Chūgoku proportional representation block

Chūgoku Proportional Representation Block
Parliamentary constituency
for the Japanese House of Representatives
Map of House of Representatives proportional blocks, with the Chūgoku block highlighted
PrefectureTottori, Shimane, Okayama, Hiroshima and Yamaguchi
Electorate5,902,785 (2024)
Current constituency
Created1994
Representatives10

The Chūgoku proportional representation block (比例中国ブロック) is one of eleven proportional representation (PR) "blocks", multi-member constituencies for the House of Representatives in the Diet of Japan. It consists of the prefectures of Tottori, Shimane, Okayama, Hiroshima, and Yamaguchi. Following the introduction of proportional voting, Chūgoku elected 13 representatives by PR in the 1996 general election, reduced to 11 in the election of 2000, and again to 10 in 2024.

Results timeline

Vote share

Party 1996 2000 2003 2005 2009 2012 2014 2017 2021 2024
LDP 42.81 35.59 37.41 36.72 32.37 34.53 38.16 39.18 43.36 35.89
NFP 23.96
DPJ[a] 12.59 21.68 33.80 28.59 39.73 16.28 17.08
JCP 9.66 8.91 6.31 5.90 5.71 4.98 9.19 6.25 5.55 5.07
SDP 6.37 9.23 4.77 5.15 3.64 1.96 2.11 1.39 1.69 1.82
NPS 1.19
Komeito 15.32 17.71 15.74 12.95 14.08 16.66 14.94 13.98 12.04
LP 8.87
PNP 7.90 4.85
Ishin[b] 17.75 12.71 4.74 9.18 6.37
Your 5.98
TPJ 4.03
CDP 16.72 18.38 19.45
KnT 16.13
DPFP 3.65 10.45
Reiwa 3.03 5.90
Sanseitō 3.00
Others 3.41[c] 0.40[d] 0.75[e] 0.41[f] 4.09[g] 0.65[h] 1.18[i]
Turnout 64.97 61.74 68.90 70.94 58.35 51.96 52.58 52.69 51.19

Seat distribution

Election Distribution Seats
1996                           13
2000                       11
2003                       11
2005                       11
2009                       11
2012                       11
2014                       11
2017                       11
2021                       11
2024                     10

List of representatives

D'Hondt allocation order 1996 2000 2003 2005 2009 2012 2014 2017
1 Kazuko Nose Kiichi Miyazawa Hisaoki Kamei Toshiko Abe Shunji Yuhara Toshifumi Kojima Toshiko Abe Toshifumi Kojima
2 Tetsuo Saito Isao Yamauchi Isao Yamauchi Takashi Wada Toshiko Abe Kei Nakamaru Toshifumi Kojima Mio Sugita
3 Yoshio Sakurauchi Yoshiro Hayashi Katsuyuki Kawai Katsunobu Kato Takashi Takai Toshiko Abe Michiyoshi Yunoki Akiko Kamei
4 Yoshiro Hayashi Tetsuo Saito Tetsuo Saito Tetsuo Saito Yoshitaka Murata Michiyoshi Yunoki Tetsuo Saito Michiyoshi Yunoki
5 Daikichi Ishibashi Kozo Hirabayashi Keisuke Tsumura Mitsuo Mitani Hiroshi Sugakawa Tetsuo Saito Masayoshi Shintani Tetsuo Saito
6 Keigo Masuya Toshimasa Yamada Katsunobu Kato Yoshitake Masuhara Tetsuo Saito Masayoshi Yoshino Takashi Takai Michitaka Ikeda
7 Kazuho Tanigawa Tetsuo Kaneko Koji Sato Daisuke Matsumoto Katsuyuki Kawai Daisuke Sakamoto Michitaka Ikeda Keiichi Furuta
8 Seiji Masamori Yoshiko Nakabayashi Kazuko Nose Seiji Hagiwara Hiroki Hanasaki Mitsuhiro Uesugi Yoshinobu Ohira Takashi Takai
9 Kozo Hirabayashi Kazuho Tanigawa Keigo Masuya Hisaoki Kamei Hidenao Nakagawa Keisuke Tsumura Keisuke Tsumura Keisuke Tsumura
10 Mutsuki Kato Koji Sato Takashi Wada Keigo Masuya Noboru Miura Keigo Masuya Keigo Masuya Shogo Nemoto
11 Hinokita Hitoshi Keigo Masuya Shinji Sato Gaku Hashimoto Toshiaki Komuro Michitaka Ikeda Keiichi Furuta Keigo Masuya
12 Tadatoshi Akiba
Seats abolished
13 Shingo Nakagiri

