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US 20

Highway shield for U.S. Route 20

U.S

U.S. Highways in the 48 Contiguous United States

U.S._Route_Locations_U.S._Highways_Blanding_Cassatt-2

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
US 1
US 1
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.
US 2
US 2
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.
US 6
US 6
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.
US 10
US 10
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
  • 110
  • 210
  • 310
  • 410
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[]

US Blank (CA)
U.S. Highway System
US Blank
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647 • 48 (CAWV–MDWV–VA) • 4950515253545556575859606162636465666768697071727374757677787980818283848586878889909192939495 • 96 (1926–19391939–Current) • 979899101163400412425
Primary routesAuxiliary routesDivided routesSpecial routesIntrastate routesFormer routesIntrastateHypothetical (AuxiliarySpecial)
Major U.S Routes are written in bold. Former U.S. Routes that are no longer part of the system are written in italic.
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