merged to form the city of Yasu) October 1, 2004 Kōka District (甲賀郡), Shiga (The towns of Ishibe and Kosei merged to form the city of Konan; The towns of Minakuchi, Tsuchiyama, Kōka, Kōnan, and Shigaraki merged to form the city of Kōka) October 1, 2004 Nogi District (能義郡), Shimane (The towns of Hirose and Hakuta merged with the city of Yasugi to form the city of Yasugi) October 1, 2004 Kawakami District (川上郡), Okayama (The town of Nariwa, Kawakami, and Bitchū merged with the city of Takahashi and the town of Ukan from Jōbō District to form the city of Takahashi) October 1, 2004 Oe District (麻植郡), Tokushima (The towns of Kamoshima, Kawashima, Yamakawa, and the village of Misato merged to form the city of Yoshinogawa) November 1, 2004 Kitaaizu District (北会津郡), Fukushima (The village of Kitaaizu merged into the city of Aizuwakamatsu) November 1, 2004 Taga District (多賀郡), Ibaraki (The town of Jūō merged into the city of Hitachi) November 1, 2004 Higashitonami District (東礪波郡), Toyama (The town of Shogawa and the city of Tonami merged to form the city of Tonami; the town of Jōhana, the villages of Taira, Kamitaira, Toga, the town of Inami, the village of Inokuchi, and the town of Fukuno merged with the town of Fukumitsu from Nishitonami District to form the city of Nanto) November 1, 2004 Ayama District (阿山郡), Mie (The town of Iga, the village of Shimagahara, the town of Ayama, and the village of Ōyamada merged with the city of Ueno and the town of Aoyama in Naga District to form the city of Iga) November 1, 2004 Naga District (名賀郡), Mie (The town of Aoyama and the city of Ueno and 4 towns and villages from Ayama District merged to form the city of Iga) November 1, 2004 Hikami District (氷上郡), Hyōgo (The towns of Kaibara, Hikami, Aogaki, Kasuga, Sannan, and Ichijima merged to form the city of Tamba) November 1, 2004 Ketaka District (気高郡), Tottori (The towns of Ketaka, Shikano, and Aoya merged into the city of Tottori) November 1, 2004 Mino District (美濃郡), Shimane (The towns of Mito and Hikimi merged into the city of Masuda) November 1, 2004 Ohara District (大原郡), Shimane (The towns of Daitō, Kamo, and Kisuki merged with three towns from Iishi District to form the city of Unnan) November 1, 2004 Oku District (邑久郡), Okayama (The towns of Ushimado, Oku, and