Massachusetts Car Accident Statistics: Fatalities, Causes, and Trends
Massachusetts car accident statistics paint a sobering picture for drivers, passengers, pedestrians, and cyclists across the Commonwealth. According to MassDOT crash data, more than 135,000 motor vehicle crashes were reported in Massachusetts in 2024, resulting in 364 fatalities and thousands of serious injuries. While Massachusetts consistently maintains one of the lowest traffic fatality rates per capita in the nation, every number in these statistics represents a real person, a real family, and real consequences.
Understanding the data behind car accident fatalities in Massachusetts, what causes them, where they happen, and who is most at risk, helps you make safer decisions on the road. And if you or a loved one becomes part of these statistics, knowing your legal rights is essential to protecting your future.
Massachusetts Traffic Fatality Overview
Massachusetts has long been among the safest states for drivers when measured by fatality rate. According to IIHS data for 2023, the state’s fatality rate of 4.9 deaths per 100,000 people was the lowest in the nation, compared to the most dangerous state at 24.9 per 100,000. The death rate per 100 million vehicle miles traveled was 0.56, also the lowest nationally.
However, “lowest rate” does not mean “safe.” Hundreds of people still die on Massachusetts roads every year, and the number of total crashes continues to climb. In 2024, MassDOT crash data shows 364 traffic fatalities statewide, along with roughly 2,400 serious-injury crashes; in recent finalized years, serious injuries have run between 2,800 and 3,000 annually. The five-year average for traffic fatalities in Massachusetts (2020 through 2024) is approximately 380 per year.
Car Accident Fatalities in Massachusetts by Year
Traffic fatality trends in Massachusetts have followed national patterns in recent years, with a notable spike during and after the COVID-19 pandemic. Despite fewer vehicles on the road in 2020, riskier driving behaviors, including speeding and impaired driving, contributed to elevated death tolls. The following table shows the year-over-year trend:
| Year | Traffic Fatalities | Total Reported Crashes | Trend |
|---|---|---|---|
| 2020 | 343 | ~100,500 | Fatalities elevated despite lower traffic volume (COVID) |
| 2021 | 413 | ~125,200 | Significant increase as traffic returned |
| 2022 | 435 | ~134,500 | Highest in recent history |
| 2023 | 343 | ~135,300 | Notable decrease in fatalities |
| 2024 | 364 | ~135,400 | Increase from 2023 |
The data reveals a troubling pattern: total crashes continued to increase from 2020 through 2024 as traffic volumes returned to pre-pandemic levels, while the fatality count spiked sharply in 2021 and 2022 before declining in 2023. The 2024 fatality count of 364 represents an increase over 2023, suggesting that the downward trend may not be sustained. (Figures reflect MassDOT crash data as of mid-2026; counts can shift slightly as late reports are added.)
Fatalities by Road User Type
Not all traffic deaths involve vehicle occupants. Pedestrians, motorcyclists, and bicyclists make up a significant and growing share of auto accident deaths in Massachusetts. The following table breaks down fatalities by road user category based on recent MassDOT and NHTSA data:
| Road User Type | 2023 Fatalities | 2024 Fatalities | Change |
|---|---|---|---|
| Motor Vehicle Occupants | ~210 | ~205 | Relatively stable |
| Pedestrians | 67 | 78 | +16% |
| Motorcyclists | 58 | 72 | +24% |
| Bicyclists | ~8 | ~7 | Relatively stable |
The sharp increases in pedestrian fatalities and motorcycle deaths in 2024 are particularly alarming. Pedestrians now account for more than 20 percent of all traffic deaths in Massachusetts. Motorcyclist fatalities rose 24 percent in a single year, with 72 riders killed in 2024 compared to 58 in 2023.
Leading Causes of Car Accidents in Massachusetts
Understanding what causes car crashes in Massachusetts is essential for prevention and for establishing liability in injury claims. The following factors are the most common contributors to collisions on Massachusetts roads.
Distracted Driving
Distracted driving is the leading cause of car accidents in Massachusetts and nationwide. Texting, using a smartphone, adjusting navigation or audio systems, eating, and even conversations with passengers all take a driver’s attention away from the road. Massachusetts enacted a hands-free driving law in February 2020, making it illegal to hold or use a handheld device while driving. Despite this law, tens of thousands of hands-free violations are cited every year, and the true toll of distraction is likely far higher than the citation numbers suggest because distraction is difficult to prove after the fact.