Election results

2024

2024 results in the Chugoku PR block
Party Votes Swing % Seats +/–
Liberal Democratic Party (LDP) 1,056,320 35.89 7.47 5 1
Constitutional Democratic Party of Japan (CDP) 572,598 19.45 1.08 3 1
Komeito 354,291 12.04 1.95 1 1
Democratic Party For the People (DPFP) 307,681 10.45 6.80 1 1
Japan Innovation Party (Ishin) 187,517 6.37 2.81 0 1
Reiwa Shinsengumi (Reiwa) 173,622 5.90 2.87 0 0
Japanese Communist Party (JCP) 149,218 5.07 0.48 0 0
Sanseitō 88,358 3.00 New 0 New
Social Democratic Party (SDP) 53,620 1.82 0.13 0 0
Total 2,943,225 100.00 10 1
Invalid votes 78,661 2.60
Turnout 3,021,886 51.19 1.49
Registered voters 5,902,785

2021

2021 results in the Chugoku PR block
Party Votes Swing % Seats +/–
Liberal Democratic Party (LDP) 1,352,723 43.36 4.18 6 1
Constitutional Democratic Party of Japan (CDP) 573,324 18.38 1.66 2 0
Komeito 436,220 13.98 0.98 2 0
Japan Innovation Party (Ishin) 286,302 9.18 4.43 1 1
Japanese Communist Party (JCP) 173,117 5.55 0.70 0 0
Democratic Party For the People (DPFP) 113,899 3.65 New 0 New
Reiwa Shinsengumi (Reiwa) 94,446 3.03 New 0 New
Social Democratic Party (SDP) 52,638 1.69 0.30 0 0
NHK Party 36,758 1.18 New 0 New
Total 3,119,427 100.00 11
Invalid votes 72,840 2.28
Turnout 3,192,267 52.69 0.11
Registered voters 6,058,900

2017

2017 results in the Chugoku PR block
Party Votes Swing % Seats +/–
Liberal Democratic Party (LDP) 1,249,073 39.18 1.02 5 0
Constitutional Democratic Party of Japan (CDP) 533,050 16.72 New 2 New
Kibō no Tō 514,191 16.13 New 2 New
Komeito 476,270 14.94 1.72 2 0
Japanese Communist Party (JCP) 199,152 6.25 2.95 0 1
Japan Innovation Party (Ishin) 151,221 4.74 New 0 New
Social Democratic Party (SDP) 44,240 1.39 0.72 0 0
Happiness Realization Party (HRP) 20,701 0.65 0.07 0 0
Total 3,187,898 100.00 11
Invalid votes 66,055 2.03
Turnout 3,253,953 52.58 0.61
Registered voters 6,189,041

2014

2014 results in the Chugoku PR block
Party Votes Swing % Seats +/–
Liberal Democratic Party (LDP) 1,183,903 38.16 3.63 5 0
Democratic Party of Japan (DPJ) 529,819 17.08 0.80 2 0
Komeito 516,892 16.66 2.58 2 0
Japan Innovation Party (JIP) 394,306 12.71 5.04 1 1
Japanese Communist Party (JCP) 285,224 9.19 4.21 1 1
Party for Future Generations 109,016 3.51 New 0 New
Social Democratic Party (SDP) 65,349 2.11 0.15 0 0
Happiness Realization Party (HRP) 18,015 0.58 0.17 0 0
Total 3,102,524 100.00 11
Invalid votes 75,864 2.39
Turnout 3,178,388 51.96 6.38
Registered voters 6,116,465

