Denton County recorded 1,281 reported crashes, 546 injured people, and eight traffic deaths during September 2026, according to our analysis of Texas Department of Transportation CRIS records processed through October 19, 2026.
The City of Denton had the most reported crashes, followed by Lewisville. I-35E had the highest individual roadway-label count, while failure to control speed, driver inattention, and unsafe lane changes were the leading specific contributing factors.
For someone injured in a September motor vehicle accident, the consequences may continue long after the wreck. Medical treatment, missed work, vehicle damage, and insurance requests can create substantial disruption.
The Wooley Law Firm represents people injured in car, truck, and commercial vehicle collisions throughout Denton County, including Denton, Lewisville, Flower Mound, Carrollton, The Colony, and surrounding communities.
September 2026 Denton County Crash Statistics
From September 1 through September 30, the supplied Denton County records show:
1,281 reported crashes
2,696 units involved
3,267 people involved
546 injured people
36 suspected serious injuries
Eight deaths in eight fatal crashes
That averages approximately 43 reported crashes and 18 injured people per day.
“People involved” includes people who were not injured. Suspected serious injuries are included within the overall injury total and should not be added to it again.
These figures cover Denton County. They are not exclusively City of Denton statistics.
Denton and Lewisville Had the Most Reported September Crashes
Within the Denton County-filtered records, the City of Denton recorded:
333 crashes
130 injured people
Five suspected serious injuries
Two deaths in two fatal crashes
Denton accounted for approximately 26% of the county’s reported crashes.
Lewisville ranked second with 244 crashes. Together, Denton and Lewisville accounted for 577 crashes, approximately 45% of the county total.
The ten cities with the most reported crashes were:
Denton: 333 crashes.
Lewisville: 244 crashes.
Carrollton: 76 crashes.
Flower Mound: 73 crashes.
The Colony: 71 crashes.
Frisco: 64 crashes.
Corinth: 54 crashes.
Little Elm: 47 crashes.
Northlake: 33 crashes.
Fort Worth: 32 crashes.
An additional 76 crashes were recorded outside city limits.
Other city totals included 25 crashes in Hickory Creek, 17 each in Sanger and Dallas, and 15 in Cross Roads.
For cities extending across county lines, these figures include only crashes returned by the Denton County query. They do not necessarily represent the entire city.
Raw totals also do not establish that one community is inherently more dangerous than another. Population, traffic volume, roadway mileage, and reporting practices can affect crash counts.
Which Denton County Roads Had the Most September Wrecks?
I-35E had the highest individual roadway-label count in the September records, with 208 crashes—approximately 16.2% of the county total.
Leading roadway and route labels included:
I-35E: 208 crashes.
US-380: 55 crashes.
I-35: 41 crashes.
Business SH-121H: 36 crashes.
SH-121: 33 crashes.
US-377: 32 crashes.
FM-423: 29 crashes.
FM-407: 27 crashes.
I-35W: 26 crashes.
Loop 288: 21 crashes.
Other recorded labels included SH-114 and FM-1171 with 20 crashes each, along with North Josey Lane and FM-156 with 19 each.
The records list I-35, I-35E, and I-35W separately. Business SH-121H and SH-121 are also separate categories.
These figures preserve recorded labels rather than automatically combining alternate names, frontage roads, business routes, or related corridors.
A high raw total does not establish the highest crash risk per mile traveled. That comparison would require traffic-volume and roadway-length information.
Most Common Contributing Factors in September Denton County Crashes
Failure to control speed appeared more frequently than any other contributing factor in the supplied records.
The leading specific factors were:
Failure to control speed: 302 crashes.
Driver inattention: 177 crashes.
Unsafe lane changes: 123 crashes.
Failure to yield while turning left: 106 crashes.
Failure to yield at a stop sign: 67 crashes.
Under the influence of alcohol: 54 crashes.
Failure to drive in a single lane: 51 crashes.
Failure to yield from a private drive: 47 crashes.
Backing without safety: 41 crashes.
Disregarding a traffic signal: 40 crashes.
Another 145 crashes included the category “Other—explain in narrative.” Identifying the specific conduct in those cases requires reviewing the individual reports.
A crash may list multiple contributing factors. These counts overlap and should not be added together as separate collisions.
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Failure to Control Speed Was Listed in Nearly One-Quarter of Crashes
Failure to control speed appeared in 302 of the 1,281 crashes, approximately 23.6%.
That classification does not automatically mean a driver exceeded the posted speed limit. The report narrative and other evidence are needed to understand the circumstances, including whether the driver encountered slowing or stopped traffic.
Inattention Does Not Automatically Establish Texting
Driver inattention appeared in 177 crashes.
That category alone does not identify what distracted the driver or establish cellphone use. Statements, recordings, and other available evidence may help explain what happened.
Unsafe Lane Changes Can Lead to Disputed Claims
Unsafe lane changes appeared in 123 crashes.
These collisions can become disputed when both drivers claim they remained in their lane. Vehicle damage, dash-camera footage, nearby surveillance recordings, and independent witnesses may help establish which vehicle moved and how the impact occurred.
Our guide to lane-change crashes and “he said, she said” insurance disputes explains how evidence may help resolve conflicting accounts.
A Reported Factor Is One Part of the Investigation
A crash-report notation can help an investigation, but it is not a final legal determination of responsibility.
An attorney can review the report alongside photographs, recordings, witness statements, and other evidence to evaluate the collision.
