US Road Map

Developed to aid education and reference tasks, the US Road Map shows geographic boundaries and major locations in an easy format, useful for geographic reference, planning, and educational use. You can download this US Road Map for offline access using the Download Now option below the map.

US Road Map HD US Road Map PDF

About US Road Map

This road map of USA is showing US interstate highways, state highways with major cities and U.S. states.

The above US highways map shows Interstate highways as thick brown lines and U.S. state highways as thin light-brown lines. The map also marks the U.S. capital, Washington, D.C., along with all 50 states and their boundaries, state capitals, and major cities, as well as the international borders with Mexico and Canada. Alaska and Hawaii are shown in insets. Highway shield labels are shown for Interstate highways only.

US Road Network

The United States road system is one of the largest and most advanced in the world. US roads serve as the lifeblood of the US economy, the backbone of the supply chain, and are essential to everyday life. The US public road system spans more than 4.2 million miles, connecting states, cities, towns, and communities across the country.

The Interstate Highway System

The Interstate Highway System of the United States is probably the greatest public works project in history. It was established by the Federal-Aid Highway Act of 1956. The Interstate Highway System comprises over 48,000 miles of roads that make up a network of regulated access roads for high-speed travel. The interstate system links many of the country’s major population centers within a state, region, or even within the country. It enables fast travel across the country from coast to coast, facilitates freight transport, supports the country’s national defense, promotes economic growth, and makes travel within a region quick and convenient.

Federal, State, and Local Roads

Roads in the U.S. are managed by levels of government, from the federal to the local. The federal government is responsible for funding roads, for their construction and management, and on average more than 75% of roads are owned and managed by municipalities and counties. States manage all roads designated as highways or state routes. Thus, highways and major roads are typically well maintained, but community and local roads are less consistently maintained, with uneven funding between communities.

Economic Impact and Freight Transportation

America’s roads are the lifeblood of the US economy, accounting for 72% of all freight by weight – trillions of dollars worth of goods, products and materials moving through the nation’s transportation network every year. Billions of dollars worth of freight are moved annually by truck through America’s roads from ports, warehouses and distribution centers to the stores where consumers can purchase them. With every passing year America becomes more dependent on its roads. And, as these needs continue to evolve, the importance of maintaining efficient roads grows as they save money and facilitate the complex supply chain and just-in-time distribution systems in place today.

Road Quality, Maintenance, and Challenges

The U.S. road system is a complex and critical infrastructure that is bigger than most people imagine. It is made up of roads and highways owned by federal, state, and local governments. Because of the age of many of these roads, funding challenges and the need for rehabilitation and upgrades to many of the roads and bridges on the system are serious issues, according to the American Society of Civil Engineers. Filling potholes, reducing traffic congestion, and overcoming road and bridge closures are all essential to improving the performance of the surface transportation system. This report explores the options for constructing and maintaining smarter intelligent infrastructure, repairing and resurfacing roads, and rehabilitating and repairing bridges.

Smart Roads and Future Innovations

America's future roads are coming into focus. Whether it's smart traffic systems, electric vehicle charging corridors across the country, or connections between different modes of transportation infrastructure to create an intelligent network, roads are being developed with the future in mind. Federal funds are being used to create a robust EV charging infrastructure and intelligent transportation systems that help reduce traffic congestion and greenhouse gas emissions. Before long, autonomous vehicles will be gliding down these advanced roadways.

Tourism and Road Trips

Beyond economics, the U.S. road network holds cultural significance, especially through iconic road trips. Famous routes like Route 66 symbolize freedom and exploration, attracting millions of travelers each year. Long-distance road trips across multiple states highlight the diversity of landscapes, from deserts and mountains to coastlines and national parks, making the road network a key driver of domestic tourism.

Interstate Highways in the United States

America's primary high-way system is the Interstate Highway System. It connects principal cities and communities, as well as ports, airports, and a great many industrial centers. The Interstate system is one of the world's largest, comprising approximately 49,000 miles of roadways and facilitating the travel of millions of individuals daily.

History of the Interstate Highway System

The modern Interstate Highway System was conceived by President Dwight D. Eisenhower when he signed the Federal-Aid Highway Act of 1956. The Interstate was designed to be an efficient system to travel across the country by improving commerce, traveling for recreation, and to enhance our National Defense. He declared that the construction of the system would be done as quickly as possible and that it would be the best in the world. The actual construction began in the 50’s and continued into the 60’s and 70’s. By the end of the 60’s the Interstate System had become the way that most Americans traveled across state lines.

How Interstate Highways Are Numbered

Interstate highways are labeled in an organized and logical manner. The east-west freeways all have even numbers, while the north-south routes are assigned odd numbers. An example of an east-west route is Interstate 10 that travels across the southern part of the country. It begins on the west coast in California and ends on the east coast in Florida. In contrast, the Route along the East Coast is Interstate 95, which extends from the southern tip of Florida up through the eastern portion of the country and ends on the Canadian border in the state of Maine. The three-digit numbers such as Interstate 405 are designated for freeways that are a bypass around a city or are a interstate loop within a state. These are simply a continuation of an already existing interstate route.

