How Often Do Motorcycle Accidents Happen in Los Angeles?

Los Angeles, a city synonymous with sprawling freeways, endless sunshine, and a vibrant culture, is also a haven for motorcycle enthusiasts. The year-round riding weather, iconic scenic routes like Mulholland Drive and Pacific Coast Highway, and the practical appeal of filtering through congested traffic all make motorcycling an attractive choice for hundreds of thousands of Southern California residents. However, this idyllic picture is shadowed by a grim reality: Los Angeles is one of the most dangerous places in the United States to ride a motorcycle. For riders and their families, understanding the true frequency and nature of these accidents is the first step toward ensuring safety on the road — and knowing where to turn when tragedy strikes.

This article provides a comprehensive analysis of motorcycle accident statistics in Los Angeles, drawing from high-authority sources including the National Highway Traffic Safety Administration (NHTSA), the California Office of Traffic Safety (OTS), and the University of California Berkeley’s Safe Transportation Research and Education Center (SafeTREC). The data paints a clear and sobering picture of the dangers riders face, the factors that contribute to crashes, and the legal recourse available to victims.

The National Picture: Motorcyclists Are Disproportionately at Risk

Before examining Los Angeles specifically, it is important to understand the broader national context. Motorcyclists are dramatically overrepresented in traffic fatalities relative to their share of vehicle registrations and miles traveled. According to the NHTSA, 6,335 motorcyclists were killed in 2023 — the highest number recorded since at least 1975 — accounting for 15% of all traffic fatalities nationwide.1 This is a striking figure given that motorcycles made up only 3.3% of all registered vehicles in the United States in 2023 and accounted for a mere 0.6% of all vehicle miles traveled.2

The disparity becomes even more alarming when examining crash risk per mile. Per 100 million vehicle miles traveled in 2023, motorcyclists faced a fatality rate of 31.39 — nearly 28 times higher than the 1.13 rate for passenger car occupants.1 Motorcyclists were also 5 times more likely to be injured in a crash than car occupants.3 An estimated 82,564 motorcyclists were injured in 2023 alone.1 These figures underscore the fundamental vulnerability of motorcyclists on American roads and set the stage for understanding why Los Angeles, with its unique traffic conditions, poses such an elevated risk.

California’s Motorcycle Crisis: A State-Level Overview

California consistently ranks among the states with the highest absolute numbers of motorcycle fatalities, a direct consequence of its large population and the enormous number of registered motorcycles. The state has over 800,000 registered motorcycles, more than almost any other state in the nation.4

In 2023, 583 motorcyclists were killed on California roads, according to the California Office of Traffic Safety.5 While this represents a 10.2% decrease from the 649 killed in 2022, it remains a nearly 19% increase from the 491 fatalities recorded in 2019, indicating a deeply troubling long-term trend.5 California’s motorcycle fatality rate stood at approximately 66.57 per 100,000 registered motorcycles in 2023.4

The UC Berkeley SafeTREC 2025 report confirms that in 2023, 14% of all motor vehicle fatalities in California were motorcyclists — a figure that far exceeds the proportion of motorcycle travel.2 Urban crashes accounted for 73% of all fatal motorcycle crashes in California in 2023, a pattern that directly implicates the dense, high-volume traffic environment of cities like Los Angeles.2

The following table summarizes the trend in California motorcycle fatalities over recent years:

Source: UC Berkeley SafeTREC / NHTSA FARS

Los Angeles County: The Most Dangerous County in California

Within California, no county comes close to Los Angeles in terms of the sheer volume of motorcycle accidents, injuries, and deaths. The combination of the nation’s most congested freeway system, dense urban surface streets, and a massive population of both riders and drivers creates a uniquely hazardous environment.

Fatalities and Serious Injuries

In 2023, Los Angeles County recorded 125 motorcycle fatalities — more than any other county in the state and more than double the 52 fatalities recorded in second-place San Diego County.2 The picture is equally stark for serious injuries. Los Angeles County saw 754 serious motorcycle injuries in 2023, again leading the state by a wide margin over San Diego County’s 317.2

The following table compares the top five California counties by motorcycle fatalities and serious injuries in 2023:

Source: UC Berkeley SafeTREC, 2025 (FARS ARF 2023 & Provisional SWITRS 2023)

