is a current single-member electoral district for the House of Representatives, the lower house of the National Diet of Japan. It is located in Kumamoto and since 2017 covers roughly the Southern half of Kumamoto.MIC: 2017 changes to House of Representatives electoral districts, Map and table of changes in Kumamoto
Before 2013, it consisted of a small section of the prefectural capital Kumamoto (the former towns of Tomiai and Jōnan in today's Minami-ku), the cities of Amakusa, Uto, Kami-Amakusa and Uki and the remaining towns and villages of the former Amakusa, Upper (Kami-Mashiki) and Lower Mashiki (Shimo-Mashiki) counties. As of September 2012, 294,547 eligible voters were resident in the district.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>選挙区ごとの選挙人名簿及び在外選挙人名簿登録者数等
Before 1996, the area had been part of the four-member Kumamoto 2nd district. Representatives had included Sunao Sonoda (DPJ→PDP→Progressive→JDP→LDP, 1947–1984) and his son Hiroyuki (LDP→NPH, 1986–1996). Hiroyuki Sonoda, deputy chief cabinet secretary during the LDP-JSP-NPH coalition, won the new single-member 4th district six times in a row after the electoral reform. In several elections, he was not even challenged by a candidate from the major party of the opposing bloc, exceptions were the initial election of 1996 and the "postal election" of 2005. In 2012, neither of the two established major parties contested the seat. Sonoda's main challenger in 2012, Masayoshi Yagami, had become a Liberal Democrat (JNP→NFP→LDP) when he represented the neighbouring 5th district in the 1990s, but became an independent for his two terms as mayor of Sagara and his failed run for governor of Kumamoto in 2008.
List of representatives Representative Party Dates Notes Hiroyuki Sonoda NPS 1996–2000 Became independent in 1998, returned to the LDP in 1999 LDP 2000–2012 Joined SPJ in 2010, merged into SP, then JRP in 2012 JRP 2012–2014 Co-founded the Party for Future Generations in 2014 PJK 2014–2017 Returned to LDP in 2015, moved to the Kyūshū PR block in the 2017 electionLiberal Democratic Party: Nominated candidates (in both tiers) for the 48th general House of Representatives election Yasushi Kaneko LDP2017–Represented the abolished Kumamoto 5th district 2000–2017
Election results
References