Fatal crash profile · County

Traffic deaths in Suffolk County, Massachusetts

County in Massachusetts · United States

Deaths, 2024
33
Fatal crashes
31
Population
793.5K

In 2024, 33 people died in 31 fatal crashes in Suffolk County, Massachusetts. That was 50.0% more than in 2023 (22) and the most since 2021. The death rate was 4.2 per 100,000 residents, compared with 5.1 in Massachusetts and 11.5 in the United States. Suffolk County had the 7th most traffic deaths among Massachusetts's counties. Between 2020 and 2024, 138 people died, an average of 28 a year. Pedestrians accounted for 45% of deaths, and 26% of fatal crashes were speeding-related.

Deaths

Traffic deaths

4.2

deaths per 100,000 residents in 2024

  • About 80 percent of the rate in Massachusetts: 5.1
  • About 35 percent of the rate in the United States: 11.5

3.5

average deaths per 100,000 residents a year, 2020–2024

  • About two-thirds of the average in Massachusetts: 5.4
  • About 30 percent of the average in the United States: 12.3

+50%

change in deaths from 2023 to 2024

22 deaths in 2023, 33 in 2024

  • Massachusetts: +6%
  • The United States: -4%
Traffic deaths by year, 2020–2024
Category Deaths Fatal crashes
2020 19 19
2021 36 34
2022 28 26
2023 22 21
2024 33 31

People who died within 30 days of a crash. A fatal crash can kill more than one person.

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Deaths per 100,000 residents, 2020–2024
Category Deaths per 100,000
2020 2.4
2021 4.6
2022 3.6
2023 2.8
2024 4.2

Uses Census population estimates, available from 2000.

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Road users

Who died

45%

of deaths were pedestrians

  • About double the share in Massachusetts: 21%
  • About 3 times the share in the United States: 18%
Who died in 2024
Category Deaths
Vehicle occupants and others 11
Pedestrians 15
Motorcyclists 6
Cyclists 1
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Deaths by type, 2024
Type Deaths Share in Suffolk County Share in Massachusetts
Pedestrians 15 45% 21%
Motorcyclists 6 18% 19%
Cyclists 1 3% 3%
Alcohol-impaired driving crashes 6 18% 28%
Speeding-related crashes 10 30% 29%

Alcohol-impaired and speeding-related count everyone killed in those crashes, so a death can appear in more than one row.

Crash factors

Speeding, alcohol, night and weekend crashes

26%

of fatal crashes were speeding-related

  • About the same as the share in Massachusetts: 28%
  • About the same as the share in the United States: 28%

19%

of fatal crashes involved a drinking driver

  • About 70 percent of the share in Massachusetts: 27%
  • About 80 percent of the share in the United States: 25%
Crash factors in 2024
Category Suffolk County Massachusetts United States
Speeding-related 19.4% 27.2% 24.8%
Alcohol-involved 25.8% 27.5% 28.1%
At night 61.3% 46.4% 53.6%
At weekends 29.0% 34.4% 32.6%

Share of fatal crashes. Alcohol-involved means a police-reported drinking driver.

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Timing

When crashes happen

61%

of fatal crashes happened at night

  • About 1.3 times the share in Massachusetts: 46%
  • About 1.1 times the share in the United States: 54%

29%

of fatal crashes happened at weekends

  • About 85 percent of the share in Massachusetts: 34%
  • About 90 percent of the share in the United States: 33%
Fatal crashes by hour of day
Category Fatal crashes
12am 8
1am 6
2am 8
3am 4
4am 3
5am 2
6am 4
7am 3
8am 2
9am 6
10am 5
11am 7
12pm 4
1pm 3
2pm 6
3pm 6
4pm 3
5pm 5
6pm 2
7pm 11
8pm 10
9pm 10
10pm 6
11pm 7

All crashes 2020–2024.

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Fatal crashes by day of week
Category Fatal crashes
Sun 18
Mon 15
Tue 21
Wed 21
Thu 12
Fri 16
Sat 28

All crashes 2020–2024.

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Fatal crashes by month
Category Fatal crashes
Jan 9
Feb 5
Mar 16
Apr 6
May 7
Jun 12
Jul 13
Aug 16
Sep 13
Oct 12
Nov 9
Dec 13

All crashes 2020–2024.

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Conditions

Weather and light

Weather at the time of the crash
Category Fatal crashes
Clear 93
Cloudy 11
Rain 11
Snow 2
Severe Crosswinds 1
Sleet or Hail 1

All crashes 2020–2024. Crashes where conditions were not reported are left out.

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Light conditions at the time of the crash
Category Fatal crashes
Dark - Lighted 67
Daylight 50
Dusk 3
Dark - Unknown Lighting 2
Dark - Not Lighted 1

All crashes 2020–2024. Crashes where conditions were not reported are left out.

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Roads and vehicles

Where and what, 2020–2024

Roads with the most fatal crashes

  1. I-9310
  2. I-907
  3. WASHINGTON ST7
  4. MASSACHUSETTS AVE4
  5. CHELSEA ST3
  6. SOLDIERS FIELD RD3
  7. COLUMBIA RD3
  8. US-13
  9. MORRISSEY BLVD2
  10. ALBANY ST2

Road names as recorded in police reports.

Vehicles involved, by type
Category Vehicles
Cars 65
SUVs 57
Motorcycles 27
Medium and heavy trucks 11
Vans 9
Pickup trucks 7
Other vehicles 6
Buses 5

All crashes 2020–2024.

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Vehicles most often involved

  1. Honda Civic10
  2. Honda Accord10
  3. Toyota Highlander6
  4. Toyota RAV44
  5. Toyota Camry4
  6. Lexus RX4
  7. Ford Explorer4
  8. Toyota Corolla3
  9. Hyundai Santa Fe3
  10. Ford F-1503

Reflects how common a vehicle is as well as crash involvement; not a safety rating.

Crashes

Fatal crashes

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Fatal crashes in 2024. Crashes without reported coordinates are not shown.

Filter crashes
Crash factors
Date Location Deaths
Dec 27, 2024 Boston 1
Dec 18, 2024 Boston 1
Dec 12, 2024 Boston 1
Dec 12, 2024 Boston 1
Nov 20, 2024 Chelsea 1
Nov 16, 2024 Boston 1
Nov 4, 2024 Boston 1
Oct 12, 2024 Boston 1
Oct 4, 2024 Boston 1
Sep 30, 2024 Chelsea 1
Sep 28, 2024 Boston 1
Sep 5, 2024 Boston 1
Sep 2, 2024 Boston 1
Aug 23, 2024 Boston 1
Aug 23, 2024 Boston 1
Aug 17, 2024 Boston 1
Jun 25, 2024 Boston 1
Jun 5, 2024 Boston 1
May 4, 2024 Boston 1
Apr 2, 2024 Boston 1
Mar 31, 2024 Boston 1
Mar 29, 2024 Chelsea 1
Mar 24, 2024 Boston 1
Mar 10, 2024 Revere 1
Feb 28, 2024 Boston 1

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Nearby and related

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Source: NHTSA Fatality Analysis Reporting System (FARS), 2020–2024. A fatal crash is one in which at least one person died within 30 days. Population: US Census Bureau estimates.