Iwate 4th district was a constituency of the House of Representatives in the Diet of Japan (national legislature). It was located in southwestern Iwate and consisted of the cities of Hanamaki, Kitakami and Ōshū as well as the Waga and Isawa Districts. As of 2012, 305,917 eligible voters were registered in the district.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, the area had been part of Iwate 2nd district where three Representatives had been elected by single non-transferable vote. In a 2017 reapportionment, Iwate lost one seat and was subdivided into three districts. The area of the old 4th district is now part of the new 3rd districtMIC: Summary of changes to the House of Representatives single-member districts (also contains the changes to the proportional districts) & Map of changes in Iwate

The only representative for Iwate 4th district from its creation in 1996 to its abolition has been former Liberal Democratic Party secretary-general Ichirō Ozawa (LDP→JRP→NFP→LP→DPJ→LF→TPJ→PLP).

List of representatives Election Representative Party Notes1996Ichirō OzawaNFP2000LP2003DPJ200520092012TPJ 2014PLP

Election results

References