Speeding
Speeding reduces a driver’s ability to react to hazards and increases the severity of any crash that does occur. According to NHTSA data, speeding was a factor in 29 percent of all traffic fatalities nationally in 2023, and Massachusetts is no exception. Higher speeds on highways like I-93, Route 128, and the Mass Pike contribute to particularly severe crashes, especially during congested conditions when sudden speed changes create dangerous differentials.
Drunk and Impaired Driving (OUI)
Approximately one-third of all Massachusetts motor vehicle fatalities involve a driver under the influence of alcohol: 34 percent of the state’s 2023 traffic deaths, according to NHTSA, compared to a national rate of 30 percent that year. Among Massachusetts drivers hospitalized for crash-related injuries, 35 percent were under the influence of alcohol or drugs at the time of the crash, according to state public health data for 2021. Impaired driving crashes are most common on weekends and during late-night hours, particularly between midnight and 3:00 a.m.
Aggressive Driving and Road Rage
Tailgating, unsafe lane changes, running red lights, and other aggressive driving behaviors contribute to thousands of crashes each year in Massachusetts. Boston drivers in particular have earned a reputation for aggressive driving habits. The dense urban environment, narrow streets, and unpredictable traffic patterns in cities like Boston, Cambridge, and Everett amplify the danger of aggressive maneuvers.
Weather-Related Crashes
Massachusetts winters bring ice, snow, sleet, and reduced visibility that make roads dangerous from November through March. Even a light dusting of snow can turn highway ramps and bridges into hazards. Rain is also a significant factor, particularly during sudden summer downpours that reduce visibility and create hydroplaning conditions. While weather itself does not cause crashes, drivers who fail to adjust their speed and following distance for conditions are responsible for the resulting collisions.
Intersection Collisions
Intersections are among the most dangerous points on any road. Failure to yield, running red lights, misjudging turning distances, and pedestrian conflicts all contribute to intersection crashes. MassDOT maintains data on the top crash locations in the state, and many of the highest-crash clusters are at intersections along Route 128, I-93, and major urban corridors in Boston, Worcester, and Springfield.
Most Dangerous Roads and Highways in Massachusetts
Certain roads in Massachusetts consistently produce more crashes, injuries, and fatalities than others. High traffic volume, complex interchanges, and speed differentials all contribute to the danger on these corridors.
| Road/Highway | Key Danger Factors | Notable Data |
|---|---|---|
| Interstate 93 | Extreme traffic volume, urban congestion, merging conflicts | Carries roughly 200,000 vehicles per day at its busiest points; among the highest crash-per-mile rates in the state |
| Route 128 / I-95 | High-speed commuter traffic, complex interchanges, weaving | The Route 128/Middlesex Turnpike interchange in Burlington is a top crash location |
| I-90 (Mass Pike) | Long-distance travel, speed, truck traffic | The I-495/Mass Pike interchange produces hundreds of crashes per year |
| Route 2 | Two-lane sections, sharp curves, head-on collision risk | Western sections through Charlemont and Greenfield are particularly hazardous |
| Route 24 | High speed, heavy commuter volume between Brockton and Taunton | One of the most dangerous non-interstate highways in the state |
| Route 3 | South Shore commuter corridor, merge points, congestion | Heavy traffic between Braintree and Plymouth during peak hours |
The I-93 corridor through Boston, including connections to the Zakim Bridge and the Southeast Expressway, accounts for a disproportionate share of the state’s total crashes. The combination of high traffic density, short merging lanes, and drivers navigating unfamiliar exits creates a consistently dangerous environment. Rear-end collisions are especially common on these congested highways during rush hour.
Most Dangerous Cities for Car Accidents in Massachusetts
While car crashes happen in every Massachusetts community, certain cities experience far more collisions than others due to population density, traffic volume, road design, and driving culture.
Boston
Boston ranks as the most collision-prone city in the state and one of the most dangerous in the nation. Allstate’s 2025 America’s Best Drivers report found that the average Boston driver is involved in a crash approximately once every three years, compared to the national average of once every 10.5 years. With roughly 5,700 crashes recorded in MassDOT data for 2024, Boston’s narrow colonial-era streets, aggressive traffic, heavy pedestrian activity, and complex one-way systems all contribute to the problem. Car crashes in Boston are concentrated in neighborhoods like Dorchester, Roxbury, and Mattapan, as well as along major arteries like Commonwealth Avenue and Blue Hill Avenue.
