Yamanashi 1st district
Yamanashi 1st district is a single-member electoral district for the House of Representatives, the lower house of the National Diet of Japan located in western Yamanashi Prefecture. As of September 2022 it had 424,557 eligible voters.
History
Before the introduction of single-member districts in the 1990s, all of Yamanashi had formed one at-large district that elected five members to the House of Representatives. After the last House of Representatives election under the old system in 1993, Representatives from Yamanashi included Liberal Democrat Eiichi Nakao, Socialist Azuma Koshiishi and reformist Sakihito Ozawa.Representatives over time
Nakao and Koshiishi contested the new 1st district in 1996: Nakao won. Koshiishi was elected to the Diet in the 1998 election to represent Yamanashi in the House of Councillors.In the 2000 Representatives election, Ozawa challenged Nakao and unseated him. He held onto the seat until 2012 when he joined the Japan Restoration Party and lost the district to Liberal Democratic newcomer Noriko Miyagawa, a former junior high school teacher.
Katsuhito Nakajima won the seat for the Democratic Party of Japan, and then continued to represent the electorate for the Democratic Party after the DPJ merged with other parties to form this new party. He was then re-elected as an independent in the 2017 election.
The LDP’s Shinichi Nakatani was elected in 2021, but was then defeated in the 2024 election by Nakajima, who won the seat back running as a member of the Constitutional Democratic Party.
Area
Cities
Towns
- Ichikawamisato
- Shōwa
- Towns of Minamikoma District