Dallas has a 30 mph default speed limit on city streets, the standard Texas prima facie limit for urban districts. School zones drop to 20 mph during posted hours, while freeways such as I-35E, US-75, and I-635 run 60 to 70 mph.
Dallas speed limits at a glance
| Road type | Limit |
|---|---|
| City streets (default) | 30 mph (48 kph) |
| Residential / school zones | 30 mph (48 kph) |
| Major roads / arterials | 40 mph (64 kph) |
| Highways through the city | 60-70 |
About speed limits in Dallas
Dallas applies the Texas default of 30 mph on most residential and city streets, the statutory prima facie limit for urban areas. This 30 mph rule is the presumed limit anywhere a street is not otherwise signed, covering the bulk of neighborhood roads. Because it is a prima facie limit, it is treated as the rule unless a lower or higher limit is posted after a traffic-engineering study. Major arterials across Dallas are commonly posted higher, often 35 to 45 mph, based on those studies.
Dallas has moved to lower speeds on some of its fastest urban corridors for safety. TxDOT installed 65 mph signs on U.S. 75 / Central Expressway from Mockingbird Lane to the Woodall Rodgers Freeway downtown after the Dallas City Council approved dropping the limit from 70 mph. The city also operates a large network of AI-powered traffic cameras, over 600 pole-mounted units, but these are used mainly for license-plate reading and crime investigations, not automated speed enforcement.
Residential streets default to 30 mph, and school zones drop to 20 mph during posted hours. Texas bans automated photo enforcement: a 2019 state law prohibits cities from operating red-light and photographic speed cameras, and Dallas does not issue automated speeding tickets. Dallas police have publicly discussed advocating to reverse that ban to allow speed cameras, but as of 2026 no automated speeding citations are issued in the city.
Freeways carry the region's highest limits. I-35E, I-30, I-635 (LBJ Freeway), and the Dallas North Tollway typically run 60 to 70 mph, with limits dropping toward 60 to 65 mph on congested downtown-approach segments such as Central Expressway. All freeway enforcement is done by officers and Texas DPS troopers, since photo speed enforcement is not permitted under state law.
Enforcement
Dallas relies on officer enforcement. Dallas police and Texas DPS troopers make traffic stops using radar and LIDAR, and there is no automated speed-camera ticketing because Texas bans photographic traffic enforcement. The city's 600-plus AI traffic cameras are used for license-plate reading and investigations, not speeding tickets.
Tolerance
With no speed cameras, Dallas has no fixed automated threshold. Officer stops are discretionary, and while drivers commonly travel a few miles per hour over on arterials and freeways, any amount above the posted limit can legally result in a citation.
Speeding fines in Dallas
Texas speeding fines are set locally, so amounts vary. Typical Dallas citations run from roughly $150 up to a maximum around $300 with court costs for higher speeds, and school-zone violations add extra fees. Fines climb with speed, and going 25 mph or more over can disqualify a driver from a defensive-driving course to dismiss the ticket.
Frequently asked questions
What is the speed limit in Dallas?
The default speed limit on most Dallas streets is 30 mph, the standard Texas urban limit. School zones drop to 20 mph during posted hours, and freeways such as I-35E, US-75, and I-635 run 60 to 70 mph.
Why did the speed limit drop on Central Expressway?
The Dallas City Council approved lowering U.S. 75 / Central Expressway from 70 to 65 mph for safety, and TxDOT installed the new 65 mph signs from Mockingbird Lane to the Woodall Rodgers Freeway downtown.
Are there speed cameras in Dallas?
No. Texas banned automated photo enforcement under a 2019 state law, so Dallas does not mail speeding tickets from cameras. The city's 600-plus AI traffic cameras are used for license-plate reading and investigations, not speed enforcement.
Are there higher limits on Dallas highways?
Yes. City streets are largely 30 mph, but freeways including I-35E, I-30, I-635, and the Dallas North Tollway run 60 to 70 mph, dropping toward 60 to 65 mph on congested downtown-approach segments.
More Texas speed limits
- Texas speed limit — statewide interstate, highway, and city limits.
- Houston speed limit — city defaults, school zones, and camera enforcement.
- San Antonio speed limit — city defaults, school zones, and camera enforcement.
Related tools
- Convert MPH to KPH — convert any speed reading between units.
- Car speed test — verify your speedometer accuracy.
- Live GPS speedometer — see your actual speed in the browser.
- Stopping distance calculator — how far you need to brake from each speed.
- US speed limits overview — federal background and national patterns.