Speed Limits by State 2026: U.S. Map and Table

Speed limits vary by state, roadway type, and local posting. This guide compares the highest posted speed limits across the United States, then breaks the data down by rural interstates, urban interstates, limited-access roads, and other roads.

Last updated: May 2026

Sources: Speed limit data is based on the IIHS Maximum Posted Speed Limits table. General context is based on the FHWA Speed Limit Setting Handbook.

Find Your State

Jump to a state in the table below to view exact limits by road type:

Speed Limits by State Table

The table below shows maximum posted speed limits by state and road type. These are statewide maximums and special segment limits, not a replacement for posted signs, local ordinances, school-zone signs, or work-zone speed limits.

What the Table Columns Mean

Highest posted limit means the highest speed limit available somewhere in the state, not the speed limit on every road.

Rural interstates are interstate highways outside urban areas. These are often where states post their highest limits.

Urban interstates are interstate highways through cities and urbanized areas. These are often lower than rural interstate limits because of congestion, ramps, curves, lane changes, and nearby development.

Other limited-access roads include freeways, expressways, and divided roads that are not necessarily part of the Interstate Highway System.

Other roads include roads outside the limited-access category. These can include state highways, rural highways, and other non-freeway roads.

A posted speed limit can be higher or lower than a state’s default limit. FHWA explains that statutory speed limits are default limits for classes of roads, while posted non-statutory limits are set for specific road sections and may be higher or lower than the default based on agency authority and engineering judgment.

States With the Highest Speed Limits

85 mph: Texas

Texas has the highest posted speed limit in the country. A segment of State Highway 130 has a posted speed limit of 85 mph. Texas also allows 80 mph on specified segments, including parts of I-10 and I-20 in West Texas.

80 mph: Western and Plains States

Several states allow 80 mph on some highways or interstate segments. These include Idaho, Montana, Nevada, North Dakota, Oklahoma, South Dakota, Utah, and Wyoming. In many cases, the 80 mph limit applies only to specified road segments, not every highway in the state.

75 mph: Common in Rural Highway States

States such as Arizona, Colorado, Kansas, Louisiana, Maine, Nebraska, New Mexico, and Texas commonly reach 75 mph on rural interstates or other high-speed roads.

65–70 mph: Common in Many Eastern and Urban States

Many states top out at 65 or 70 mph. This is especially common in states with denser development, more urban traffic, shorter travel distances, or older road networks.

Why Speed Limits Vary by State

Speed limits vary because every road is different. Agencies consider factors such as roadway design, rural or urban context, number of lanes, curves, sight distance, driveway density, pedestrian and bicycle activity, crash history, traffic volume, and observed operating speeds.

FHWA’s speed-limit-setting guidance explains that posted non-statutory speed limits are established for specific road sections and may be higher or lower than statutory default limits. The same guidance says engineering studies can consider land-use context, pedestrian and bicycle activity, crash history, intersection spacing, driveway density, roadway geometry, roadside conditions, functional classification, traffic volume, and observed speeds.

Speed Limit Signs and Posted Limits

A speed limit sign is a regulatory sign. It tells drivers the maximum legal speed for that specific road section, unless conditions require a slower speed.

For public roads, the speed posted on the sign should match the limit established by the responsible agency. For private roads, HOAs, campuses, warehouses, and parking lots, speed limit signs are often used to communicate property rules and encourage safer driving.

Common speed limit sign uses include public streets, residential communities, school zones, parking lots, private roads, construction zones, industrial sites, campuses, apartment complexes, and HOA communities.

Speed Limits on Private Roads and Parking Lots

Private properties often use speed limit signs even when the road is not part of the public highway system. A shopping center, apartment complex, HOA, warehouse, or school campus may post 5 mph, 10 mph, 15 mph, or 25 mph signs to control vehicle speed and improve safety.

Private-property speed signs should be easy to see, placed where drivers naturally look, and sized appropriately for the environment. A low-speed parking lot may use smaller signs than a public roadway, but larger signs are often better where visibility is limited or drivers approach from a distance.

For public roads or site roadways open to public travel, always check the MUTCD, state requirements, and local agency standards.

Frequently Asked Questions

What state has the highest speed limit?

Texas has the highest posted speed limit in the United States. A segment of Texas State Highway 130 has a posted speed limit of 85 mph.

Are speed limits the same on every road in a state?

No. Speed limits vary by road type, location, engineering study, local rule, and posted sign. A state may allow 75 mph on some rural interstates but lower limits on urban interstates, two-lane roads, city streets, work zones, and school zones.

What does “highest posted speed limit” mean?

It means the highest speed limit posted anywhere in that state. It does not mean every road in the state has that speed limit.

Do trucks have the same speed limits as cars?

Not always. Some states have separate truck speed limits. For example, California lists a 55 mph truck limit across multiple road categories, while other states have truck limits only on certain road types.

Are speed limits lower in cities?

Often, yes. Urban interstate limits are frequently lower than rural interstate limits because city roadways usually have more ramps, traffic, lane changes, curves, and conflict points.

Can a posted speed limit be lower than the state maximum?

Yes. A state maximum is not the same thing as the speed limit on every road. A road authority may post a lower speed based on roadway design, traffic, safety, local law, or an engineering study.

Can HOAs or private properties post speed limit signs?

Yes. HOAs, apartment communities, campuses, warehouses, parking lots, and private roads commonly use speed limit signs to communicate property rules. For roads open to public travel, check MUTCD and local requirements before ordering or installing signs.

Final Takeaway

State speed limits are useful for comparison, but the posted sign is what matters on the road. A statewide maximum does not mean every road in that state allows that speed. Always follow the speed limit posted for the specific roadway, and remember that work zones, school zones, parking lots, and private roads may have much lower limits.