(as of April 21, 2017)
|Liberal Democratic Party||292 (25)|
|The Democratic Party and Club of Independents||95 (9)|
|Japanese Communist Party||21 (6)|
|Nippon Ishin (Japan Innovation Party)||15 (0)|
|Liberal Party||2 (0)|
|Social Democratic Party||2 (0)|
Note: Figures in parentheses show the number of women members.
In-House Group: A group of House Members who engage in joint activities within the House. Usually, a political party forms an in-House group inside the House, but occasionally there are cases where a group is formed by (1) House Members who do not belong to a particular political party, (2) a political party and a House Member or Members who do not belong to any political party, or (3) two or more political parties.