| County | Total Miles | Total Lane Miles | Total DVMT | Truck DVMT |
| Adams | 122.765 | 536.135 | 5,187,863.345 | 578,901.418 |
| Alamosa | 33.735 | 75.436 | 235,549.760 | 18,355.089 |
| Arapahoe | 114.433 | 505.933 | 4,732,228.604 | 375,119.938 |
| Archuleta | 43.423 | 100.297 | 255,978.101 | 18,861.034 |
| Baca | 46.658 | 98.963 | 116,885.215 | 59,606.249 |
| Bent | 37.934 | 89.614 | 132,684.518 | 18,361.919 |
| Boulder | 59.706 | 226.829 | 2,055,155.324 | 73,709.269 |
| Broomfield | 21.003 | 87.450 | 739,023.647 | 44,897.913 |
| Chaffee | 67.509 | 168.300 | 281,553.760 | 33,028.765 |
| Cheyenne | 34.292 | 71.026 | 94,941.706 | 53,605.746 |
| Clear Creek | 48.217 | 222.226 | 1,205,334.620 | 113,264.728 |
| Conejos | 25.721 | 51.442 | 110,439.204 | 8,430.837 |
| Costilla | 30.773 | 69.967 | 115,763.309 | 18,018.608 |
| Crowley | 0.000 | 0.000 | 0.000 | 0.000 |
| Custer | 0.000 | 0.000 | 0.000 | 0.000 |
| Delta | 24.759 | 64.547 | 258,779.594 | 21,703.779 |
| Denver | 69.925 | 388.640 | 6,544,757.099 | 418,002.632 |
| Dolores | 19.856 | 50.456 | 54,659.643 | 11,470.314 |
| Douglas | 64.859 | 239.500 | 3,210,748.694 | 255,630.671 |
| Eagle | 66.806 | 264.730 | 1,371,664.461 | 160,214.248 |
| El Paso | 129.792 | 470.879 | 4,277,346.944 | 352,500.356 |
| Elbert | 53.279 | 161.549 | 344,511.551 | 93,881.459 |
| Fremont | 70.569 | 198.148 | 430,790.819 | 38,571.864 |
| Garfield | 83.320 | 333.280 | 1,503,509.921 | 162,518.848 |
| Gilpin | 0.000 | 0.000 | 0.000 | 0.000 |
| Grand | 103.135 | 222.634 | 458,250.545 | 33,494.292 |
| Gunnison | 73.642 | 165.945 | 235,253.091 | 30,703.303 |
| Hinsdale | 0.000 | 0.000 | 0.000 | 0.000 |
| Huerfano | 57.390 | 184.210 | 425,892.185 | 77,778.843 |
| Jackson | 3.207 | 7.610 | 7,696.800 | 939.007 |
| Jefferson | 122.796 | 545.808 | 5,748,406.745 | 308,412.494 |
| Kiowa | 26.906 | 53.812 | 70,553.002 | 39,273.862 |
| Kit Carson | 60.016 | 240.064 | 510,861.753 | 151,573.575 |
| La Plata | 98.326 | 262.720 | 816,031.639 | 51,476.188 |
| Lake | 0.000 | 0.000 | 0.000 | 0.000 |
| Larimer | 150.259 | 482.746 | 2,528,410.105 | 229,948.367 |
| Las Animas | 39.329 | 157.316 | 383,722.547 | 67,815.809 |
| Lincoln | 93.537 | 255.841 | 396,918.070 | 127,150.152 |
| Logan | 47.774 | 191.096 | 287,643.432 | 80,730.989 |
| Mesa | 101.757 | 376.400 | 1,300,790.683 | 162,129.405 |
| Mineral | 25.086 | 72.597 | 57,175.906 | 6,506.957 |
| Moffat | 98.092 | 208.297 | 143,460.414 | 16,026.432 |
| Montezuma | 91.196 | 215.476 | 464,956.183 | 47,916.428 |
| Montrose | 50.231 | 147.362 | 399,989.600 | 28,668.204 |
| Morgan | 83.936 | 246.612 | 472,567.175 | 96,032.376 |
| Otero | 42.269 | 133.648 | 238,046.084 | 25,033.059 |
| Ouray | 37.406 | 78.116 | 163,052.493 | 10,876.925 |
| Park | 67.942 | 270.787 | 264,934.760 | 28,326.531 |
| Phillips | 0.000 | 0.000 | 0.000 | 0.000 |
| Pitkin | 16.310 | 48.064 | 278,800.960 | 10,673.999 |
| Prowers | 82.431 | 185.650 | 286,569.818 | 103,196.732 |
| Pueblo | 110.350 | 403.829 | 1,836,058.976 | 165,818.490 |
| Rio Blanco | 0.000 | 0.000 | 0.000 | 0.000 |
| Rio Grande | 53.876 | 116.404 | 279,484.300 | 22,482.195 |
| Routt | 54.196 | 123.969 | 326,738.823 | 18,114.259 |
| Saguache | 65.148 | 130.887 | 147,750.756 | 21,282.734 |
| San Juan | 30.292 | 62.479 | 67,226.846 | 7,619.681 |
| San Miguel | 0.000 | 0.000 | 0.000 | 0.000 |
| Sedgwick | 26.727 | 106.908 | 120,706.048 | 33,648.056 |
| Summit | 24.133 | 113.600 | 604,414.171 | 62,102.755 |
| Teller | 10.368 | 33.388 | 206,503.264 | 6,840.426 |
| Washington | 40.708 | 102.748 | 97,543.146 | 23,821.265 |
| Weld | 180.947 | 617.238 | 2,923,884.268 | 352,037.814 |
| Yuma | 0.000 | 0.000 | 0.000 | 0.000 |
| 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 system.