| Rhode Island | 265 | 265 | 2,046 | 2,046 | 2,311 | 4,069 | ||
| South Carolina | 716 | 1,351 | 2,067 | 2,500 | 2,500 | 4,567 | 52,533 | |
| South Dakota | 225 | 225 | 2,033 | 2,033 | 2,258 | 91,945 | ||
| Tennessee | 671 | 671 | 4,370 | 4,370 | 5,041 | 69,767 | ||
| Texas | 2,512 | 2,512 | 25,795 | 25,795 | 28,307 | 224,937 | ||
| Utah | 593 | 593 | 3,062 | 3,062 | 3,655 | 31,050 | ||
| Vermont | 165 | 165 | 656 | 656 | 821 | 13,785 | ||
| Virginia | 804 | 443 | 1,247 | 3,775 | 3,775 | 5,022 | 54,240 | |
| Washington | 326 | 138 | 464 | 6,160 | 6,160 | 6,624 | 59,042 | |
| West Virginia | 444 | 127 | 571 | 2,390 | 2,390 | 2,961 | 36,199 | |
| Wisconsin | 1,254 | 1,254 | 561 | 7,424 | 7,985 | 9,239 | 95,930 | |
| Wyoming | 118 | 118 | 738 | 738 | 856 | 27,200 | ||
| District of Columbia | 1,189 | 1,189 | 1,189 | 1,189 | ||||
| Total | 33,233 | 5,787 | 39,020 | 11,578 | 303,072 | 314,650 | 353,670 | 3,366,190 |
1 Includes mileage of county roads under State control in Alabama (4 counties), Delaware, North Carolina, Virginia (all but 2 counties), and West Virginia; 6,611 miles designated as farm-to-market systemic Louisiana; State-aid systemic Maine; and 19 miles of State-aid roads in Montana.
2 Includes mileage of State park, forest, institutional, toll, and other roads, rural and municipal, that are not a part of the State or local highway systems.
3 Includes local roads designated as State-aid mileage a follows: Illinois, 19,983 miles; Minnesota, 15,634 miles; and Vermont, 2,550 miles.
4 Roads not on county, town, or township systems. The mileage shown for California, Colorado, and Wyoming has not been classified by administrative system.
5 Includes only the mileage of roads not forming a part of the State or local highway system.
6 Municipal extensions of county, town, and township roads cannot be segregated for all States.
7 Mileage previously reported here is now part of the State primary and local road systems.
8 Toll roads are included as follows: Colorado, Denver-Boulder Turnpike, 17 miles; Connecticut, Merritt, and Wilbur Cross Parkways, 67 miles; Florida, Buccaneer Trail, 15 miles; Georgia, Brunswick-St. Simon Highway, 11 miles; Maine Turnpike, 45 miles; New Hampshire Turnpike, 15 miles; New Jersey Turnpike, 118 miles, New York county parkways, 26 miles, State parkways, 13 miles; and the New York State Thruway, 80 miles; Oklahoma, Turner Turnpike, 88 miles; Pennsylvania Turnpike system, 328 miles.
Source: Department of Commerce, Bureau of Public Roads.
