House of Councillors elections were held in Japan on 7 July 1968,[ 1] electing half the seats in the House. The Liberal Democratic Party won the most seats, although this marked the first House of Councillors election in the LDP's history in which its share of the popular vote decreased when compared to the election prior to it .
1968 Japanese House of Councillors election
First party
Second party
Third party
Leader
Eisaku Satō
Tomomi Narita
Yoshikatsu Takeiri
Party
LDP
Socialist
Kōmeitō
Seats after
137
65
24
Seat change
3
8
4
Popular vote
20,120,089
8,542,199
6,656,771
Percentage
46.7%
19.8%
15.5%
Swing
0.5%
3.6%
1.8%
Fourth party
Fifth party
Leader
Eiichi Nishimura
Kenji Miyamoto
Party
Democratic Socialist
JCP
Seats after
10
7
Seat change
3
3
Popular vote
2,578,581
2,146,879
Percentage
6.0%
5.0%
Swing
0.1%
0.6%
Party National Constituency Seats Votes % Seats Votes % Seats Not up Won Total after +/– Liberal Democratic Party 20,120,089 46.71 21 19,405,546 44.86 48 68 69 137 –3 Japan Socialist Party 8,542,199 19.83 12 12,617,680 29.17 16 37 28 65 –8 Komeitō 6,656,771 15.45 9 2,632,528 6.09 4 11 13 24 +4 Democratic Socialist Party 2,578,581 5.99 4 3,010,089 6.96 3 3 7 10 +3 Japanese Communist Party 2,146,879 4.98 3 3,577,179 8.27 1 3 4 7 +3 Other parties 157,501 0.37 0 106,587 0.25 0 0 0 0 0 Independents 2,872,279 6.67 2 1,910,371 4.42 3 2 5 7 0 Total 43,074,299 100.00 51 43,259,980 100.00 75 124 126 250 –1 Valid votes 43,074,299 94.84 43,259,980 95.24 Invalid/blank votes 2,343,354 5.16 2,161,083 4.76 Total votes 45,417,653 100.00 45,421,063 100.00 Registered voters/turnout 65,886,145 68.93 65,886,145 68.94 Source: Ministry of Internal Affairs and Communications ,[ 1] [ 2] National Diet