Major Interstate Highways

Some of the most important interstate highways include the west- east span of Interstate 90 that runs over 3,000 miles from the Washington State and goes through Montana, North Dakota, South Dakota, Minnesota, Wisconsin, Michigan and ends in the state of Massachusetts; Interstate 95, the busiest highway in the country that runs along the east coast from Miami, Florida to Houlton, Maine; Interstate 10 that runs down the west- east middle section of the country that goes from the state of California and ends in the state of Florida; and Interstate 80 that spans the country from the west coast to the northeast part of the country.

Economic Importance

The Interstate Highway System supports the U.S. economy in many ways. It is an extremely vital link in the movement of products from the manufacturing plant, to the warehouse, to the retail store and then to the customer. This system supports not only interstate commerce but also tourism and business that is conducted in each of the states in the country. Many industries count on the Interstate Highway System for movement of their products to maintain their supply chain.

Interstate Highway Safety

Interstate highways have been developed with safety as a major design consideration. Controlling access to the highway, providing wide travel lanes and multiple lanes for high volumes of traffic, dividing the roadways to allow traffic to travel in opposite directions with no opportunity for head-on collisions, and using grade-separated interchanges to eliminate traffic conflicts at intersections all work to minimize the potential for traffic accidents. The federal and state transportation departments are constantly working to repair and upgrade the interstate system as well as to implement the latest traffic management tools to make interstate travel as safe as possible.

List of Interstate Highways

S.N.	Interstate Highway Number	Formed	Length in km	Length in mi
1	I-90	1956	4,988.55	3099.74
2	I-80	1956	4,666.44	2899.59
3	I-40	1957	4,114.46	2556.61
4	I-10	1957	3,959.53	2,460.34
5	I-70	1956	3,495.03	2171.71
6	I-95	1957	3,088.83	1919.31
7	I-75	1958	2,875.04	1786.47
8	I-94	1956	2,551.13	1585.2
9	I-35	1956	2,524.06	1568.38
10	I-20	1957	2,477.39	1539.38
11	I-15	1957	2,307.03	1,433.52
12	I-5	1956	2,222.97	1,381.29
13	I-25	1957	1,708.59	1061.67
14	I-55	1960	1,551.81	964.25
15	I-64	1961	1,550.64	963.52
16	I-69	1957	1,464.66	910.1
17	I-65	1958	1,427.97	887.3
18	I-81	1961	1,376.02	855.02
19	I-84	1980	1,238.58	769.62
20	I-29	1958	1,215.88	755.51
21	I-85	1958	1,071.90	666.05
22	I-44	1958	1,024.65	636.69
23	I-77	1958	981.86	610.1
24	I-49	1984	881.15	547.52
25	I-74	1974	871.65	541.62
26	I-57	1965	819.03	508.92
27	I-59	1960	716.53	445.23
28	I-76	1964	701	435.66
29	I-30	1957	590.24	366.76
30	I-8	1964	560.45	348.25
31	I-71	1959	556.14	345.57
32	I-79	1967	552.75	343.46
33	I-87	1957	536.7	333.49
34	I-26	1960	528.01	328.09
35	I-24	1962	509.13	316.36
36	I-39	1984	492.68	306.14
37	I-91	1958	467.31	290.37
38	I-45	1971	458.52	284.91
39	I-86	1999	408.81	254.02
40	I-84	1963	374.51	232.71
41	I-22	2012	325.44	202.22
42	I-96	1959	309.09	192.06
43	I-43	1981	308	191.55
44	I-89	1960	307.58	191.12
45	I-42	proposed	310	190
46	I-93	1957	305.69	189.95
47	I-76	1975	300.11	186.48
48	I-72	1970	288.54	179.29
49	I-41	2015	281.64	175
50	I-16	1966	268.45	166.81
51	I-78	1957	235.41	146.28
52	I-17	1961	234.85	145.93
53	I-82	1957	231.07	143.58
54	I-37	1959	230.14	143
55	I-88	1987	226.27	140.6
56	I-4	1959	212.92	132.30
57	I-27	1969	206.53	128.332
58	I-88	1968	189.5	117.75
59	I-68	1991	182.1	113.15
60	I-73	1997	162.7	101.1
61	I-99	1998	158.26	98.34
62	I-12	1967	137.74	85.59
63	I-83	1959	136.84	85.03
64	I-66	1961	122.76	76.28
65	I-19	1972	101.95	63.35
66	I-86	1980	101.15	62.85
67	I-11	2017	86.74	53.90
68	I-2	2013	75.32	46.8
69	I-42	2024	50.7	31.5
70	I-14	2017	40.39	25.10
71	I-97	1987	28.36	17.62
72	I-87	2017	20.76	12.9

United States Numbered Highways

Historical Foundation and Development

The United States Numbered Highway System is one of the most complete and important transportation networks in world history. Since it was built in 1926, it has changed American commerce, culture, and patterns of development. The American Association of State Highway Officials (AASHO) and state highway departments worked together to create this system. It was needed to standardize and organize the chaotic patchwork of named roads that had grown up naturally across the country during the early days of the automobile. The original system set aside 96 numbered routes that covered about 96,000 miles. This made a single system that would make it easier for people to travel and do business between states while still letting states control the building and upkeep of highways.

The numbering system followed a logical geographic pattern that is still used today. Odd-numbered highways generally run north-south, while even-numbered highways run east-west. Major roads were given single or double-digit numbers, with the most important ones getting the lowest numbers. US Route 1 goes from Maine to Florida along the Atlantic Coast. US Route 101 goes from California to Washington along the Pacific Coast. US Route 66, the system's crown jewel, became one of the most famous highways in American culture. It connected Chicago and Los Angeles over 2,448 miles of different landscapes and communities.

