Speed Limits by State

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Table

Introduction

Speed limits in the United States can vary significantly from state to state, leading to a diverse landscape of regulations across the country. The maximum and posted speed limits in urban interstates serve as key indicators of the speed restrictions imposed by each state. These limits can differ due to a variety of factors, including geographical considerations, traffic patterns, and safety concerns.

One of the primary reasons for the variation in speed limits is the diverse nature of road infrastructure and conditions across different states. For instance, states with vast rural areas and long stretches of highways, such as Montana and Nevada, tend to have higher maximum speed limits. These states have relatively lower population densities and less congested roadways, which may contribute to the decision to set higher speed limits.

Population density and urbanization also play a significant role in determining speed limits. States with densely populated urban areas, such as California and New York, often have lower speed limits due to the higher risks associated with higher speeds in congested environments. Safety concerns and the need to mitigate accidents and ensure pedestrian safety are key factors considered when setting lower speed limits in urban interstates.

Furthermore, states may adopt different approaches to balancing safety and efficiency on their roadways. Factors such as historical accident data, engineering studies, and public opinion can influence the decision-making process for speed limit regulations. Additionally, state legislatures and transportation departments work in tandem to review and update speed limits based on changing conditions, advancements in technology, and evolving traffic patterns.

US Speed Limits

#StateMaximum Speed LimitPosted Speed Limit in Urban Interstates
1Montana80 mph65 mph
2Nevada80 mph65 mph
3South Dakota80 mph80 mph
4Arizona75 mph65 mph
5Arkansas75 mph65 mph
6Colorado75 mph65 mph
7Idaho75 mph75 mph
8Kansas75 mph75 mph
9Louisiana75 mph70 mph
10Maine75 mph75 mph
11Nebraska75 mph70 mph
12New Mexico75 mph75 mph
13North Dakota75 mph75 mph
14Oklahoma75 mph70 mph
15Texas75 mph75 mph
16Utah75 mph65 mph
17Wyoming75 mph75 mph
18Alabama70 mph65 mph
19California70 mph65 mph
20Florida70 mph65 mph
21Georgia70 mph70 mph
22Illinois70 mph55 mph
23Indiana70 mph55 mph
24Iowa70 mph55 mph
25Maryland70 mph70 mph
26Michigan70 mph70 mph
27Minnesota70 mph65 mph
28Mississippi70 mph70 mph
29Missouri70 mph60 mph
30North Carolina70 mph70 mph
31Ohio70 mph65 mph
32Pennsylvania70 mph70 mph
33South Carolina70 mph70 mph
34Tennessee70 mph70 mph
35Virginia70 mph70 mph
36Washington70 mph60 mph
37West Virginia70 mph55 mph
38Wisconsin70 mph70 mph
39Alaska65 mph55 mph
40Connecticut65 mph55 mph
41Delaware65 mph55 mph
42Kentucky65 mph65 mph
43Massachusetts65 mph65 mph
44New Hampshire65 mph65 mph
45New Jersey65 mph55 mph
46New York65 mph65 mph
47Oregon65 mph55 mph
48Rhode Island65 mph55 mph
49Vermont65 mph55 mph
50Hawaii60 mph60 mph

Highest Speed Limit in USA

There are three states that share the highest speed limit in the US – Montana, Nevada, South Dakota all hold the top spot for having the highest speed limit in the USA, with a maximum speed limit of 80 mph.

The three states with the highest speed limit are :

1. Montana – 80 mph
2. Nevada – 80 mph
3. South Dakota – 80 mph

Speed Limit by State

Alabama

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Maximum Speed Limit

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70 mph

Ranked in the US

#18

Posted Speed Limit in Urban Interstates

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65 mph

Ranked in the US

#22

Alabama's maximum speed limit is 70 mph, providing drivers with a moderate speed for traveling across its diverse terrain, including coastal areas, forests, and urban centers.

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Alaska

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65 mph

Ranked in the US

#39

Posted Speed Limit in Urban Interstates

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55 mph

Ranked in the US

#40

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

Arizona

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Maximum Speed Limit

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75 mph

Ranked in the US

#4

Posted Speed Limit in Urban Interstates

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65 mph

Ranked in the US

#23

Arizona has one of the highest speed limits in the USA, with a maximum speed limit of 75 mph, striking a balance between efficiency and safety on its highways, ensuring smoother travel for residents and visitors alike.

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

Arkansas

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Maximum Speed Limit

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75 mph

Ranked in the US

#5

Posted Speed Limit in Urban Interstates

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65 mph

Ranked in the US

#24

With a maximum speed limit of 75 mph, Arkansas emphasizes moderate speed, prioritizing safety while accommodating the need for efficient transportation across the state.

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

California

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Maximum Speed Limit

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70 mph

Ranked in the US

#19

Posted Speed Limit in Urban Interstates

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65 mph

Ranked in the US

#25

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

Colorado

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Maximum Speed Limit

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75 mph

Ranked in the US

#6

Posted Speed Limit in Urban Interstates

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65 mph

Ranked in the US

#26

Colorado has one of the highest speed limits in the USA, as it sets its maximum speed limit at 75 mph, providing a balance between efficient travel and ensuring the safety of drivers navigating its diverse terrain, including mountainous regions.

