| Region | Total Miles | Total Lane Miles | Total DVMT | Truck DVMT |
| 1 | 543.539 | 1,986.139 | 8,030,300.203 | 1,118,976.725 |
| 2 | 653.996 | 2,009.457 | 8,405,053.372 | 954,797.609 |
| 3 | 666.757 | 1,938.134 | 6,268,034.678 | 641,788.837 |
| 4 | 590.517 | 1,978.651 | 8,673,610.561 | 904,777.917 |
| 5 | 631.045 | 1,479.281 | 3,066,522.114 | 279,722.694 |
| 6 | 353.198 | 1,647.946 | 21,366,943.499 | 1,477,043.506 |
| Total | 3,439.052 | 11,039.608 | 55,810,464.427 | 5,377,107.288 |
* Only counties with NHS state highway mileage are shown. Does not include NHS mileage on city and county road systems.