This numbering system replaced hundreds of named highways that made it hard for people and businesses to get around. Some of the most well-known named routes that were added to the new numbered system were the Lincoln Highway, Dixie Highway, and Yellowstone Trail. During World War II, this standardization was very important because it made it necessary for the government to move troops, equipment, and supplies quickly and safely. The numbered highway system made it easier to move troops and supplies quickly, which was a big part of the Allies' victory.

Current Infrastructure and Scale

The US Numbered Highway System now has about 157,724 miles of roads in all 50 states. This is a big increase from its original size, but it still follows the basic rules for how to organize the roads that were set up almost 100 years ago. There are 469 numbered routes in this huge network. Some of them are major national roads that carry hundreds of thousands of cars every day, while others are smaller routes that connect towns in rural areas. Building and keeping up the system's physical parts cost billions of dollars. Every year, the federal, state, and local transportation budgets have to pay a lot of money for things like rebuilding, improving, and maintaining roads.

The longest road in the US is US Route 20, which runs 3,365 miles from Boston, Massachusetts, to Newport, Oregon. In the current system, it is the longest route. This transcontinental highway goes through 12 states and is an important route for both passenger and freight travel. It also goes through big cities like Chicago, Cleveland, and Seattle. US Route 77 in Hawaii, on the other hand, is the smallest named route. It only goes 4.4 miles on the Big Island. This shows that the system can adapt to different populations and places.

One of the busiest non-interstate highways in the country is US Route 1 in northern New Jersey, which has more than 180,000 vehicles on it every day. This shows that the system is still important for transportation in the US. The Federal Highway Administration says that about 40% of all vehicle miles driven in the US are on US roads. This shows how important they are for the economy, for getting people to and from work, and for going on vacation. Every year, trucks on major US roads move billions of dollars' worth of goods. US Route 95 is an important part of the supply chain along the Eastern Seaboard. It connects major cities from Miami to the Canadian border.

Economic Impact and Commercial Significance

The US Numbered Highway System has had a huge effect on the economy, not just on transportation. It has changed the way businesses grow, tourism, and regional economic patterns in the 20th and 21st centuries. The American Road and Transportation Builders Association says that the highway system adds more than $6 trillion to the US economy every year by providing direct transportation services, moving freight, and making economic activities possible. This infrastructure directly and indirectly supports about 40 million jobs, from construction and maintenance workers to truck drivers, service station operators, and tourism industry workers whose jobs depend on smooth highway travel.

Freight transportation is a very important part of the economy. Trucks carry 71% of all freight tonnage in the United States, and a lot of it is on numbered highways. The American Trucking Associations says that the trucking industry makes more than $875 billion a year. A lot of this business happens on US numbered routes that connect ports, manufacturing centers, distribution centers, and retail stores. US Route 95 and other major highways make it easier for billions of dollars in freight to move between important economic areas. US Route 50 and US Route 80, on the other hand, make it easier for goods to get from Pacific ports to Eastern markets.

Tourism is another important part of the economy. Scenic US highways bring in millions of visitors each year and bring in billions of dollars in tourism revenue for local communities. US Route 1 along the California and Oregon coasts, US Route 163 through Monument Valley, and US Route 2 across Montana's Glacier National Park are all major tourist attractions that help local economies by providing lodging, food, fuel, and recreational services. The Federal Highway Administration runs the National Scenic Byways Program, which has named 181 routes that cover 29,000 miles. Many of these routes use numbered highways to show off America's natural and cultural heritage while helping communities that depend on tourism.