Worcester
As the second-largest city in Massachusetts, Worcester recorded more than 5,600 car accidents in 2024, according to MassDOT data. The average Worcester driver experiences a crash approximately every 4.26 years, per the same Allstate report. Major crash corridors include Route 9 (Belmont Street), Route 20, and the I-290/I-190 interchange.
Springfield
Springfield had at least 13 traffic fatalities in 2024, including at least four pedestrian deaths. Despite having a smaller population and land area than Boston, Springfield’s fatality rate is disproportionately high relative to its size. High-speed corridors through the city, including I-91 and I-291, contribute to severe crashes.
Other High-Crash Cities
Brockton, New Bedford, Fall River, Lowell, Lawrence, and Lynn all report elevated crash rates. These cities share common risk factors: aging road infrastructure, heavy commuter traffic, high population density, and significant pedestrian activity. Brockton in particular faces challenges along Route 24 and Route 28, while Lowell and Lawrence see concentrated crash activity along the I-495 and Route 28 corridors. Quincy, with its proximity to the Southeast Expressway and heavy Quincy Center traffic, also ranks among the communities with higher crash frequencies.
Pedestrian Accident Statistics in Massachusetts
Pedestrian fatalities in Massachusetts are rising at an alarming rate, bucking a national trend of declining pedestrian deaths. In 2024, 78 pedestrians were killed in traffic crashes across the state, a 16 percent increase from the 67 pedestrian deaths recorded in 2023. Pedestrians now account for more than one in five traffic fatalities in Massachusetts.
Key pedestrian fatality data points include:
- Over one-third of pedestrian fatality victims in 2024 were aged 65 or older
- Older adults, people with disabilities, and residents in environmental justice communities face disproportionate risk
- As of early October 2025, 47 pedestrians had already been killed, putting the year on pace to match or exceed 2024
- Urban areas account for the vast majority of pedestrian deaths, with Boston, Springfield, Worcester, and New Bedford reporting the highest numbers
The rise in pedestrian fatalities has prompted increased advocacy for pedestrian safety infrastructure, including better crosswalk design, reduced speed limits in urban areas, and traffic calming measures. If you or a family member is struck by a vehicle while walking, you may have a claim against the driver, and in some cases against the municipality for dangerous road design.
Motorcycle Accident Statistics in Massachusetts
Motorcycle fatalities in Massachusetts surged in 2024, with 72 rider deaths representing a 24 percent increase over the 58 fatalities recorded in 2023. This spike is part of a broader national trend of increasing motorcycle deaths as motorcycle registrations grow and riders face elevated risk from distracted drivers in larger vehicles.
Key motorcycle crash data for Massachusetts:
- 2024 fatalities: 72 total (71 operators and 1 passenger), per MassDOT
- 2023 comparison: 58 motorcyclist deaths, making 2024 a roughly 24 percent increase
- Seasonal concentration: The majority of motorcycle fatalities occur between May and September, when riding activity peaks
Massachusetts has a universal helmet law: under M.G.L. c. 90, Section 7, every motorcycle operator and passenger must wear protective headgear whenever they ride. Even with helmets, head injuries are the leading cause of death in motorcycle crashes, and traumatic brain injuries are common even in non-fatal incidents.
Seasonal and Time-of-Day Patterns
Car accidents in Massachusetts follow predictable seasonal and time-of-day patterns that can help drivers understand when they face the greatest risk.
Seasonal Trends
- Winter (December through February): Ice, snow, and reduced daylight contribute to a spike in crashes, particularly on bridges, overpasses, and highway ramps. Single-vehicle crashes caused by loss of control on slippery roads are common during this period.
- Spring (March through May): Pothole season creates new hazards, and the return of motorcyclists and cyclists to the roads increases multi-vehicle crash risk.
- Summer (June through August): Higher traffic volumes from tourism, construction zones, and motorcycle activity drive summer crash numbers up. Cape Cod and South Shore routes see significant congestion-related crashes.
- Fall (September through November): Leaf-peeping tourism on Routes 2 and 9 in western Massachusetts creates seasonal congestion, while earlier sunsets increase the risk of dusk and nighttime crashes.