2012

2012 results in the Chugoku PR block
Party Votes Swing % Seats +/–
Liberal Democratic Party (LDP) 1,210,400 34.53 2.16 5 1
Japan Restoration Party (JRP) 622,226 17.75 New 2 New
Democratic Party of Japan (DPJ) 570,764 16.28 23.45 2 4
Komeito 493,800 14.08 1.13 2 1
Your Party 209,627 5.98 New 0 New
Japanese Communist Party (JCP) 174,648 4.98 0.72 0 0
Tomorrow Party of Japan (TPJ) 141,360 4.03 New 0 New
Social Democratic Party (SDP) 68,653 1.96 1.69 0 0
Happiness Realization Party (HRP) 14,383 0.41 0.34 0 0
Total 3,505,861 100.00 11
Invalid votes 82,531 2.30
Turnout 3,588,392 58.35 12.59
Registered voters 6,150,109

2009

2009 results in the Chugoku PR block
Party Votes Swing % Seats +/–
Democratic Party of Japan (DPJ) 1,704,242 39.73 11.13 6 3
Liberal Democratic Party (LDP) 1,388,451 32.37 3.45 4 1
Komeito 555,552 12.95 2.79 1 1
Japanese Communist Party (JCP) 244,761 5.71 0.20 0 0
People's New Party (PNP) 208,208 4.85 3.04 0 1
Social Democratic Party (SDP) 156,291 3.64 1.51 0 0
Happiness Realization Party (HRP) 32,319 0.75 New 0 New
Total 4,289,824 100.00 11
Invalid votes 106,928 2.43
Turnout 4,396,752 70.94 2.04
Registered voters 6,197,763

2005

2005 results in the Chugoku PR block
Party Votes Swing % Seats +/–
Liberal Democratic Party (LDP) 1,537,080 36.72 0.69 5 0
Democratic Party of Japan (DPJ) 1,196,971 28.59 5.21 3 1
Komeito 658,702 15.74 1.97 2 0
People's New Party (PNP) 330,546 7.90 New 1 New
Japanese Communist Party (JCP) 247,073 5.90 0.41 0 0
Social Democratic Party (SDP) 215,636 5.15 0.38 0 0
Total 4,186,008 100.00 11
Invalid votes 105,032 2.45
Turnout 4,291,040 68.90 7.15
Registered voters 6,228,051

2003

2003 results in the Chugoku PR block
Party Votes Swing % Seats +/–
Liberal Democratic Party (LDP) 1,388,768 37.41 1.82 5 1
Democratic Party of Japan (DPJ) 1,254,880 33.80 12.12 4 2
Komeito 657,311 17.71 2.39 2 0
Japanese Communist Party (JCP) 234,359 6.31 2.60 0 1
Social Democratic Party (SDP) 176,942 4.77 4.46 0 1
Total 3,712,260 100.00 11
Invalid votes 120,691 3.15
Turnout 3,832,951 61.74 3.23
Registered voters 6,207,801

2000

2000 results in the Chugoku PR block
Party Votes Swing % Seats +/–
Liberal Democratic Party (LDP) 1,364,938 35.59 7.23 4 2
Democratic Party of Japan (DPJ) 831,747 21.68 9.09 2 0
Komeito 587,603 15.32 New 2 New
Social Democratic Party (SDP) 353,973 9.23 2.86 1 0
Japanese Communist Party (JCP) 341,851 8.91 0.75 1 0
Liberal Party (LP) 340,358 8.87 New 1 New
Liberal League (LL) 15,164 0.40 New 0 New
Total 3,835,634 100.00 11 2
Invalid votes 165,994 4.15
Turnout 4,001,628 64.97
Registered voters 6,158,811

1996

1996 results in the Chugoku PR block
Party Votes % Seats
Liberal Democratic Party (LDP) 1,578,140 42.81 6
New Frontier Party (NFP) 883,319 23.96 3
Democratic Party (DP) 464,197 12.59 2
Japanese Communist Party (JCP) 356,108 9.66 1
Social Democratic Party (SDP) 234,642 6.37 1
New Socialist Party (NSP) 125,824 3.41 0
New Party Sakigake (NPS) 43,772 1.19 0
Total 3,686,002 100.00 13

References

Notes

  1. ^ 1996 DP
  2. ^ 2012 JRP, 2014 JIP
  3. ^ NSP 3.41
  4. ^ LL 0.40
  5. ^ HRP 0.75
  6. ^ HRP 0.41
  7. ^ Generations 3.51, HRP 0.58
  8. ^ HRP 0.65
  9. ^ NHK 1.18
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