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Alaska
55
Texas
75
Idaho
70
Nevada
70
Oklahoma
70
South Dakota
70
Arkansas
65
Wyoming
70
Colorado
65
Florida
65
Georgia
65
Iowa
65
Kansas
65
Louisiana
65
Mississippi
65
Missouri
65
Nebraska
65
North Dakota
65
Oregon
65
Tennessee
65
Utah
65
Maine
60
Minnesota
60
Washington
60
Connecticut
55
Delaware
55
Illinois
55
Indiana
55
Kentucky
55
Maryland
55
Massachusetts
55
Michigan
55
New Hampshire
55
New Jersey
55
New Mexico
55
New York
55
North Carolina
55
Ohio
55
Pennsylvania
55
Rhode Island
55
South Carolina
55
Virginia
55
West Virginia
55
Wisconsin
55
Vermont
50
Hawaii
45
District of Columbia
25

Speed Limits by State 2024

Speed Limits by State 2024

Speed limits are restrictions on the minimum and maximum speeds vehicles may travel on a given stretch of road. Speed limits are designated by signs and are used in many countries. In the United States, speed limits are used to protect drivers and regulate unruly or dangerous behavior on the roads.

There is no guarantee that posting speed limits has any effect on driver behaviors, as most drivers will ultimately travel at the speed that they feel the most comfortable going. However, law enforcement does monitor the speed of motorists and their failure to adhere to posted speed limits can result in fines and, depending on how fast a driver is going, arrest.

Speed limits vary between states and are often different for rural interstates, urban interstates, and other types of roads. Montana has different speed limits for day and night on certain types of roads. Some states, such as California and Arkansas, have different speed limits for trucks and cars.

There are three main categories of roads: arterial, collector, and local. Arterial roads have higher speeds and fewer access points, such as on- and off-ramps. Collector roads have high speeds and are balanced to have more access points. Local roads have lower speeds and more access points, such as intersections and cross streets. The difference between these three types of streets is the reason why there are different speed limits. Roads with fewer travelers and fewer vehicles attempting to cross one another can sustain higher speeds, while roads with more volume of travelers and have more bikers or pedestrians need to have lower speeds.

Texas has the highest speed limits in the United States. Rural interstates have a speed limit of 85 miles per hour while urban interstates both have a speed limit of 75 miles per hour. Other roads that are not residential are posted at 75 miles per hour as well.

Hawaii has the overall lowest speed limit in the United States. Rural freeways have a maximum speed limit of 60 miles per hour. Urban interstates in Hawaii have a speed limit of as low as 50 miles per hour. Please note that Hawaii speed limits vary between islands. It is crucial to read all road signage to avoid speeding.

Speed Limits by State 2024

Notes:
- The District of Columbia lacks Interstate highways and limited access roads. As such, data for those categories does not exist.
- As stated by the IIHS, data has been prepared for general information purposes only. It is not guaranteed to be current and should be independently verified. Do not rely on it when considering how a law may apply to your circumstances.

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State
Urban Interstates
Rural Interstates
Other Roads
Other Limited Access Roads
Additional Details
Texas7575; 80 or 85 on specified segments of road7575
Sections of I-10 and I-20 in West Texas and sections of Highway 45 in Travis County have a speed lim...
Montana6580 (70 for trucks)70 (day), 65 (night)70 (day), 65 (night)
Idaho75; 80 on specified segments of road 65 everywhere for trucks75; 80 on specified segments of road 70 everywhere for trucks7070
In Idaho, the speed limit may be increased to 80 mph on specific segments of highway on the basis of...
Nevada65807070
Oklahoma7075; 80 on specified segments of road7070
In Oklahoma, a speed limit of 80 mph may be posted on portions of the turnpike if approved by the Ok...
South Dakota80807070
The Transportation Commission may establish a maximum speed limit of less than 80 upon any highway o...
Wyoming75; 80 on specified segments of road75; 80 on specified segments of road7070
In Wyoming, the speed limit may be increased to 80 mph on specific segments of highway on the basis ...
Arizona657565trucks: 6565
California65 (cars), 55 (trucks)70 (cars), 55 (trucks)65trucks: 5570 (cars), 55 (trucks)
Arkansas6575 (70 for trucks)6575 (70 for trucks)
Colorado65756565
Florida65706570
Georgia70706565
Iowa55706570
Kansas75756575
Louisiana70756570
Mississippi70706570
Missouri60706570
Nebraska70756570
North Dakota75756570
Oregon5565 (70 on specified segments ) for cars, 55 (65 on specified segments) for trucks6565
Tennessee70706570
Utah7075; 80 on specified segments of road6575
In Utah, the speed limit may be increased beyond 75 mph on any freeway or limited access highway on ...
Maine75756075
Minnesota65706065
Washington6070 (75 on specified segments) for cars; 60 everywhere for trucks6060
In Washington State, maximum speed limits on highways or portions of highways may be posted as high ...
Alaska55655565
Connecticut55655565
Delaware55655565
Illinois55705565
The Illinois law allows Cook, DuPage, Kane, Lake, Madison, McHenry, St. Clair and Will Counties to o...
Indiana5570 (cars), 65 (trucks)5560
Kentucky6565 (70 on specified segments)5565
In Kentucky, the speed limit may be increased to 70 mph on specific segments of highway on the basis...
Maryland70705570
Massachusetts65655565
Michigan7070 (75 on specified segments) for cars; 65 everywhere for trucks5570
New Hampshire6565 (70 on specified segments)5555
2013 New Hampshire House Bill 146 raised the speed limit from 65 to 70 mph on the portion of I-93 fr...
New Jersey55655565
New Mexico75755565
New York65655565
North Carolina70705570
Ohio65705570
Pennsylvania70705570
Rhode Island55655555
South Carolina70705560
Virginia70705565
West Virginia55705565
Wisconsin70705570
Vermont55655050
Hawaii60604555
In Hawaii, the maximum speed limit is established by county ordinance or by the director of transpor...
District of Columbia55n/a25n/a
showing: 50 rows

Speed Limits by State 2024

Sources