Time-of-Day Patterns
The highest concentration of crashes occurs during the evening rush hour between 4:00 p.m. and 7:00 p.m., when traffic volume peaks and driver fatigue sets in after a full workday. A second spike occurs during the morning commute between 7:00 a.m. and 9:00 a.m. Fatal crashes, however, are disproportionately concentrated during late-night and early-morning hours between 11:00 p.m. and 3:00 a.m., when impaired driving and drowsy driving are most prevalent.
OUI and Impaired Driving Statistics in Massachusetts
Driving under the influence of alcohol or drugs remains one of the deadliest factors on Massachusetts roads. According to state data, approximately one-third of all motor vehicle fatalities in Massachusetts involve an impaired driver, a rate that exceeds the national average.
- 34 percent of Massachusetts traffic deaths in 2023 involved an alcohol-impaired driver (NHTSA)
- 35 percent of Massachusetts drivers hospitalized for crash injuries in 2021 were under the influence of alcohol or drugs (state public health data)
- OUI arrests in Massachusetts number in the thousands each year, but enforcement cannot catch every impaired driver
- Drug-impaired driving, including marijuana and prescription medications, is an increasing concern since the legalization of recreational marijuana in 2016
If you are injured by a drunk or impaired driver in Massachusetts, you may be entitled to enhanced damages. Impaired driving cases often involve stronger evidence of negligence, which can support higher settlements and stronger claims for pain and suffering. Understanding comparative negligence rules is also important, as the other driver’s impairment can significantly impact fault allocation.
Economic Cost of Car Accidents in Massachusetts
The financial toll of car accidents extends far beyond the individuals directly involved. According to NHTSA’s most recent comprehensive study (2019 data, published 2023), motor vehicle crashes cost the United States $340 billion per year in direct economic costs, including medical expenses, lost wages, property damage, emergency response, and legal costs. When quality-of-life costs are included, the total reaches nearly $1.4 trillion annually.
In Massachusetts specifically, the economic impact is substantial:
- Medical costs: Emergency room visits, surgeries, rehabilitation, and long-term care for the approximately 2,300 seriously injured victims per year
- Lost wages and productivity: Injured workers unable to return to their jobs, and the permanent loss of earning capacity for those with disabling injuries
- Property damage: Vehicle repairs and replacements across more than 100,000 annual crashes
- Insurance costs: The state’s high crash frequency puts steady upward pressure on the auto insurance premiums Massachusetts drivers pay
- Infrastructure costs: Guardrail replacement, road repair, emergency response, and traffic management for crash scenes
For individual victims, the costs can be devastating. A serious car accident can result in hundreds of thousands of dollars in medical bills, months or years of lost income, and permanent changes to quality of life. Understanding the average car accident settlement in Massachusetts can help injured victims gauge whether an insurance company’s offer is fair.
What to Do If You Are in a Massachusetts Car Accident
If you become part of these statistics, what you do in the hours and days after a car accident can significantly affect your ability to recover compensation. The essential steps include:
- Call 911 and get a police report. A police report is critical documentation for any injury claim.
- Seek medical attention immediately. Many injuries, including concussions, whiplash, and internal injuries, have delayed symptoms. Early medical documentation connects your injuries to the crash.
- Document everything. Photograph the vehicles, the scene, road conditions, and any visible injuries. Get contact and insurance information from all drivers and witnesses.
- Report to your insurance company. Massachusetts requires prompt notification to your own insurer.
- Do not give a recorded statement to the other driver’s insurance company without consulting an attorney. Adjusters are trained to get you to minimize your injuries or admit fault.
- Contact an experienced personal injury attorney. An attorney can protect your rights, handle insurance negotiations, and ensure you receive the full compensation you deserve.
Keep in mind that Massachusetts law requires your reasonable and necessary medical expenses to exceed $2,000 before you can pursue a claim for pain and suffering (M.G.L. c. 231, Section 6D), and you have three years from the date of the accident to file a lawsuit. Rideshare accidents involving Uber or Lyft may involve additional insurance layers that require experienced legal guidance.
Frequently Asked Questions
How many car accidents happen in Massachusetts each year?
