| Liberal Democratic Party | Democratic Party of Japan | New Komeito | Liberal Party | Japanese Communist Party | Social Democratic Party | |
| TOTAL | 38.6 | 16.4 | 15.0 | 7.7 | 7.9 | 6.6 |
| 1. Hokkaidō | 35.3 | 21.4 | 14.5 | 6.3 | 9.9 | 5.8 |
| 2. Aomori | 47.7 | 10.2 | 12.0 | 8.6 | 6.1 | 7.1 |
| 3. Iwate | 32.4 | 6.7 | 7.6 | 35.4 | 5.5 | 7.2 |
| 4. Miyagi | 39.8 | 16.2 | 13.2 | 10.4 | 6.5 | 7.2 |
| 5. Akita | 42.5 | 14.7 | 12.3 | 7.2 | 6.2 | 10.5 |
| 6. Yamagata | 46.9 | 15.1 | 11.0 | 6.7 | 5.3 | 7.1 |
| 7. Fukushima | 42.5 | 17.3 | 11.2 | 9.5 | 6.5 | 6.7 |
| 8. Ibaraki | 43.8 | 15.1 | 15.6 | 7.2 | 5.2 | 4.1 |
| 9. Tochigi | 46.2 | 19.8 | 12.6 | 7.1 | 4.2 | 4.1 |
| 10. Gunma | 48.1 | 16.8 | 12.7 | 5.7 | 6.2 | 4.9 |
| 11. Saitama | 35.0 | 16.6 | 15.7 | 9.0 | 9.8 | 5.8 |
| 12. Chiba | 36.5 | 15.9 | 15.1 | 10.4 | 7.5 | 5.7 |
| 13. Tokyo | 34.5 | 16.2 | 14.9 | 8.1 | 10.7 | 6.6 |
| 14. Kanagawa | 36.7 | 18.8 | 13.0 | 8.2 | 7.6 | 7.2 |
| 15. Niigata | 45.3 | 12.9 | 8.3 | 8.1 | 6.0 | 9.2 |
| 16. Toyama | 46.7 | 10.1 | 7.7 | 14.1 | 4.3 | 10.4 |
| 17. Ishikawa | 51.3 | 15.7 | 10.6 | 7.5 | 4.5 | 3.8 |
| 18. Fukui | 49.4 | 16.6 | 10.7 | 6.7 | 4.6 | 3.8 |
| 19. Yamanashi | 43.0 | 18.9 | 13.7 | 7.5 | 6.3 | 4.1 |
| 20. Nagano | 33.1 | 25.6 | 12.1 | 5.6 | 9.7 | 8.1 |
| 21. Gifu | 44.8 | 18.0 | 12.8 | 5.8 | 6.6 | 4.8 |
| 22. Shizuoka | 41.7 | 18.8 | 12.5 | 6.8 | 6.3 | 5.4 |
| 23. Aichi | 35.3 | 22.0 | 14.8 | 7.2 | 7.1 | 5.2 |
| 24. Mie | 39.2 | 21.0 | 14.7 | 7.3 | 5.8 | 5.0 |
| 25. Shiga | 41.4 | 19.6 | 11.3 | 5.3 | 9.7 | 6.3 |
| 26. Kyoto | 36.5 | 15.1 | 13.8 | 5.4 | 16.9 | 5.9 |
| 27. Osaka | 32.2 | 13.3 | 21.2 | 7.3 | 12.7 | 5.6 |
| 28. Hyogo | 32.6 | 16.3 | 18.0 | 7.3 | 8.9 | 7.0 |
| 29. Nara | 39.2 | 17.8 | 15.7 | 6.2 | 7.9 | 6.7 |
| 30. Wakayama | 36.7 | 11.0 | 20.1 | 12.4 | 8.4 | 4.0 |
| 31. Tottori | 41.7 | 16.2 | 17.9 | 4.3 | 6.3 | 7.1 |
| 32. Shimane | 47.3 | 18.5 | 13.9 | 4.0 | 6.1 | 4.3 |
| 33. Okayama | 43.3 | 15.8 | 19.1 | 4.6 | 6.7 | 4.8 |
| 34. Hiroshima | 42.0 | 14.3 | 16.3 | 6.4 | 5.6 | 5.5 |
| 35. Yamaguchi | 42.4 | 16.4 | 15.6 | 7.1 | 6.7 | 4.8 |
| 36. Tokushima | 42.6 | 18.3 | 16.4 | 4.9 | 7.4 | 3.8 |
| 37. Kagawa | 46.8 | 11.1 | 15.7 | 4.9 | 6.2 | 8.8 |
| 38. Ehime | 43.3 | 12.9 | 17.3 | 7.1 | 5.8 | 5.5 |
| 39. Kochi | 40.8 | 13.8 | 17.5 | 4.3 | 12.3 | 4.5 |
| 40. Fukuoka | 35.9 | 14.3 | 20.1 | 6.6 | 7.1 | 8.7 |
| 41. Saga | 47.5 | 13.3 | 14.5 | 5.5 | 4.6 | 8.2 |
| 42. Nagasaki | 40.5 | 13.5 | 14.7 | 14.8 | 4.3 | 6.9 |
| 43. Kumamoto | 46.4 | 18.1 | 15.3 | 4.5 | 4.0 | 4.6 |
| 44. Ōita | 41.5 | 13.5 | 13.9 | 5.3 | 4.7 | 15.5 |
| 45. Miyazaki | 45.9 | 13.9 | 16.7 | 4.2 | 4.6 | 8.7 |
| 46. Kagoshima | 47.0 | 10.1 | 14.1 | 4.2 | 3.8 | 8.5 |
| 47. Okinawa | 23.2 | 7.6 | 19.7 | 2.9 | 5.2 | 34.6 |
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