Chiba 5th district
Electoral district in Japan
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Chiba 5th District (千葉県第5区, Chiba-ken dai-go-ku) is an electoral district in the Japanese House of Representatives. The district was established in 1994 after the introduction of single-member constituencies in that year. Since its creation it has been redistricted twice: once in 2002 and again in 2022.
Electorate413,484 (as of September 2022)[1]
Created1994
| Chiba 5th District | |
|---|---|
| 千葉県第4区 | |
| Parliamentary constituency for the Japanese House of Representatives | |
 | |
| Prefecture | Chiba |
| Proportional District | Southern Kanto |
| Electorate | 413,484 (as of September 2022)[1] |
| Current constituency | |
| Created | 1994 |
| Seats | One |
| Party | LDP |
| Representative | Arfiya Eri |
Arfiya Eri, a Liberal Democratic Party politician of Uyghur won a by-election on 17 April 2023.[2]
Areas covered
Current district
Areas covered 2002–2022
Areas covered before 2002
From its establishment in 1994 until its first redistricting in 2002, the areas covered by the district were as follows:
List of representatives
| Election | Representative | Party | Notes | |
|---|---|---|---|---|
| 1996 | Kou Tanaka | Democratic | Elected mayor of Ichikawa City in 2022 | |
| 2000 | Democratic | |||
| 2003 | Hirotami Murakoshi | Democratic | ||
| 2005 | Kentaro Sonoura | Liberal Democratic | ||
| 2009 | Hirotami Murakoshi | Democratic | Mayor of Ichikawa City in 2018 – 2022 | |
| 2012 | Kentaro Sonoura | Liberal Democratic | Resigned on 21 December 2022 | |
| 2014 | ||||
| 2017 | ||||
| 2021 | ||||
| Vacant (December 2022–April 2023) | ||||
| 2023 by-el | Arfiya Eri | Liberal Democratic | ||
| 2024 | Kentarō Yazaki | CDP | ||
| 2026 | Arfiya Eri | Liberal Democratic | ||
Election results
‡ - Also ran in the South Kanto PR block election
| Party | Candidate | Votes | % | ±% | ||
|---|---|---|---|---|---|---|
| LDP | Arfiya Eri‡ | 85,073 | 36.5 |  8.8 | ||
| DPP | Junko Okano‡ (elected in S. Kanto PR block) |
53,532 | 22.9 |  0.7 | ||
| Centrist Reform | Kentarō Yazaki‡ | 47,990 | 20.6 | 10.0 | ||
| Team Mirai | Shūhei Kobayashi‡ (elected in S. Kanto PR block) |
25,408 | 10.9 | |||
| Sanseitō | Jun'ichi Miyaji | 21,386 | 9.2 | 4.3 | ||
| Registered electors | 416,930 | |||||
| Turnout | 57.02 | 3.81 | ||||
| LDP gain from Centrist Reform | ||||||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| CDP | Kentarō Yazaki‡ | 66,031 | 30.60 | 3.01 | |
| LDP | Arfiya Eri‡ (elected in PR block) | 59,636 | 27.63 | 2.85 | |
| DPP | Junko Okano‡ (elected in PR block) | 51,033 | 23.65 | 8.63 | |
| Ishin | Tomoyasu Kishino‡ | 17,615 | 8.16 | 5.72 | |
| JCP | Masato Sakurai | 11,015 | 5.10 | 2.37 | |
| Sanseitō | Jun'ichi Miyaji | 10,490 | 4.86 | New | |
| Registered electors | 414,963 | ||||
| Turnout | 53.21 | 14.96 | |||
| CDP gain from LDP | |||||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| LDP | Arfiya Eri | 50,578 | 30.58 | 16.39 | |
| CDP | Kentarō Yazaki | 45,635 | 27.59 | 1.72 | |
| DPP | Junko Okano | 24,842 | 15.02 | 4.83 | |
| Ishin | Tomoyasu Kishino | 22,952 | 13.88 | 0.36 | |
| JCP | Kazuko Saitō | 12,360 | 7.47 | 6.78 | |
| Independent | Kentaro Hoshi | 6,561.599 | 3.97 | New | |
| Seijika Joshi | Mitsue Oda | 2,463 | 1.49 | New | |
| Registered electors | 451,273 | ||||
| Turnout | 38.25 | 15.82 | |||
| LDP hold | |||||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| LDP | Kentaro Sonoura‡ | 111,985.611 | 46.97 | 4.05 | |
| CDP | Kentaro Yazaki‡ | 69,887.387 | 29.31 | New | |
| Ishin | Tamotsu Shīki‡ | 32,241 | 13.52 | New | |
| DPP | Atsushi Tokita‡ | 24,307 | 10.19 | New | |
| Registered electors | 450,365 | ||||
| Turnout | 54.07 | 4.96 | |||
| LDP hold | |||||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| LDP | Kentaro Sonoura‡ | 107,299 | 51.02 | 2.78 | |
| CDP | Atsushi Yamada‡ | 62,894 | 29.91 | New | |
| Kibō no Tō | Junko Okano‡ | 40,115 | 19.07 | New | |
| Registered electors | 438,691 | ||||
| Turnout | 49.11 | 0.09 | |||
| LDP hold | |||||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| LDP | Kentaro Sonoura‡ | 105,941 | 53.80 | 18.49 | |
| Democratic | Hirotami Murakoshi‡ | 57,500 | 29.20 | 7.09 | |
| JCP | Fumiko Asano‡ | 28,055 | 14.25 | 8.82 | |
| Independent Politician | Kazuo Ishida | 5,411 | 2.75 | New | |
| Registered electors | 415,510 | ||||
| Turnout | 49.20 | 8.66 | |||
| LDP hold | |||||