004 Uma District (宇摩郡), Ehime (The town of Doi, the village of Shingū, and the cities of Iyomishima and Kawanoe merged to form the city of Shikokuchūō) April 1, 2004 Higashiuwa District (東宇和郡), Ehime (The towns of Akehama, Uwa, Nomura, Shirokawa, and Mikame from Nishiuwa District merged to form the city of Seiyo) October 1, 2004 Shima District (志摩郡), Mie (The towns of Hamajima, Daiō, Ago, Shima, and Isobe merged to form the city of Shima) October 1, 2004 Yasu District (野洲郡), Shiga (The towns of Chūzu and Yasu