List of Numbered Highways or US State Highways

S.N.	Number	Length in mi	Length in km	Northern or Eastern Terminus	Southern or Western Terminus	Formed
1	US 1	2,369	3,813	Route 161 at the Fort Kent-Clair Border Crossing in Fort Kent, ME	Fleming Street in Key West, FL	1,926
2	US 2	2,112	3,399	I-75 in St. Ignace, MI	I-5/SR 529 in Everett, WA	1,926
3	US 2	460	740	I-95 in Houlton, ME	US 11 in Rouses Point, NY	1,926
4	US 3	273	439	Route 257 south of Chartierville, QC	Route 2A/Route 3 in Cambridge, MA	1,926
5	US 4	252.62	407	I-95/Blue Star Turnpike/Spaulding Turnpike/US 1 Byp./NH 16 in Portsmouth, NH	US 9/US 20 in East Greenbush, NY	1,926
6	US 5	300	480	Route 143 at the Canadian border in Derby Line, VT	I-91 in New Haven, CT	1,926
7	US 6	3,198.87	5,148	Route 6A in Provincetown, MA	US 395 in Bishop, CA	1,926
8	US 7	309	497	I-89 north of Highgate Springs, VT	I-95 in Norwalk, CT	1,926
9	US 8	281	452	US 2 in Norway, MI	I-35 in Forest Lake, MN	1,926
10	US 9	521	838	I-87 in Champlain, NY south of the Canadian border	US 13 at Laurel, DE	1,926
11	US 10	711	1,144	I-75/US 23 in Bay City, MI	I-94/US 52 in West Fargo, ND	1,926
12	US 11	1,645	2,647	Route 223 at the Rouses Point-Lacolle 223 Border Crossing in Rouses Point, NY	US 90 in New Orleans, LA	1,926
13	US 12	2,484	3,998	Cass Avenue in Detroit, MI	US 101 at Aberdeen, WA	1,926
14	US 13	526	847	US 1 in Falls Township, PA	I-95/I-295 north of Fayetteville, NC	1,926
15	US 14	1,398	2,250	US 41 in Chicago, IL	US 16/US 20 in Yellowstone National Park, WY	1,926
16	US 15	792	1,275	I-86/I-99/NY 17/NY 352 in Painted Post, NY	US 17 Alt. in Walterboro, SC	1,926
17	US 16	489	787	I-90/I-190/US 14/US 16 Truck in Rapid City, SD	US 14/US 20 in Yellowstone National Park, WY	1,926
18	US 17	1,189	1,914	US 11/US 50/US 522 in Winchester, VA	US 41 in Punta Gorda, FL	1,926
19	US 18	1,033	1,662	Lincoln Memorial Drive in Milwaukee, WI	I-25/US 20/US 26/US 87 in Orin, WY	1,926
20	US 19	1,386	2,231	US 20 in Erie, PA	US 41 in Memphis, FL	1,926
21	US 20	3,365	5,415	Yellowstone National Park in West Yellowstone, MTRoute 2 in Boston, MA	US 101 in Newport, ORYellowstone National Park, WY	1,926
22	US 21	393	632	I-81/US 52 in Wytheville, VA	Hunting Island State Park, SC	1,926
23	US 22	651	1,048	I-78/US 1-9/Route 21 in Newark, NJ	US 27/US 42/US 52/US 127 in Cincinnati, OH	1,926
24	US 23	1,444	2,324	I-75 in Mackinaw City, MI	US 1/US 17 in Jacksonville, FL	1,926
25	US 24	1,540	2,480	I-75 west of Clarkston, MI	I-70/US 6 north of Minturn, CO	1,926
26	US 25	750	1,210	US 42/US 127 at the Ohio state line in Covington, KY	US 17 in Brunswick, GA	1,926
27	US 26	1,485	2,390	I-80/N-61 in Ogallala, NE	US 101 south of Seaside, OR	1,926
28	US 27	1,364	2,195	I-69/US 24/US 30 at Fort Wayne, IN	US 1 at Miami, FL	1,926
29	US 29	1,036	1,667	MD 99 at Ellicott City, MD	US 90/US 98 at Pensacola, FL	1,926
30	US 30	3,073	4,946	Absecon Boulevard & Virginia Avenue in Atlantic City, NJ	US 101 in Astoria, OR	1,926
31	US 31	1,280	2,060	I-75 south of Mackinaw City, MI	US 90/US 98 in Spanish Fort, AL	1,926
32	US 33	703	1,131	US 20 at Elkhart, IN	US 250/SR 33 at Richmond, VA	1,937
33	US 34	1,122	1,806	IL 43 at Berwyn, IL	US 40 at Granby, CO	1,926
34	US 35	424	682	US 20 southeast of Michigan City, IN	I-64/CR 33 in Teays Valley, WV	1,934
35	US 36	1,414	2,276	US 250/SR 800 in Uhrichsville, OH	US 34 in Rocky Mountain National Park, CO	1,926
36	US 40	2,285.74	3,678.54	US 322 in Atlantic City, NJ	I-80/US 189 in Silver Summit, UT	1,926
37	US 41	2,006	3,228	Fort Wilkins State Park east of Copper Harbor, MI	US 1 in Miami Beach, FL	1,926
38	US 42	355	571	US 6/US 20/US 322/US 422 in Cleveland, OH	US 31E/US 60 in Louisville, KY	1,926
39	US 43	410	660	US 31/US 412 in Columbia, TN	US 90 in Prichard, AL	1,934
40	US 44	238	383	Route 3A in Plymouth, MA	US 209/NY 55 in Kerhonkson, NY	1,926
41	US 45	1,297	2,087	River & Ontonagon streets in Ontonagon, MI	US 98 at Mobile, AL	1,926
42	US 46	75.34	121.25	I-95/US 1-9 at the New York state line	I-80/Route 94 in Columbia, NJ	1,935
43	US 48	148	238	I-81/SR 55 at Strasburg, VA	I-79/US 33/US 119 at Weston, WV	2,002
44	US 49	516	830	US 62/AR 1/AR 139 at Piggott, AR	US 90 at Gulfport, MS	1,926
45	US 50	3,017	4,855	MD 528 in Ocean City, MD	I-80 in West Sacramento, CA	1,926
46	US 51	1,286	2,070	US 2 north of Hurley, WI	US 61 in LaPlace, LA	1,926
47	US 52	2,072	3,335	Line Street in Charleston, SC	Hwy 39 at the Canadian border in Portal, ND	1,926
48	US 53	403	649	Hwy 71 in Fort Frances, ON	US 14/US 61/WIS 16 at La Crosse, WI	1,926
