| Total Interstate Highway Milage | State |
| 3,332.79 | |
| 2,457.34 | |
| 2,236.43 | |
| 1,850.11 | |
| 1,726.40 | |
| 1.693.93 | |
| 1,472.05 | |
| 1,343.48 | |
| 1,253.19 | |
| 1,245.97 | |
| 1,198.88 | |
| 1,187.56 | |
| 1,168.64 | |
| 1,156.43 | |
| 1,096.79 | |
| 1,082.22 | |
| 1,053.29 | |
| 1,035.27 | |
| 999.90 | |
| 977.29 | |
| 952.91 | |
| 952.88 | |
| 935.36 | |
| 913.60 | |
| 902.84 | |
| | Total Interstate Highway Milage | State |
| 874.34 | |
| 846.58 | |
| 833.56 | |
| 808.44 | |
| 782.10 | |
| 763.67 | |
| 727.41 | |
| 710.04 | |
| 678.31 | |
| 657.59 | |
| 612.93 | |
| 611.76 | |
| 571.13 | |
| 565.63 | |
| 559.97 | |
| 481.66 | |
| 481.04 | |
| 431.36 | |
| 366.54 | |
| 346.17 | |
| 320.22 | |
| 224.54 | |
| 68.53 | |
| 54.91 | |
| 40.61 | |
|