Denton County Recorded 102 Commercial Vehicle Crashes in September
The September records identify 102 crashes involving commercial motor vehicles, with:
25 injured people
Four suspected serious injuries
One death in one fatal crash
CMV-involved crashes represented approximately 8% of all reported Denton County crashes during the month.
The CMV category is broader than 18-wheelers and can include other vehicles classified as commercial motor vehicles. The flag establishes involvement, not that the commercial driver caused the wreck.
A commercial truck investigation may require evidence beyond the initial police report, including:
Available onboard video.
Electronic vehicle data.
Driver logs.
Dispatch communications.
Inspection and maintenance records.
Vehicle ownership and company records.
A Denton truck accident lawyer can evaluate the evidence, potentially responsible parties, and available insurance coverage.
Still Receiving Treatment After a September Wreck?
A person injured in September may still be attending appointments or learning how the injuries affect work and daily activities.
The timing of an injury claim depends on factors such as:
Whether responsibility is disputed.
Whether the injuries and losses can be evaluated.
Whether additional treatment is recommended.
Whether multiple drivers or companies were involved.
What insurance coverage applies.
Whether necessary records and evidence are available.
An early settlement offer does not establish that all losses have been considered. Before signing a final release, understand which claims it resolves and how it affects your ability to seek additional compensation.
You can consult an attorney while treatment continues. You do not have to wait until every medical appointment is complete to discuss evidence and insurance issues.
What Should You Preserve After a Denton County Car or Truck Wreck?
Even if several weeks have passed, organize the evidence you have and identify information that may still be available.
Useful materials may include:
The crash report number and investigating agency.
Original photographs and videos.
Witness names and contact information.
Medical records, bills, and treatment instructions.
Prescription and related expense receipts.
Vehicle repair or total-loss documents.
Records of missed work.
Insurance correspondence and proposed settlement documents.
Our guide explains how to obtain a Texas Peace Officer’s Crash Report after a Dallas–Fort Worth collision.
Preserve dash-camera recordings in their original format when possible. Tell your attorney about nearby businesses or witnesses who may have footage or information.
Photographs of visible injuries can supplement medical records. Our article explains why photographs of bruises, cuts, and swelling matter after a truck wreck.
Necessary medical care comes first. Do not delay treatment to collect photographs or other evidence.
What If an Insurance Company Has Already Contacted You?
An adjuster may request a recorded statement, medical authorization, or signed release.
Understand who is requesting the information, what is being requested, and how the documents may affect your claim. Keep copies of correspondence and accurately explain what happened.
Our guide to insurance company calls after a car or truck wreck discusses common requests and issues to consider.
The Wooley Law Firm can investigate the collision, review injury documentation, identify available coverage, and address disputed responsibility or settlement terms.
Frequently Asked Questions About September Denton County Crashes
How many crashes occurred in Denton County in September 2026?
The supplied CRIS export shows 1,281 reported crashes from September 1 through September 30, 2026.
Which city had the most crashes?
Denton had the most crashes in the county-filtered dataset, with 333, followed by Lewisville with 244.
How many people were injured or killed?
The records show 546 injured people, including 36 suspected serious injuries, and eight deaths in eight fatal crashes.
Which road had the most reported crashes?
I-35E had the highest individual roadway-label count, with 208 crashes. These raw totals are not traffic-adjusted risk rankings.
What was the most common contributing factor?
Failure to control speed appeared in 302 crashes, followed by driver inattention in 177 and unsafe lane changes in 123.
How many commercial vehicle crashes occurred?
The records identify 102 CMV-involved crashes, with 25 injured people, including four suspected serious injuries, and one death.
Injured in a September Denton County Car or Truck Wreck?
The Wooley Law Firm represents people injured in car, 18-wheeler, and other commercial vehicle collisions throughout Denton County.
If your wreck happened in Denton, Lewisville, Carrollton, Flower Mound, The Colony, Frisco, Little Elm, Corinth, Northlake, or another Denton County community, our firm can review the facts and explain your options.
Call (214) 699-6524 for a free consultation. You don’t pay unless we win. You can also contact The Wooley Law Firm online.
Data Sources and Methodology
This analysis uses a TxDOT CRIS query export filtered to Denton County and crash dates September 1–30, 2026, containing records processed through October 19, 2026. TxDOT maintains reportable crash data submitted by law enforcement and makes public data available through CRIS Query.
The export contains 1,281 unique crash IDs. Injury and death totals count people. Fatal crashes count collisions with at least one recorded death. Suspected serious injuries are included within overall injuries.
CMV totals include records marked “Yes” in the Commercial Motor Vehicle Flag field. Contributing-factor counts represent crashes listing each factor, with multiple factors possible in one collision.
City figures retain the Denton County filter. Roadway figures use recorded labels without automatically combining alternate names or related routes.
These provisional figures may differ from earlier publications or later queries. They are not adjusted for population or traffic volume and do not independently establish fault. The analysis and conclusions are those of The Wooley Law Firm, not TxDOT.
This article is for general informational purposes only and is not legal advice. Reading it does not create an attorney-client relationship. Every case is different, and past results do not guarantee a similar outcome.
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Andrew J. Wooley
Personal Injury Attorney
Andrew J. Wooley is a dedicated personal injury attorney based in Dallas, Texas. He focuses on helping accident victims recover fair compensation for their injuries. With a commitment to personalized service, Andrew works directly with each client to understand their unique situation and fight for their rights.
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