The Nagano at-large district (長野県選挙区, Nagano-ken senkyo-ku) is a multi-member constituency of the House of Councillors in the Diet of Japan. It consists of Nagano Prefecture and elects four Councillors, two every three years by single non-transferable vote (SNTV) for six-year terms. It is unique among similar rural, two-seat districts for its loyalty to opposition parties; an LDP candidate has not won the district since it became a two-seat contest in 2016. The last time it won the prefecture-wide vote was in 2013, when the DP did not win a single prefecture nationwide, and it had remained an opposition bulwark since well before the House of Councilors reform election in 1995.
Elected Councillors class of 1947 election year class of 1950 #1(1947: #1, 6-year term) #2(1947: #2, 6-year term) #1(1947: #3, 3-year term) #2(1947: #4, 3-year term) Sanshichi Hanyū(JSP) Shirō Kiuchi(DP) 1947 Tatsuya Yonekura(Coop.) Morio Kinoshita † 1947(JLP) 1948 by-el. Uemon Ikeda(JLP) 1950 Kotora Tanahashi(JSP) Uemon Ikeda(LP) Sanshichi Hanyū(leftist faction JSP) Shirō Kiuchi(Yoshida faction LP) 1953 1956 Kunitarō Koyama(LDP) Sanshichi Hanyū(JSP) Shirō Kiuchi(LDP) 1959 1962 Torao Hayashi(JSP) 1965 1968 1971 1974 Ippei Koyama(JSP) Tadao Natsume(LDP) Maki Murasawa(JSP) Shin'ichirō Shimojō(LDP) 1977 1980 Tadao Natsume(LDP) Ippei Koyama(JSP) Shin'ichirō Shimojō(LDP) Maki Murasawa(JSP) 1983 1986 Ippei Koyama(JSP) Kazuto Mukaiyama(LDP) Maki Murasawa(JSP) Shin'ichirō Shimojō(LDP) 1989 1992 Toshimi Kitazawa(LDP) Kiyoshi Imai(JSP) Mineo Koyama(NFP) Maki Murasawa † 1999(JSP) 1995 1998 Toshimi Kitazawa(DPJ) Masatoshi Wakabayashi # 2010(LDP) Yūichirō Hata(DPJ) 1999 by-el. Hiromi Yoshida(LDP) 2001 2004 Yūichirō Hata(DPJ) Hiromi Yoshida(LDP) 2007 2010 Kenta Wakabayashi(LDP) Toshimi Kitazawa(DPJ)
Party affiliations as of election day; #: resigned; †: died in office.
Recent election results
Notes
References House of Councillors: Alphabetical list of former Councillors