Historical Frequency

The frequency of motorcycle accidents in Los Angeles has been persistently high for many years. According to the California Highway Patrol’s Statewide Integrated Traffic Records System (SWITRS), Los Angeles County reported 4,853 fatal and injury motorcycle crashes in 2018.6 This figure dwarfs the totals from other major Southern California counties in the same year, including San Diego (1,732), Orange (1,245), and Riverside (988).6 More recent data from the California OTS indicates that Los Angeles County experiences over 2,500 motorcycle accidents per year, many of which result in catastrophic injuries or deaths.7

These numbers translate to a near-daily occurrence of serious motorcycle accidents somewhere in the county. For those who have been involved in a crash, the aftermath can be overwhelming. The attorneys at Steven M. Sweat, Personal Injury Lawyers, APC have helped hundreds of motorcycle accident victims in Los Angeles navigate the legal process and secure the compensation they deserve. You can review our case results to understand our track record of success on behalf of injured riders.

When and Where Do Motorcycle Accidents Happen Most in Los Angeles?

Understanding the patterns of motorcycle accidents — the times, days, and locations where crashes cluster — is essential for both safety awareness and legal analysis.

Peak Times and Days

Data consistently shows that motorcycle accidents in Los Angeles are most likely to occur during the afternoon and evening hours. According to UC Berkeley’s SafeTREC, the peak period for fatal motorcycle crashes in California in 2023 was Saturday afternoon between 12 p.m. and 3 p.m.2 For serious injury crashes, the peak was Saturday afternoon between 3 p.m. and 6 p.m.2

Nationally, 54% of all motorcyclist deaths in 2023 occurred on weekends (6 p.m. Friday to 6 a.m. Monday).8 The single most dangerous time block for fatal motorcycle crashes nationwide is 6 p.m. to 9 p.m. on weekends.8 This window coincides with increased recreational riding, higher traffic volumes, and a greater prevalence of impaired drivers.

Nighttime motorcycle accidents present a separate and especially serious risk. Nationally, motorcycle riders killed in traffic crashes at night were two and a half times more frequently alcohol-impaired than those killed during the day (38% vs. 15% in 2023).1 Reduced visibility, impaired drivers, and the difficulty of seeing motorcycles in the dark all compound the danger after sunset.

Los Angeles’s Most Dangerous Roads

Certain roads and highways in Los Angeles County are notorious for their high rates of motorcycle accidents. These routes often combine heavy traffic volume, high speeds, sharp curves, and inconsistent road surfaces — a lethal combination for motorcyclists.

Pacific Coast Highway (PCH / SR-1) is one of the most scenic and most dangerous roads in Southern California. Its winding coastal path, combined with high traffic volumes and the presence of pedestrians, cyclists, and turning vehicles, makes it a consistent source of serious motorcycle crashes.

Mulholland Drive, known colloquially as “The Snake,” is famous for its tight turns and challenging terrain. It attracts thrill-seeking riders from across the region, and its technical demands have contributed to numerous serious accidents and fatalities over the years.

Angeles Crest Highway is another popular destination for motorcyclists seeking mountain riding. However, its high elevation, sharp switchbacks, and limited guardrails make it treacherous. Data from the California OTS has previously highlighted this route as a major concern for motorcycle safety.7

Los Angeles Freeways (I-405, I-10, I-110, US-101) are a constant source of danger for motorcyclists. The high volume of traffic, frequent and unpredictable lane changes, and high speeds create a perilous environment. These freeway accidents can be just as devastating as any car accident or trucking accident, and the legal complexities can be significant.

The Los Angeles Department of Transportation (LADOT) has acknowledged the severity of the city’s traffic safety problem through its Vision Zero initiative, which aims to eliminate all traffic deaths and serious injuries on city streets. The program identifies a High Injury Network (HIN) — approximately 6% of city streets that account for 70% of deaths and severe injuries — and prioritizes safety improvements on those corridors. Many of these high-injury streets are frequented by motorcyclists.9

In the tragic event of a fatal accident, surviving family members may have the right to pursue a wrongful death claim to seek justice and financial compensation for their devastating loss.

Primary Causes of Motorcycle Accidents in Los Angeles

A multitude of factors contribute to the high rate of motorcycle accidents in Los Angeles. While some are related to rider behavior, a significant proportion are the direct result of other drivers’ negligence, road hazards, and systemic failures. Understanding these causes is essential for both accident prevention and establishing liability in a personal injury claim.

