| Rank | Prefectures | Total Road Length | Standard Score | |
|---|---|---|---|---|
| Amount | per 1 Population | |||
| Sort | Desc Asc | Desc Asc | Desc Asc | Desc Asc |
| 1 | Shimane | 18,294,500m | 26.71 | 72.12 |
| 2 | Iwate | 33,409,600m | 26.62 | 71.99 |
| 3 | Akita | 23,906,000m | 24.00 | 67.76 |
| 4 | Nagano | 48,001,800m | 23.12 | 66.33 |
| 5 | Fukushima | 39,173,100m | 20.81 | 62.61 |
| 6 | Tokushima | 15,243,600m | 20.52 | 62.13 |
| 7 | Kochi | 14,147,900m | 19.81 | 60.99 |
| 8 | Ibaraki | 55,939,200m | 19.34 | 60.23 |
| 9 | Miyazaki | 20,152,700m | 18.51 | 58.88 |
| 10 | Gunma | 35,034,600m | 17.87 | 57.86 |
| 11 | Kagoshima | 27,301,000m | 16.79 | 56.11 |
| 12 | Oita | 18,452,100m | 16.02 | 54.86 |
| 13 | Hokkaido | 84,723,100m | 15.93 | 54.71 |
| 14 | Tottori | 8,869,700m | 15.70 | 54.34 |
| 15 | Aomori | 20,009,900m | 15.66 | 54.28 |
| 16 | Gifu | 30,762,100m | 15.32 | 53.73 |
| 17 | Yamagata | 16,734,500m | 15.19 | 53.52 |
| 18 | Wakayama | 13,735,700m | 14.54 | 52.47 |
| 19 | Fukui | 10,971,500m | 14.08 | 51.74 |
| 20 | Mie | 25,337,700m | 14.08 | 51.72 |
| 21 | Yamanashi | 11,212,300m | 13.62 | 50.99 |
| 22 | Niigata | 30,666,000m | 13.53 | 50.84 |
| 23 | Okayama | 25,678,400m | 13.47 | 50.74 |
| 24 | Ehime | 18,365,600m | 13.46 | 50.74 |
| 25 | Saga | 10,990,500m | 13.34 | 50.53 |
| 26 | Nagasaki | 18,041,000m | 13.32 | 50.51 |
| 27 | Toyama | 13,974,700m | 13.23 | 50.36 |
| 28 | Tochigi | 25,404,900m | 12.98 | 49.96 |
| 29 | Kumamoto | 22,212,000m | 12.58 | 49.31 |
| 30 | Yamaguchi | 16,658,700m | 12.05 | 48.44 |
| 31 | Ishikawa | 13,120,200m | 11.44 | 47.46 |
| 32 | Kagawa | 10,290,100m | 10.64 | 46.18 |
| 33 | Nara | 12,721,100m | 9.44 | 44.23 |
| 34 | Miyagi | 21,519,900m | 9.26 | 43.95 |
| 35 | Shiga | 12,505,800m | 8.85 | 43.28 |
| 36 | Hiroshima | 24,685,000m | 8.73 | 43.08 |
| 37 | Shizuoka | 25,204,300m | 6.86 | 40.07 |
| 38 | Chiba | 37,313,200m | 5.97 | 38.64 |
| 39 | Saitama | 42,951,500m | 5.88 | 38.48 |
| 40 | Aichi | 43,964,300m | 5.84 | 38.43 |
| 41 | Fukuoka | 29,393,000m | 5.76 | 38.28 |
| 42 | Okinawa | 8,145,100m | 5.64 | 38.11 |
| 43 | Hyogo | 30,558,800m | 5.55 | 37.96 |
| 44 | Kyoto | 11,989,300m | 4.61 | 36.44 |
| 45 | Tokyo | 24,249,500m | 1.77 | 31.84 |
| 46 | Osaka | 13,726,400m | 1.56 | 31.50 |
| 47 | Kanagawa | 13,014,100m | 1.42 | 31.28 |
| Japan | 1,222,318,600m | 9.65 | ||