Massachusetts averages approximately 130,000 to 140,000 reported motor vehicle crashes per year according to MassDOT data. In 2024, more than 135,000 crashes were reported statewide. These figures include property-damage-only collisions, injury crashes, and fatal crashes. The actual number may be higher because minor fender-benders and parking lot incidents often go unreported.
What is the leading cause of car accidents in Massachusetts?
Distracted driving is the leading cause of car accidents in Massachusetts. This includes texting, using a smartphone, adjusting GPS or audio systems, and other in-car distractions. Massachusetts enacted a hands-free driving law in 2020 to combat this problem, yet more than 37,000 hands-free violations were recorded in just the first seven months of 2024. Speeding, impaired driving, and aggressive driving are also major contributing factors.
What are the most dangerous roads in Massachusetts?
According to MassDOT crash data, the most dangerous roads in Massachusetts include Interstate 93 (particularly through Boston, where it carries roughly 200,000 vehicles per day), Route 128/I-95, the Massachusetts Turnpike (I-90), Route 24, and Route 2. The I-93 and Route 128 interchange in Woburn and the I-495/Mass Pike interchange are among the highest-crash locations in the state.
How many pedestrians are killed in Massachusetts car accidents each year?
Pedestrian fatalities in Massachusetts have been rising. In 2024, 78 pedestrians were killed in traffic crashes, a 16 percent increase from 67 pedestrian deaths in 2023. This increase is particularly concerning because pedestrian fatalities declined nationally during the same period. Pedestrians account for more than 20 percent of all traffic deaths in Massachusetts. Over one-third of pedestrian fatality victims in 2024 were aged 65 or older.
Which Massachusetts city has the most car accidents?
Boston has the highest number of car accidents among Massachusetts cities, with roughly 5,700 crashes recorded in MassDOT data for 2024. Allstate’s 2025 America’s Best Drivers report ranked Boston as the most collision-prone city in the country, finding that the average Boston driver is involved in a crash about once every three years compared to the national average of once every 10.5 years. Worcester, Springfield, Brockton, and New Bedford also have high crash rates relative to their populations.
What should I do if I am injured in a car accident in Massachusetts?
If you are injured in a Massachusetts car accident, call 911 and request a police report. Seek medical attention immediately, even if you feel fine, because many injuries have delayed symptoms. Document the scene with photographs. Exchange insurance information with all involved drivers. Report the accident to your own insurance company. Do not give a recorded statement to the other driver’s insurer without consulting an attorney. Contact a personal injury lawyer to protect your right to compensation. You have three years from the date of the accident to file a lawsuit under M.G.L. c. 260, Section 2A.
About the Author
Christopher Murphy, Esq. is the Managing Partner of Scalli Murphy Law with offices in Everett and Danvers, Massachusetts. Attorney Murphy has represented personal injury victims across Massachusetts since 1999 and has been recognized as a Massachusetts Super Lawyer in Personal Injury. He has helped thousands of clients and families recover compensation after car accidents, premises liability incidents, wrongful death cases, and other personal injury claims.
Contact Scalli Murphy Law
If you or a loved one has been injured in a car accident in Massachusetts, do not become another statistic without knowing your rights. Scalli Murphy Law has over 30 years of experience representing accident victims throughout Massachusetts, from Boston, Cambridge, and Everett to Worcester, Springfield, and Brockton. Whether you were injured on I-93, Route 128, the Mass Pike, or a local road in your neighborhood, we handle every aspect of your claim, from gathering evidence and negotiating with insurance companies to taking your case to trial when necessary.
Call 617-387-7000 or 1-833-933-HURT for a free consultation. There is no fee unless we recover for you.
Everett Office: 537 Broadway, Everett, MA 02149
Danvers Office: 1 Webb Street, Danvers, MA 01923
Related Resources:
- Motor Vehicle Injury Practice Area
- Most Dangerous Intersections in Massachusetts
- Average Car Accident Settlement in Massachusetts (2026)
- What to Do After a Car Accident in Massachusetts
- Rear-End Car Accidents in Massachusetts
- Pedestrian Accident Claims in Massachusetts
- Brain Injury Symptoms After a Car Accident
- Uber and Lyft Accident Claims in Massachusetts
- Comparative Negligence: The 51% Rule Explained
This article provides general information about Massachusetts law and is not legal advice. Every case is different. For advice about your specific situation, contact Scalli Murphy Law, P.C. at 617-387-7000 for a free consultation.