The Leading Crash Factors

The 2025 SafeTREC report, drawing on California’s Statewide Integrated Traffic Records System (SWITRS) data, identifies the following as the top five primary crash factors in fatal and serious injury motorcycle crashes in California in 2023:2

Unsafe speed is the single most common cause, accounting for more than one in four serious motorcycle crashes. Nationally, 36% of all motorcycle riders involved in fatal crashes in 2023 were speeding, compared to just 22% of passenger car drivers.10 This reflects both excessive speed by riders and the high-speed environments of LA’s freeways and mountain roads.

Improper turning — most commonly a left-turn failure to yield by an oncoming vehicle — is the second most common cause. This type of accident is particularly devastating because the motorcyclist often has little or no time to react. Our firm has extensive experience handling left-hand turn failure to yield accidents and can help determine liability in these complex cases.

Right of way violations by automobile drivers are closely related and account for nearly one in five serious motorcycle crashes. Drivers who fail to yield at intersections, merge without checking mirrors, or pull out from side streets without seeing an approaching motorcycle create catastrophic situations. Our attorneys also handle right of way car accidents involving motorcyclists.

Driving under the influence remains a serious problem. Nationally, 41% of motorcycle riders who died in single-vehicle crashes in 2023 were alcohol-impaired.1 Motorcycle riders in fatal crashes had higher percentages of alcohol impairment than drivers of any other motor vehicle type — 26% for motorcycles compared to 24% for passenger cars.1 If you were injured by a drunk driver, our attorneys handle DUI accident claims and can pursue maximum compensation on your behalf.

Unsafe lane changes by other drivers are a common and preventable cause of sideswipe and broadside collisions. Drivers who fail to check their blind spots before changing lanes often do not see motorcycles until it is too late. Distracted driving is a major contributor to this problem.

Lane Splitting: A California-Specific Risk Factor

California is the only state in the nation where lane splitting — riding a motorcycle between lanes of slow-moving or stopped traffic — is legal. While this practice can help motorcyclists navigate congestion, it also introduces unique risks. A California OTS study found that while lane splitting is not inherently more dangerous than other forms of motorcycling, it requires a high level of skill and situational awareness.11 Drivers who are not accustomed to motorcycles appearing between lanes may make sudden movements that cause collisions. Our firm handles motorcycle lane splitting accidents and can help establish fault in these nuanced cases.

The Most Common Crash Types

The 2025 SafeTREC data also breaks down the most common types of motorcycle crashes in California in 2023:2

Broadside crashes — where a vehicle strikes the motorcycle from the side — are the most common and often the most deadly, frequently resulting from right-of-way violations and improper turns. Rear-end collisions are also a significant danger, particularly in stop-and-go freeway traffic.

The Injuries: What Happens When a Motorcycle Accident Occurs

The lack of structural protection that makes motorcycles nimble and fuel-efficient also makes them extraordinarily dangerous in a collision. Unlike car occupants, motorcyclists have no crumple zones, airbags, or seatbelts to absorb impact. Even a relatively low-speed crash can result in catastrophic, life-altering injuries.

Traumatic Brain Injuries

Head injuries are among the most severe consequences of motorcycle accidents. A traumatic brain injury (TBI) can cause permanent cognitive impairment, personality changes, memory loss, and physical disability. Even riders who wear helmets can suffer significant brain trauma in high-impact crashes. Concussions are also extremely common and, when left untreated or when a rider sustains multiple concussions, can have long-term neurological consequences.

Spinal Cord Injuries

The violent forces involved in a motorcycle crash can cause severe damage to the spinal cord, resulting in partial or complete paralysis. A spinal cord injury is among the most devastating outcomes of any accident, often requiring a lifetime of medical care, assistive devices, home modifications, and personal assistance. The financial costs can be staggering, and securing full and fair compensation requires an experienced legal advocate.

Broken Bones and Fractures

Broken bones are among the most common motorcycle crash injuries. The legs, arms, wrists, and ribs are particularly vulnerable. Some fractures, such as femur fractures, can require multiple surgeries, lengthy rehabilitation, and may result in permanent impairment.

Road Rash and Burn Injuries

Road rash — the painful abrasion that occurs when a rider’s skin contacts the pavement — can range from superficial scrapes to deep wounds requiring skin grafts and leaving permanent scarring. In crashes involving fuel ignition, riders may also suffer serious burn injuries that require specialized medical treatment and can cause lasting disfigurement.