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

Connecticut

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Maximum Speed Limit

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65 mph

Ranked in the US

#40

Posted Speed Limit in Urban Interstates

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55 mph

Ranked in the US

#41

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

Delaware

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Maximum Speed Limit

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65 mph

Ranked in the US

#41

Posted Speed Limit in Urban Interstates

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55 mph

Ranked in the US

#42

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

Florida

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Maximum Speed Limit

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70 mph

Ranked in the US

#20

Posted Speed Limit in Urban Interstates

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65 mph

Ranked in the US

#27

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

Georgia

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70 mph

Ranked in the US

#21

Posted Speed Limit in Urban Interstates

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70 mph

Ranked in the US

#9

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

Hawaii

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Maximum Speed Limit

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60 mph

Ranked in the US

#50

Posted Speed Limit in Urban Interstates

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60 mph

Ranked in the US

#37

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

Idaho

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Maximum Speed Limit

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75 mph

Ranked in the US

#7

Posted Speed Limit in Urban Interstates

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75 mph

Ranked in the US

#2

Idaho has one of the highest speed limits in the USA, as it aligns its maximum speed limit with 75 mph, accommodating the needs of drivers traversing its scenic highways while maintaining an emphasis on safety and responsible driving.

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

Illinois

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70 mph

Ranked in the US

#22

Posted Speed Limit in Urban Interstates

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55 mph

Ranked in the US

#44

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

Indiana

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Maximum Speed Limit

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70 mph

Ranked in the US

#23

Posted Speed Limit in Urban Interstates

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55 mph

Ranked in the US

#45

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

Iowa

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Maximum Speed Limit

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70 mph

Ranked in the US

#24

Posted Speed Limit in Urban Interstates

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55 mph

Ranked in the US

#46

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

Kansas

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Maximum Speed Limit

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75 mph

Ranked in the US

#8

Posted Speed Limit in Urban Interstates

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75 mph

Ranked in the US

#3

Kansas has one of the highest speed limits in the USA, as it matches the maximum speed limit of 75 mph, facilitating smooth travel across its plains and open landscapes, promoting efficient transportation within the state.

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

Kentucky

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65 mph

Ranked in the US

#42

Posted Speed Limit in Urban Interstates

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65 mph

Ranked in the US

#28

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

Louisiana

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Maximum Speed Limit

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75 mph

Ranked in the US

#9

Posted Speed Limit in Urban Interstates

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70 mph

Ranked in the US

#10

With a maximum speed limit of 75 mph, Louisiana aims to provide a reasonable balance between speed and safety on its highways, ensuring the well-being of its drivers and passengers.

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Posted Speed Limit in Urban Interstates

Maine

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Maximum Speed Limit

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75 mph

Ranked in the US

#10

Posted Speed Limit in Urban Interstates

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75 mph

Ranked in the US

#4

Maine has one of the highest speed limits in the US, with a maximum speed limit of 75 mph, offering a balance between efficient travel and safety on its highways, catering to both residents and tourists.

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

Maryland

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70 mph

Ranked in the US

#25

Posted Speed Limit in Urban Interstates

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70 mph

Ranked in the US

#11

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

Massachusetts

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Maximum Speed Limit

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65 mph

Ranked in the US

#43

Posted Speed Limit in Urban Interstates

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65 mph

Ranked in the US

#29

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

Michigan

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Maximum Speed Limit

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70 mph

Ranked in the US

#26

Posted Speed Limit in Urban Interstates

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70 mph

Ranked in the US

#12

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

Minnesota

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Maximum Speed Limit

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70 mph

Ranked in the US

#27

Posted Speed Limit in Urban Interstates

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65 mph

Ranked in the US

#30

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

Mississippi

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Maximum Speed Limit

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70 mph

Ranked in the US

#28

Posted Speed Limit in Urban Interstates

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70 mph

Ranked in the US

#13

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

Missouri

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70 mph

Ranked in the US

#29

Posted Speed Limit in Urban Interstates

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60 mph

Ranked in the US

#38

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

Montana

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Maximum Speed Limit

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80 mph

Ranked in the US

#1

Posted Speed Limit in Urban Interstates

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65 mph

Ranked in the US

#31

With the highest speed limit in the USA, Montana has a maximum speed limit of 80 mph, allowing drivers to traverse its extensive highways and enjoy the scenic landscapes with a sense of freedom.

Maximum Speed Limit

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Nebraska

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75 mph

Ranked in the US

#11

Posted Speed Limit in Urban Interstates

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70 mph

Ranked in the US

#14

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

Nevada

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Maximum Speed Limit

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80 mph

Ranked in the US

#2

Posted Speed Limit in Urban Interstates

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65 mph

Ranked in the US

#32

Nevada shares the highest speed limit in America with Montana and South Dakota, with a maximum speed limit of 80 mph, providing efficient travel through its expansive desert highways, making it an appealing state for those looking to cover long distances.