49	US 54	1,197	1,926	I-72/US 36/IL 107 in Griggsville, IL	Loop 375 in El Paso, TX	1,926
50	US 56	640	1,030	US 71 at Kansas City, MO	I-25 BL/US 412/NM 21 at Springer, NM	1,957
51	US 57	98.095	157.869	I-35 southwest of Moore, TX	Fed. 57 at Piedras Negras, COA	1,970
52	US 58	509	819	US 60 in Virginia Beach, VA	US 25E at Cumberland Gap, TN	1,931
53	US 59	1,911	3,075	PTH 59 at Canadian border north of Lancaster, MN	Fed. 85D at the Mexican border at Laredo, TX	1,935
54	US 60	2,670	4,300	Harbour Point & Rudee Point Road in Virginia Beach, VA	I-10 southwest of Brenda, AZ	1,926
55	US 61	1,400	2,300	I-35 in Wyoming, MN	US 90 in New Orleans, LA	1,926
56	US 62	2,248	3,618	NY 104 south of the Canadian border in Niagara Falls, NY	US 85 at the Mexican border in El Paso, TX	1,930
57	US 63	1,286	2,070	US 2 west of Ashland, WI	I-20/US 167/LA 146 at Ruston, LA	1,926
58	US 64	2,326	3,743	US 158/NC 12 at Whalebone Junction, NC	US 160 at Teec Nos Pos, AZ	1,926
59	US 65	969	1,559	I-35 at Albert Lea, MN	US 425/LA 15 at Clayton, LA	1,926
60	US 67	1,560	2,510	US 52/IA 64 at Sabula, IA	Fed. 16 at the Mexican border in Presidio, TX	1,926
61	US 68	560	900	I-75/SR 15 in Findlay, OH	US 62 at Reidland, KY	1,926
62	US 69	1,136	1,828	MN 13 in Albert Lea, MN	US 96/US 287/SH 87 at Port Arthur, TX	1,926
63	US 70	2,385	3,838	Seashore Drive & School Drive in Atlantic, NC	US 60/SR 77 at Globe, AZ	1,926
64	US 71	1,532	2,466	Hwy 71 in Fort Frances, ON	US 190 in Krotz Springs, LA	1,926
65	US 72	432	695	US 41/US 76 in Chattanooga, TN	US 51/US 64/US 70/US 79 in Memphis, TN	1,926
66	US 73	112	180	US 75 in Dawson, NE	I-70/Kansas Turnpike/US 24/US 40/K-7 in Bonner Springs, KS	1,926
67	US 74	524	843	Lumina Avenue in Wrightsville Beach, NC	I-24/I-75 at Chattanooga, TN	1926
68	US 75	1,239	1,994	Canadian border at Noyes, MN	I-345/Spur 366 at Dallas, TX	1926
69	US 76	547	880	Water Street in Wrightsville Beach, NC	US 41/US 72 in Chattanooga, TN	1926
70	US 77	1,305	2,100	I-29 at Sioux City, IA	Fed. 101/Fed. 180 at the Mexican border in Brownsville, TX	1926
71	US 78	843.3	1,357.20	Line Street in Charleston, SC	I-57/US 67/AR 226 west of Cash, AR	1926
72	US 79	873	1,405	US 68/US 68 Bus./KY 80 in Russellville, KY	I-35 in Round Rock, TX	1935
73	US 80	1,032	1,661	SR 26 Butler Avenue Inlet Avenue Tybrisa Street in Tybee Island, GA	I-30/US 67 on the Dallas-Mesquite city line, TX	1926
74	US 81	1,234	1,986	I-29/PTH 75 at the Pembina-Emerson Border Crossing north of Pembina, ND	I-35W/US 287 at Fort Worth, TX	1926
75	US 82	1,680	2,700	I-95/US 17/SR 25/SR 520 at Brunswick, GA	US 54/US 70 at Alamogordo, NM	1932
76	US 83	1,894	3,048	PTH 83 at the Canadian border north of Westhope, ND	Fed. 101/Fed. 180 at the Mexican border in Brownsville, TX	1926
77	US 84	1,919	3,088	I-95/SR 38 east of Midway, GA	US 160 at Pagosa Springs, CO	1926
78	US 85	1,479	2,380	Highway 35 at the Canadian border north of Fortuna, ND	US 62 at the Stanton Street Bridge at the Mexican border in El Paso, TX	1926
79	US 87	2,005	3,227	US 2 at West Havre, MT	SH 238 in Port Lavaca, TX	1926
80	US 89	1,247	2,007	Yellowstone National Park, WYHighway 2 at the Canadian border north of Babb, MT	BL 40/US 180 in Flagstaff, AZYellowstone National Park, WY	1926
81	US 90	1,633	2,628	SR A1A in Jacksonville Beach, FL	I-10 BL in Van Horn, TX	1926
82	US 91	163	262	I-15 BL/US 26 in Idaho Falls, ID	I-15/I-84 in Brigham City, UT	1926
83	US 92	177	285	SR A1A in Daytona Beach, FL	US 19 Alt./SR 687 in St. Petersburg, FL	1926
84	US 93	1,346	2,166	Highway 93 at the Canadian border at the Port of Roosville north of Eureka, MT	US 60 in Wickenburg, AZ	1926
85	US 95	1,574	2,533	Highway 95 at the Canadian border in Eastport, ID	Calle 1 at the Mexican border in San Luis, AZ	1926
86	US 96	170	270	Future I-69/Future I-369/US 59/US 84 in Tenaha, TX	US 69/US 287/SH 87 in Port Arthur, TX	1939
87	US 97	663	1,067	Highway 97 at the Canadian border north of Oroville, WA	I-5 in Weed, CA	1926
88	US 98	939	1,511	SR A1A/SR 80 in Palm Beach, FL	US 84 in Bude, MS	1933
89	US 101	1,519	2,445	I-5 in Tumwater, WA	I-5/I-10 in Los Angeles, CA	1926
90	US 113	73	117	DE 1 in Milford, DE	US 13 in Pocomoke City, MD	1926
91	US 117	114	183	US 301 south of Wilson, NC	Port of Wilmington	1932
92	US 119	585	941	US 219 in Sandy Township, PA	US 25E in Pineville, KY	1926
93	US 121	112	180	I-64/I-77 in Beckley, WV	US 23 in Pound, VA	proposed
94	US 123	75	121	I-385 Bus. in Greenville, SC	US 23/US 441/SR 15/SR 365 east of Clarkesville, GA	1937