These injuries can result in enormous medical bills, lost wages, and a dramatically diminished quality of life. Victims and their families deserve full compensation for all of these losses. Our personal injury attorneys are experienced in building comprehensive damages cases that account for both current and future needs.

Who Is Most at Risk? Motorcycle Accident Demographics

Statistical data on motorcycle accidents reveals that certain demographic groups are disproportionately affected. Understanding these patterns helps target safety efforts and informs the legal analysis of individual cases.

Gender and Age

Young male riders face the highest statistical risk. According to the 2025 SafeTREC report, male victims made up 95% of all fatally injured victims and 89% of all seriously injured victims in motorcycle crashes in California in 2023.2 The most represented age group for both fatalities and serious injuries was males aged 25–34, who accounted for 22.0% of fatalities and 26.1% of serious injuries.2

Younger riders are also disproportionately involved in speed-related fatal crashes. In 2023, riders aged 21–24 had the highest rate of speeding involvement in fatal crashes at 54%.1 The average age of all riders killed in California in 2023 was 41 years old.1

Licensing and Experience

A troubling number of motorcyclists involved in fatal accidents are not properly licensed. In 2023, 34% of motorcycle riders in fatal crashes had no valid motorcycle license.1 This highlights a critical gap in rider education and licensing enforcement. California has specific motorcycle license requirements that all riders must meet, and operating without a valid endorsement not only increases crash risk but can also complicate an injury claim.

The Critical Role of Helmet Use

California has a universal helmet law, requiring all motorcycle riders and passengers to wear a helmet at all times. This law, which has been in effect since 1992, has saved countless lives. A study published in JAMA found that after the law’s implementation, statewide motorcycle crash fatalities decreased by 37.5% in the first year alone.12

The NHTSA estimates that helmets are 37% effective in preventing rider fatalities and 41% effective in preventing passenger fatalities.1 In states without universal helmet laws, 51% of motorcyclists killed in 2023 were not wearing helmets, compared to just 10% in states with universal helmet laws like California.1

In California, the DOT-compliant helmet use rate was high in 2023, and deaths attributable to not wearing a helmet decreased 23.3% from 43 in 2022 to 33 in 2023.5 Understanding California’s motorcycle helmet laws is important not only for safety but also for legal purposes, as helmet use (or lack thereof) can be a factor in determining comparative fault in a personal injury claim.

What to Do After a Motorcycle Accident in Los Angeles

The moments following a motorcycle accident can be chaotic and overwhelming. However, the steps you take immediately after a crash can have a profound impact on both your health and your ability to recover fair compensation. If you are involved in a motorcycle accident in Los Angeles, take the following steps:

1. Prioritize Safety and Seek Medical Attention. Move to a safe location away from traffic if you are able, and call 911 immediately. Even if you feel fine, seek a full medical evaluation. Serious injuries such as internal bleeding, traumatic brain injuries, and spinal damage may not produce immediate symptoms.

2. Report the Accident to the Police. A police report is a vital piece of evidence in a personal injury claim. Provide an accurate account of events, but avoid admitting fault or speculating about the cause of the accident.

3. Document the Scene. If you are physically able, photograph the vehicles, your injuries, road conditions, skid marks, traffic signals, and any other relevant details. Collect the names and contact information of any witnesses.

4. Exchange Information. Obtain the other driver’s name, address, phone number, driver’s license number, vehicle registration, and insurance information.

5. Do Not Give Statements to the Other Driver’s Insurance Company. Insurance adjusters are trained to minimize payouts. Do not provide a recorded statement or accept any settlement offer before consulting with an attorney.

6. Contact an Experienced Motorcycle Accident Lawyer. An experienced Los Angeles motorcycle accident attorney can protect your rights, handle all communications with insurers, gather evidence, retain expert witnesses, and fight to maximize your compensation. If a passenger on your motorcycle was also injured, our attorneys handle injury to passengers on motorcycles as well. Contact us today for a free, no-obligation consultation.

Conclusion: Riding Safely and Seeking Justice in Los Angeles

The data is unambiguous: riding a motorcycle in Los Angeles is a high-risk activity. Los Angeles County leads the entire state in motorcycle fatalities and serious injuries. The city’s congested freeways, dangerous surface streets, and the prevalence of distracted and impaired drivers create a uniquely hazardous environment for motorcyclists. While riders can and should take every available precaution — wearing a DOT-compliant helmet, riding defensively, obtaining proper licensing and training, and being especially vigilant during peak accident hours — they cannot control the actions of negligent drivers.

