Tokyo 6th district is a constituency of the House of Representatives in the Diet of Japan (national legislature). It is located in Tokyo, and consists of a part of Setagaya, one of Tokyo's 23 special wards. With 2.18 times as many voters as Tokushima's 1st district, it had the lowest electoral weight throughout Japan in the election of 2005.Yomiuri Shimbun, August 31, 2005: 1票の格差2．18倍 衆院選有権者数 In 2007 the Supreme Court dismissed a claim that the election in this and other Tokyo districts was unconstitutional and thus invalid.Supreme Court: decision of June 13, 2007 As of September 2012, 486,353 eligible voters were registered in the district, giving them the third lowest electoral weight in the country.Ministry of Internal Affairs and Communications (MIC): 平成24年9月2日現在選挙人名簿及び在外選挙人名簿登録者数
Before the electoral reform of 1994, Setagaya was part of Tokyo 3rd district, a three-member single non-transferable vote (SNTV) constituency. The post-reform single-member constituencies were used in the 1996 election for the first time.
Since its creation, the urban district had been dominated by opposition candidates until the landslide "postal privatization" election of 2005 when Liberal Democratic candidate Takao Ochi was able to defeat Democratic incumbent Yōko Komiyama by a slim margin. Komiyama was reelected via the Tokyo proportional representation block and ran again in Tokyo 6th district in the election of 2009. In 2012, Ochi received only less than a third of the vote but retook the district as the opposition to the LDP splintered. After Democratic representative Kōki Ishii had been stabbed to death in 2002 by a rightwing activist,The Japan Times, October 26, 2002: Opposition lawmaker assassinated. Outspoken DPJ member stabbed in front of his house; attacker flees.The Japan Times, July 1, 2005: Rightist's life term upheld for DPJ lawmaker's slaying a by-election was held on April 27, 2003.
List of representatives Representative Party Dates Notes Tetsundo Iwakuni NFP 1996–2000 Kōki Ishii DPJ 2000–2002 Yōko Komiyama DPJ 2003–2005 Re-elected in the Tokyo PR block Takao Ochi LDP 2005–2009 Failed re-election in the Tokyo block Yōko Komiyama DPJ 2009–2012 Failed re-election in the Tokyo block Takao Ochi LDP 2012–2017 Failed re-election in the Tokyo block Takayuki Ochiai CDP 2017-2026 Re-elected in the Tokyo PR block LDP 2026–
Election results
References