95	US 127	758	1,220	I-75 south of Grayling, MI	US 27 in Chattanooga, TN	1926
96	US 129	582	937	I-40 in Knoxville, TN	US 19/US 27 Alt./US 98 in Chiefland, FL	1926
97	US 130	83	134	US 1/Route 171 in New Brunswick, NJ	I-295/NJ Turnpike/US 40/Route 49 in Pennsville Township, NJ	1926
98	US 131	271	436	US 31 in Petoskey, MI	I-80/I-90/Indiana Toll Road/SR 13 in Middlebury, IN	1926
99	US 136	744	1,197	I-74/I-465 in Speedway, IN	US 6/US 34 in Edison, NE	1951
100	US 138	72	116	US 30 north of Big Springs, NE	US 6/SH 14 in Sterling, CO	1926
101	US 141	176	283	US 41/M-28 northeast of Covington, MI	I-43 in Bellevue, WI	1926
102	US 150	571	919	US 25/KY 1249 in Mount Vernon, KY	US 6 in Moline, IL	1926
103	US 151	337	542	I-43/WIS 42 in Manitowoc, WI	I-80 north of Williamsburg, IA	1926
104	US 158	347	558	US 64/NC 12 at Whalebone Junction, NC	US 64/US 601 in Mocksville, NC	1932
105	US 159	85	137	US 59 west of New Point, MO	US 59/K-4 Alt. in Nortonville, KS	1935
106	US 160	1,464	2,356	Future I-57/US 67/Route 158 southwest of Poplar Bluff, MO	US 89 west of Tuba City, AZ	1930
107	US 163	64	103	US 191 in Bluff, UT	US 160/BIA Route 591 in Kayenta, AZ	1971
108	US 165	412	663	US 70 in North Little Rock, AR	US 90 in Iowa, LA	1926
109	US 166	166	267	I-44/US 400 in Joplin, MO	US 81 in South Haven, KS	1926
110	US 167	499	803	US 62/US 412 in Ash Flat, AR	LA 14 Bus. in Abbeville, LA	1926
111	US 169	975	1,569	US 53 in Virginia, MN	US 64 in Tulsa, OK	1930
112	US 171	179	288	US 79/US 80/LA 3094 in Shreveport, LA	US 90/LA 14 in Lake Charles, LA	1926
113	US 175	114	183	US 69 in Jacksonville, TX	I-45 in Dallas, TX	1931
114	US 176	229	369	US 52 in Goose Creek, SC	US 25 Bus./NC 225 in Hendersonville, NC	1926
115	US 177	233	375	US 81 in South Haven, KS	US 70/SH 199 in Madill, OK	1927
116	US 178	237	381	US 78 northwest of Ridgeville, SC	US 64 west of Rosman, NC	1932
117	US 180	1,127	1,814	I-20 at Hudson Oaks, TX	SR 64 at Valle, AZ	1943
118	US 181	136.76	220.09	I-37 in San Antonio, TX	I-37/SH 35 in Corpus Christi, TX	1926
119	US 183	1,035	1,666	I-90 in Presho, SD	US 77 in Refugio, TX	1930
120	US 189	322	518	US 26/US 89/US 191 in Jackson, WY	I-15 in Provo, UT	1938
121	US 190	875	1,408	US 90 at Slidell, LA	I-10 at Iraan, TX	1926
122	US 191	1,657	2,667	Yellowstone National Park, WYHighway 4 at the Canadian border north of Loring, MT	SR 80 in Douglas, AZYellowstone National Park in West Yellowstone, MT	1926
123	US 192	75	121	SR A1A in Indialantic, FL	US 27 in Four Corners, FL	1926
124	US 195	95	153	I-90/US 2/US 395 in Spokane, WA	US 95 north of Lewiston, ID	1926
125	US 197	64	103	SR 14 in Dallesport, WA	US 97 southwest of Shaniko, OR	1952
126	US 199	80	130	I-5 in Grants Pass, OR	US 101 in Crescent City, CA	1926
127	US 201	157	253	SR 6/Route 173 at the Canadian border southeast of Saint-Theophile, QC	US 1/SR 24 Bus. in Brunswick, ME	1926
128	US 202	627	1,009	I-395/SR 9/SR 15 in Bangor, ME	US 13/US 40/DE 141 in New Castle, DE	1934
129	US 206	131	211	US 209 in Dingman Township, PA	US 30/Route 54 in Hammonton, NJ	1934
130	US 209	217	349	US 9W/NY 199 in Ulster, NY	PA 147 in Millersburg, PA	1926
131	US 211	61	98	US 15 Bus./US 29 Bus./US 211 Bus./ in Warrenton, VA	I-81/SR 211 in New Market, VA	1926
132	US 212	952	1,532	US 169/MN 62 in Eden Prairie, MN	Yellowstone National Park, WY	1926
133	US 218	319	513	I-35/US 14 at Owatonna, MN	US 136 at Keokuk, IA	1926
134	US 219	535	861	I-90/New York Thruway in West Seneca, NY	US 460 in Rich Creek, VA	1926
135	US 220	681	1,096	I-86/NY 17/Southern Tier Expressway at the PA-NY state line in South Waverly, PA	US 1 in Rockingham, NC	1926
136	US 221	734	1,181	US 29 Bus./US 460 Bus./US 501 Bus. in Lynchburg, VA	US 19/US 27 Alt./US 98/SR 55 in Perry, FL	1930
137	US 222	109	175	I-78/PA 222/PA 309 in Dorneyville, PA	US 1 in Conowingo, MD	1926
138	US 223	46.34	74.58	US 127 southeast of Somerset, MI	US 23/SR 51/SR 184 in Sylvania, OH	1930
139	US 224	287	462	US 422 Bus./PA 18 at New Castle, PA	US 24/SR 5/SR 9 at Huntington, IN	1933
140	US 231	912	1,468	US 41 at St. John, IN	6th Street in Panama City, FL	1926
141	US 250	514	827	US 360 in Richmond, VA	US 6 in Sandusky, OH	1926
142	US 258	217	349	SR 143 at Fort Monroe in Hampton, VA	US 17 Bus./NC 24 Bus. in Jacksonville, NC	1932
143	US 259	250	400	US 59/US 270 south of Heavener, OK	Future I-69/Future I-69 BL/US 59/US 59 Bus. in Nacogdoches, TX	1963
144	US 264	219	352	US 64 in Manns Harbor, NC	I-87/I-440/US 64/US 64 Bus. in Raleigh, NC	1932
145	US 266	43.09	69.35	US 64/SH-2 in Warner, OK	US 62/US 75 in Henryetta, OK	1926
