what's the speed limit in the usa
Speed limits in the United States
The highest speed limits are generally 70 mph ( 113 km / h ) on the West Coast and the inland eastern states , 75 -- 80 mph ( 121 -- 129 km / h ) in inland western states , along with Arkansas and Louisiana , and 65 -- 70 mph ( 105 -- 113 km / h ) on the Eastern Seaboard . Alaska , Connecticut , Delaware , Massachusetts , New Jersey , New York , Puerto Rico , Rhode Island , and Vermont have a maximum limit of 65 mph ( 105 km / h ) , and Hawaii has a maximum limit of 60 mph ( 97 km / h ) . Washington , D.C. and the U.S. Virgin Islands have a maximum speed limit of 55 mph ( 89 km / h ) , and Guam and American Samoa have speed limits of 45 mph ( 72 km / h ) . Two territories in the U.S. Minor Outlying Islands have their own speed limits : 40 mph ( 64 km / h ) in Wake Island , and 15 mph ( 24 km / h ) in Midway Atoll . Unusual for any state east of the Mississippi River , much of I - 95 in Maine north of Bangor allows up to 75 mph ( 121 km / h ) , and the same is true for up to 600 miles of freeways in Michigan . Portions of the Idaho , Montana , Nevada , South Dakota , Texas , Utah , and Wyoming road networks have 80 mph ( 129 km / h ) posted limits . The highest posted speed limit in the entire country can be found on the Texas State Highway 130 , and it is 85 mph ( 137 km / h ) . 
The highest speed limits are generally 70 mph ( 113 km / h ) on the West Coast and the inland eastern states , 75 -- 80 mph ( 121 -- 129 km / h ) in inland western states , along with Arkansas and Louisiana , and 65 -- 70 mph ( 105 -- 113 km / h ) on the Eastern Seaboard . Alaska , Connecticut , Delaware , Massachusetts , New Jersey , New York , Puerto Rico , Rhode Island , and Vermont have a maximum limit of 65 mph ( 105 km / h ) , and Hawaii has a maximum limit of 60 mph ( 97 km / h ) . Washington , D.C. and the U.S. Virgin Islands have a maximum speed limit of 55 mph ( 89 km / h ) , and Guam and American Samoa have speed limits of 45 mph ( 72 km / h ) . Two territories in the U.S. Minor Outlying Islands have their own speed limits : 40 mph ( 64 km / h ) in Wake Island , and 15 mph ( 24 km / h ) in Midway Atoll . Unusual for any state east of the Mississippi River , much of I - 95 in Maine north of Bangor allows up to 75 mph ( 121 km / h ) , and the same is true for up to 600 miles of freeways in Michigan . Portions of the Idaho , Montana , Nevada , South Dakota , Texas , Utah , and Wyoming road networks have 80 mph ( 129 km / h ) posted limits . The highest posted speed limit in the entire country can be found on the Texas State Highway 130 , and it is 85 mph ( 137 km / h ) .
The highest posted speed limit in the entire country can be found on the Texas State Highway 130, and it is 85 mph. Unusual  speed limits are 40 mph in Wake Island, and 15 mph in Midway Atoll .
Minor Outlying Islands have their own speed limits : 40 mph ( 64 km / h ) in Wake Island , and 15 mph ( 24 km / h ) in Midway Atoll . Unusual for any state east of the Mississippi River , much of I - 95 in Maine north of Bangor allows up to 75 mph ( 121 km / h ) , and the same is true for up to 600 miles of freeways in Michigan . The highest posted speed limit in the entire country can be found on the Texas State Highway 130 , and it is 85 mph ( 137 km / h ) .
The highest speed limits are generally 70 mph on the West Coast and the inland eastern states, 75 -- 80 mph in inland western states, along with Arkansas and Louisiana, and 65 -- 70 mph on the Eastern Seaboard, with particular variations to particular region such as 85 mph, the highest posted speed limit in the entire country found on the Texas State Highway 130, 40 mph in Wake Island, and 15 mph in Midway Atoll.
The highest speed limits are generally 70 mph ( 113 km / h ) on the West Coast and the inland eastern states , 75 -- 80 mph ( 121 -- 129 km / h ) in inland western states , along with Arkansas and Louisiana , and 65 -- 70 mph ( 105 -- 113 km / h ) on the Eastern Seaboard . Minor Outlying Islands have their own speed limits : 40 mph ( 64 km / h ) in Wake Island , and 15 mph ( 24 km / h ) in Midway Atoll . The highest posted speed limit in the entire country can be found on the Texas State Highway 130 , and it is 85 mph ( 137 km / h ) .