When a motorcycle accident does occur, the consequences can be life-changing. Traumatic brain injuries, spinal cord damage, severe fractures, and road rash can leave victims facing years of medical treatment, lost income, and a diminished quality of life. In the most tragic cases, families are left to cope with the wrongful death of a loved one.

The attorneys at Steven M. Sweat, Personal Injury Lawyers, APC have been fighting for motorcycle accident victims in Los Angeles and throughout California for over 25 years. We are committed to providing compassionate, aggressive representation to help our clients obtain the justice and financial recovery they deserve. Read testimonials from our past clients to learn more about our dedication to the people we serve. If you have questions, visit our FAQ page or contact us directly for a free consultation. There is no fee unless we win your case.

References

Footnotes

1.National Highway Traffic Safety Administration. (2025, July). Traffic Safety Facts: 2023 Data — Motorcycles (DOT HS 813 732). U.S. Department of Transportation. https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/813732.pdf ↩ ↩2 ↩3 ↩4 ↩5 ↩6 ↩7 ↩8 ↩9 ↩10 ↩11

2.Safe Transportation Research and Education Center, University of California, Berkeley. (2025 ). 2025 SafeTREC Traffic Safety Facts: Motorcycle Safety. https://safetrec.berkeley.edu/2025-safetrec-traffic-safety-facts-motorcycle-safety ↩ ↩2 ↩3 ↩4 ↩5 ↩6 ↩7 ↩8 ↩9 ↩10 ↩11

3.National Highway Traffic Safety Administration. (n.d. ). Motorcycle Safety. https://www.nhtsa.gov/road-safety/motorcycles ↩

4.Federal Highway Administration. (2023 ). State Motor-Vehicle Registrations – 2023. https://www.fhwa.dot.gov/policyinformation/statistics/2023/mv1.cfm ↩ ↩2

5.California Office of Traffic Safety. (n.d. ). Motorcycle Safety. State of California. https://www.ots.ca.gov/grants/motorcycle-safety/ ↩ ↩2 ↩3

6.California Highway Patrol. (2019 ). 2018 Annual Report of Fatal and Injury Motor Vehicle Traffic Collisions. https://www.chp.ca.gov/programs-services/services-information/switrs-statewide-integrated-traffic-records-system/switrs-2018-report ↩ ↩2

7.California Office of Traffic Safety. (2025, July ). California Traffic Safety Quick Stats. https://www.ots.ca.gov/ots-and-traffic-safety/score-card/ ↩ ↩2

8.Insurance Institute for Highway Safety. (2025 ). Fatality Facts 2023: Motorcycles and ATVs. https://www.iihs.org/research-areas/fatality-statistics/detail/motorcycles-and-atvs ↩ ↩2

9.Los Angeles Department of Transportation. (2024 ). Vision Zero Los Angeles Safety Study. https://ladot.lacity.gov/sites/default/files/documents/la-vision-zero-safety-study-2024.pdf ↩

10.National Highway Traffic Safety Administration. (2025, July ). Traffic Safety Facts: 2023 Data – Speeding (DOT HS 813 721). U.S. Department of Transportation. https://crashstats.nhtsa.dot.gov/Api/Public/Publication/813721 ↩

11.California Office of Traffic Safety. (2015 ). Motorcycle Lane-Splitting and Safety in California. https://www.ots.ca.gov/wp-content/uploads/sites/67/2019/06/Motorcycle-Lane-Splitting-and-Safety-2015.pdf ↩

12.Kraus, J.F., et al. (1994 ). The Effect of the 1992 California Motorcycle Helmet Use Law on Motorcycle Crash Fatalities and Injuries. JAMA, 272(19), 1506–1511. https://jamanetwork.com/journals/jama/fullarticle/382651 ↩Los Angeles, a city synonymous with sprawling freeways, endless sunshine, and a vibrant culture, is also a haven for motorcycle enthusiasts. The year-round riding weather, iconic scenic routes like Mulholland Drive and Pacific Coast Highway, and the practical appeal of filtering through congested traffic all make motorcycling an attractive choice for hundreds of thousands of Southern California residents. However, this idyllic picture is shadowed by a grim reality: Los Angeles is one of the most dangerous places in the United States to ride a motorcycle. For riders and their families, understanding the true frequency and nature of these accidents is the first step toward ensuring safety on the road — and knowing where to turn when tragedy strikes.