146	US 270	643	1,035	I-530/US 65 at White Hall, AR	US 54/US 83 in Liberal, KS	1930
147	US 271	299	481	US 71 Bus./AR 255 in Fort Smith, AR	SH 31/SH 155 in Tyler, TX	1926
148	US 275	266	428	US 20/US 281 in O'Neill, NE	US 136 northwest of Rock Port, MO	1931
149	US 276	108	174	I-40 in Cove Creek, NC	I-185/I-385 southeast of Mauldin, SC	1932
150	US 277	633	1,019	I-44/US 62 in Newcastle, OK	US 83 in Carrizo Springs, TX	1928
151	US 278	1,077	1,733	US 278 Bus. in Hilton Head Island, SC	US 59/US 71 in Wickes, AR	1952
152	US 280	392	631	US 80/SR 26/SR 30 in Blitchton, GA	I-20/I-59/US 31 in Birmingham, AL	1954
153	US 281	1,875	3,018	ND 3/PTH 10 at the Canadian border north of Dunseith, ND	US 77 Bus./SH 48 in Brownsville, TX	1931
154	US 283	730	1,170	US 30 in Lexington, NE	US 87 northwest of Brady, TX	1931
155	US 285	835	1,344	I-25/US 87/SH 30 in Denver, CO	US 90 in Sanderson, TX	1934
156	US 287	1,791	2,882	Yellowstone National Park, WYUS 89 in Choteau, MT	US 69/US 96/SH 87 in Port Arthur, TXYellowstone National Park in West Yellowstone, MT	1934
157	US 290	276	444	I-610 in Houston, TX	I-10 southeast of Segovia, TX	1926
158	US 301	1,111	1,788	DE 1 in Biddles Corner, DE	US 41 in Sarasota, FL	1932
159	US 302	171	275	I-295/US 1/SR 100 in Portland, ME	US 2 in Montpelier, VT	1935
160	US 310	108	174	I-90 BL/S-532 in Laurel, MT	US 14/US 16/US 20/WYO 789 in Greybull, WY	1926
161	US 311	62.4	100.4	US 58/US 58 Bus. in Bachelors Hall, VA	US 52/NC 8 in Winston-Salem, NC	1926
162	US 319	318	512	US 1/SR 4/SR 78 in Wadley, GA	US 98 in Apalachicola, FL	1933
163	US 321	526	847	I-40/SR 73/SR 95 northwest of Lenoir City, TN	US 17 in Hardeeville, SC	1930
164	US 322	494	795	US 40 Atlantic Avenue & Pacific Avenue in Atlantic City, NJ	US 6/US 20 at Public Square in Cleveland, OH	1926
165	US 331	151	243	US 80/US 82/SR 6/SR 8/SR 9/SR 21 in Montgomery, AL	US 98/SR 30/SR 83 southeast of Santa Rosa Beach, FL	1953
166	US 340	156	251	US 15/US 40/Jefferson Street in Frederick, MD	US 11 in Greenville, VA	1926
167	US 341	226	364	US 41/SR 7/SR 18 in Barnesville, GA	US 17/SR 25/SR 27 in Brunswick, GA	1926
168	US 350	80	130	US 50 in La Junta, CO	US 160 northeast of Trinidad, CO	1926
169	US 360	223	359	SR 644 in Reedville, VA	US 58 Bus./SR 293/SR 360 in Danville, VA	1933
170	US 371	246	396	US 59/US 70/US 71/AR 41 in DE Queen, AR	I-49/LA 177 at Evelyn, LA	1994
171	US 377	478	769	I-44/SH-99 in Stroud, OK	US 90/US 277 in Del Rio, TX	1930
172	US 378	234	377	US 501 Bus. in Conway, SC	US 78/SR 10/SR 17/SR 47 in Washington, GA	1952
173	US 380	673	1,083	I-30/US 67/US 69 in Greenville, TX	I-25/US 85 in San Antonio, NM	1932
174	US 385	1,206	1,941	US 85 in Deadwood, SD	Big Bend National Park, TX	1958
175	US 395	1,305	2,100	Highway 395 at the Canadian border north of Laurier, WA	I-15 in Hesperia, CA	1926
176	US 400	477	768	I-44/US 166 in Joplin, MO	US 50/US 385 in Granada, CO	1994
177	US 401	257	414	I-85/US 1 north of Wise, NC	US 76 Bus./US 521 in Sumter, SC	1957
178	US 411	314	505	US 25W/US 70 in Newport, TN	US 78 in Leeds, AL	1934
179	US 412	1,131	1,820	I-65 at Columbia, TN	US 56/NM 21 at Springer, NM	1982
180	US 421	941	1,514	US 20 in Michigan City, IN	NC 211/Fort Fisher-Southport Ferry at Fort Fisher, NC	1930
181	US 422	273	439	US 219 northwest of Ebensburg, PAI-76/US 202 in King of Prussia, PA	US 6/US 20/SR 8/SR 14/SR 43/SR 87 at Public Square in Cleveland, OHUS 322/PA 39 in Hershey, PA	1926
182	US 425	219	352	I-530/US 63/US 65/US 65B/US 79/AR 190 in Pine Bluff, AR	US 61/US 84 in Natchez, MS	1989
183	US 431	556	895	US 60/KY 2831 in Owensboro, KY	US 231/US 231 Bus./US 431 Bus./SR 210 in Dothan, AL	1954
184	US 441	936	1,506	US 25W/SR 116 in Rocky Top, TN	US 41 in Miami, FL	1926
185	US 460	655	1,054	US 60 in Norfolk, VA	US 60/US 421 in Frankfort, KY	1933
186	US 491	198	319	US 191 in Monticello, UT	I-40/NM 602 in Gallup, NM	2003
187	US 501	355	571	US 60 in Buena Vista, VA	US 17 Bus. in Myrtle Beach, SC	1926
188	US 521	177	285	I-485 in Charlotte, NC	US 17 in Georgetown, SC	1932
189	US 522	308	496	US 11/US 15 in Selinsgrove, PA	US 60 in Powhatan, VA	1926
190	US 550	302	486	US 50 at Montrose, CO	I-25/US 85/NM 165 in Bernalillo, NM	1926
191	US 601	319	513	US 52 in Mount Airy, NC	US 321 northwest of Tarboro, SC	1926
192	US 641	165	266	US 60/KY 91 in Marion, KY	US 64 south of Clifton, TN	1955
193	US 701	172	277	US 301/NC 96 in Four Oaks, NC	US 17/US 17 Alt. in Georgetown, SC	1932
194	US 730	41.78	67.24	US 12 south of Wallula, WA	I-84/US 30 east of Boardman, OR	1926

