Research on the Conservative Party of Japan 58: Proportional Representation Votes by Age Group in the House of Councillors Election

This House of Councillors election was a historic one in which the bedrock supporters who had sustained the Liberal Democratic Party moved in a landslide to the newly emerged conservative party, and the results can be clearly seen in the exit polls released by NHK.
2025.07.20
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The header image on this page is the age-based distribution of proportional representation votes by political party, based on the exit poll results published on this site.
Among those in their teens, 20s, and 30s, the combination of the DPP, Sanseito, and the Conservative Party holds an absolute majority, and this trend continues up to those in their 60s; it is only among those in their 70s and older that the old forces of the LDP and the CDP hold a majority.
In 10 or 20 years, the old forces will become completely minor factions.

I am very interested to see how this trend will be maintained in the next general election, but it seems almost certain that the miracle of the explosive increase in support for the Sanseito party this time will be replicated next time by the Conservative Party of Japan increasing its vote count.

It is obvious that even if the number of seats increases too rapidly, it will eventually lead to internal division, so I believe it is essential to increase seats slowly and steadily.