The is a constituency that represents Ibaraki Prefecture in the House of Councillors in the Diet of Japan. It has four Councillors in the 248-member house.
Outline The constituency represents the entire population of Ibaraki Prefecture. The district elects four Councillors to six-year terms, two each at alternating elections held every three years. The district has 2,362,192 registered voters as of July 2025. The Councillors currently representing Ibaraki are: Akiyoshi Katō (Liberal Democratic Party (LDP), first term; term ends in 2028) Makiko Dōgomi (Democratic Party For the People (DPFP), first term; term ends in 2028) Ryōsuke Kōzuki (LDP, third term; term ends in 2031) Shoko Sakurai (Sanseitō, first term; term ends in 2031)
Elected Councillors Class of 1947 Election year Class of 1950(3-year term in 1947) Yasuji Yūki(Ind.) Masaji Shibata(Liberal) 1947 Nobuo Ōhata(Social Democratic) Tsuneo Ikeda(Ind.) 1950 Yūichi Kōri(Liberal) Shichihei Kikuta(National Democratic) Shigefumi Miyata(Liberal) 1950 by-election Tsunesuke Mutō(Kaishintō) 1953 1956 Yūichi Kōri(LDP) Motojiro Mori(Social Democratic) Tsunesuke Mutō(LDP) Sōzō Ōmori(Social Democratic) 1959 1962 Ichiji Suzuki(LDP) 1963 by-election Kishirō Nakamura(LDP) 1965 1968 Fujio Takeuchi(LDP) 1971 Tomi Nakamura(Minor party)1972 by-election 1974 Taeko Iwakami(Minor party) Osamu Yatabe(Social Democratic) Yūichi Kōri(LDP)1975 by-election Michitada Takasugi(Social Democratic) 1977 1978 by-election Nirō Iwakami(LDP) 1980 Ikuo Soneda(LDP) 1983 1986 Makoto Taneda(Social Democratic) Akio Kanō(LDP) 1989 1989 by-election Itsuo Nomura(LDP) Yasu Kanō(LDP) 1992 by-election 1992 Moto Kobayashi(New Frontier) 1995 1998 Kōichi Kuno(LDP) Akira Gunji(DPJ) Moto Kobayashi(DPJ) 2001 2003 by-election Hiroshi Okada(LDP) 2004 Yukihisa Fujita(DPJ) Tamon Hasegawa(LDP) 2007 2010 Ryōsuke Kōzuki(LDP) 20132016 Akira Gunji(DP) Takumi Onuma (CDP)20192022 Akiyoshi Katō (LDP) Makiko Dōgomi (Ind.) Shoko Sakurai(Sanseitō)2025
Election results Elections in the 2020s
Elections in the 2010s
Elections in the 2000s
See also List of districts of the House of Councillors of Japan Ibaraki 4th district, one of seven districts that represents Ibaraki Prefecture in the House of Representatives
References