Maximum Speed Limit

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New Hampshire

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65 mph

Ranked in the US

#44

Posted Speed Limit in Urban Interstates

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65 mph

Ranked in the US

#33

Maximum Speed Limit

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New Jersey

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65 mph

Ranked in the US

#45

Posted Speed Limit in Urban Interstates

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55 mph

Ranked in the US

#47

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

New Mexico

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75 mph

Ranked in the US

#12

Posted Speed Limit in Urban Interstates

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75 mph

Ranked in the US

#5

New Mexico has one of the highest speed limits in the US, as it sets its maximum speed limit at 75 mph, providing drivers with a balanced speed for traveling through its diverse landscapes, including desert regions and mountainous areas.

Maximum Speed Limit

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New York

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65 mph

Ranked in the US

#46

Posted Speed Limit in Urban Interstates

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65 mph

Ranked in the US

#34

Maximum Speed Limit

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North Carolina

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70 mph

Ranked in the US

#30

Posted Speed Limit in Urban Interstates

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70 mph

Ranked in the US

#15

Maximum Speed Limit

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North Dakota

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75 mph

Ranked in the US

#13

Posted Speed Limit in Urban Interstates

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75 mph

Ranked in the US

#6

North Dakota has one of the highest speed limits in America, aligns with a maximum speed limit of 75 mph, allowing drivers to navigate its vast plains and rural areas with efficiency while maintaining safety on its roadways.

Maximum Speed Limit

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Ohio

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70 mph

Ranked in the US

#31

Posted Speed Limit in Urban Interstates

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65 mph

Ranked in the US

#35

Maximum Speed Limit

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Oklahoma

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75 mph

Ranked in the US

#14

Posted Speed Limit in Urban Interstates

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70 mph

Ranked in the US

#16

Oklahoma has one of the highest speed limits in America, as it maintains a maximum speed limit of 75 mph, striking a balance between facilitating swift travel across its highways and ensuring the well-being of its drivers and passengers.

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

Oregon

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65 mph

Ranked in the US

#47

Posted Speed Limit in Urban Interstates

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55 mph

Ranked in the US

#48

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

Pennsylvania

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70 mph

Ranked in the US

#32

Posted Speed Limit in Urban Interstates

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70 mph

Ranked in the US

#17

Maximum Speed Limit

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Rhode Island

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65 mph

Ranked in the US

#48

Posted Speed Limit in Urban Interstates

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55 mph

Ranked in the US

#49

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

South Carolina

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Maximum Speed Limit

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70 mph

Ranked in the US

#33

Posted Speed Limit in Urban Interstates

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70 mph

Ranked in the US

#18

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

South Dakota

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Maximum Speed Limit

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80 mph

Ranked in the US

#3

Posted Speed Limit in Urban Interstates

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80 mph

Ranked in the US

#1

South Dakota shares the highest speed limit in the US with Nevada and Montana, at the maximum speed limit of 80 mph, allowing drivers to navigate its open roads and appreciate the beauty of the state while maintaining a steady pace.

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

Tennessee

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70 mph

Ranked in the US

#34

Posted Speed Limit in Urban Interstates

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70 mph

Ranked in the US

#19

Maximum Speed Limit

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Texas

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75 mph

Ranked in the US

#15

Posted Speed Limit in Urban Interstates

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75 mph

Ranked in the US

#7

The speed limit on rural interstates in Texas ranges from 75 to 85 mph, with specific segments allowing speeds of 80 or 85 mph.

Maximum Speed Limit

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Utah

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75 mph

Ranked in the US

#16

Posted Speed Limit in Urban Interstates

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65 mph

Ranked in the US

#36

Utah sets its maximum speed limit at 75 mph, accommodating drivers who traverse its scenic landscapes and facilitating smooth travel between its natural wonders and urban centers.

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

Vermont

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Maximum Speed Limit

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65 mph

Ranked in the US

#49

Posted Speed Limit in Urban Interstates

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55 mph

Ranked in the US

#50

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

Virginia

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70 mph

Ranked in the US

#35

Posted Speed Limit in Urban Interstates

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70 mph

Ranked in the US

#20

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

Washington

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70 mph

Ranked in the US

#36

Posted Speed Limit in Urban Interstates

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60 mph

Ranked in the US

#39

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

West Virginia

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70 mph

Ranked in the US

#37

Posted Speed Limit in Urban Interstates

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55 mph

Ranked in the US

#51

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

Wisconsin

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70 mph

Ranked in the US

#38

Posted Speed Limit in Urban Interstates

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70 mph

Ranked in the US

#21

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

Wyoming

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75 mph

Ranked in the US

#17

Posted Speed Limit in Urban Interstates

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75 mph

Ranked in the US

#8

Wyoming adopts a maximum speed limit of 75 mph, allowing drivers to experience the state's breathtaking vistas while maintaining a reasonable speed to ensure safety on its highways.

Maximum Speed Limit

Posted Speed Limit in Urban Interstates

FAQs

What is the highest speed limit in the US ?

The highest speed limit in the US is 80 mph.

What is the maximum speed limit on most highways ?

The maximum speed limit on most highways in the US is typically 70 mph.

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