FAQs about US Highways

What is the longest interstate highway in the United States?

Interstate 90 (I-90) is the longest interstate highway in the United States. It stretches approximately 3,020 miles (4,860 kilometers) from Seattle, Washington, to Boston, Massachusetts. The route crosses 13 states and passes through major cities, mountains, plains, and urban areas, making it one of the country’s most important transportation corridors.

What is the shortest interstate highway in the United States?

Interstate 878 (I-878) in New York is the shortest signed interstate highway in the United States, measuring less than one mile in length. Despite its short distance, it serves as an important connector within the highway network in the New York City area.

What is the difference between an interstate highway and a U.S. highway?

Interstate highways are controlled-access roads designed for high-speed travel, featuring limited entry and exit points and no traffic signals. U.S. highways are older routes that often pass directly through towns and cities and may include intersections, traffic lights, and lower speed limits. Both systems are important, but interstate highways are generally faster for long-distance travel.

Which state has the most interstate highway miles?

Texas has the largest number of interstate highway miles of any state. Due to its large geographic size and extensive transportation network, Texas contains more than 3,200 miles of interstate highways that connect major cities, ports, and economic centers throughout the state.

Are interstate highways funded by the federal government?

Interstate highways are funded through a partnership between the federal government and state governments. Much of the funding comes from the Federal Highway Trust Fund, which is supported primarily by federal fuel taxes. States also contribute significant funding for construction, maintenance, and improvements.

Why are interstate highways important for the U.S. economy?

Interstate highways are critical to the movement of goods and services throughout the country. They allow trucks to transport products efficiently between manufacturers, warehouses, ports, and retailers. The system also supports tourism, business travel, and daily commuting, making it one of the most important pieces of infrastructure in the United States.