
Highway shield for U.S. Route 20

U.S. Highways in the 48 Contiguous United States
U.S. Route Locations U.S. Highways Blanding Cassatt-2
The following is a list of primary United States Numbered Highways in the United States Numbered Highway System. It includes U.S. Numbered Highways both past and present, with the former shaded in gray. Three-digit subsidiaries are grouped with their one- or two-digit parent. The list is based on American Association of State Highway and Transportation Officials (AASHTO) definitions, with up-to-date details on extensions and truncations, though distances are as of 1989. Discrepancies with state specifications are noted.
There are several U.S. Highways that exist entirely within one state. Since the current policy on numbering and designating U.S. Highways was written in 1991, AASHTO has been in the process of eliminating all intrastate U.S. Highways less than 300 miles (480 km) in length, "as rapidly as the State Highway Department and the Standing Committee on Highways of the American Association of State Highway and Transportation Officials can reach agreement with reference thereto"; new additions to the system must therefore serve more than one state.
List[]
Number | Miles | Kilometers | Southern or western terminus | Northern or eastern terminus |
Formed | Removed | States | Auxiliary
routes |
Notes |
---|---|---|---|---|---|---|---|---|---|
![]() |
2,369 | 3,813 | FL 5 in Key West, FL | NB 161 at the Canadian border in Fort Kent, ME |
1926 | Current | 14 states +DC: FL, GA, SC, NC, VA, MD, PA, NJ, NY, CT, RI, MA, NH, and ME |
Travels along the east coast of the United States. Mostly parallels Interstate 95. Travels through more states (including DC) than any other numbered routes in the system, though I-95 goes through more states than US 1. Longest north-south highway in the system. | |
![]() |
2,112 | 3,399 | I-5/WA 529 in Everett, WA | I-75 in St. Ignace, MI | 1926 | Current | 7 states: WA, ID,MT, ND, MN, WI, and MI | Western segment. | |
460 | 740 | US 11 in Rouses Point, NY | I-95 in Houlton, ME |
1926 | Current | 4 states: NY, VT, NH, and ME | Eastern Segment. | ||
![]() |
3,198 | 5,148 | US 395 in Bishop, CA |
MA 6A in Provincetown, MA |
1926 | Current | 14 states: CA, NV, UT, CO, NE, IA, IL, IN, OH, PA, NY, CT, RI, and MA |
|
Longest U.S. Numbered Route who's number is not a multiple of 10. Longest single-digit route. |
![]() |
711 | 1,144 | I-94/Bus. I-94/ US 52 in Fargo, ND |
I-75/Bus. I-75/ US 23/ M-25 in Bay City, MI |
1926 | Current | 4 states: ND, MN, WI, and MI |
|
|
US 12 | 2,484 | US 101 in Aberdeen, WA |
Cass Avenue in Detroit, MI | 1926 | Current | 10 states: WA, ID, MT, ND, SD, MN, WI, |
|||
US 25 | 573 | US 17 in Brunswick, GA | US 25E / US 25W / US 70 / US 321 in Newport, TN | ||||||
177 | US 25E / US 25W in North Corbin, KY | US 42/US 127 at the Ohio line in Covington, KY |
Sintopia[]
In popular culture[]
See also[]
- List of auxiliary U.S. Highways
- List of intrastate U.S. Highways
- List of Interstate Highways
- United States Numbered Highway System
- Interstate Highway System
- List of hypothetical U.S. Highways
![]() ![]() |
---|
1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 • 26 • 27 • 28 • 29 • 30 • 31 • 32 • 33 • 34 • 35 • 36 • 37 • 38 • 39 • 40 • 41 • 42 • 43 • 44 • 45 • 46 • 47 • 48 (CA • WV–MD • WV–VA) • 49 • 50 • 51 • 52 • 53 • 54 • 55 • 56 • 57 • 58 • 59 • 60 • 61 • 62 • 63 • 64 • 65 • 66 • 67 • 68 • 69 • 70 • 71 • 72 • 73 • 74 • 75 • 76 • 77 • 78 • 79 • 80 • 81 • 82 • 83 • 84 • 85 • 86 • 87 • 88 • 89 • 90 • 91 • 92 • 93 • 94 • 95 • 96 (1926–1939 • 1939–Current) • 97 • 98 • 99 • 101 • 163 • 400 • 412 • 425 |
Primary routes • Auxiliary routes • Divided routes • Special routes • Intrastate routes • Former routes • Intrastate • Hypothetical (Auxiliary • Special) |
Major U.S Routes are written in bold. Former U.S. Routes that are no longer part of the system are written in italic. |
---|