Middlesex County, Connecticut: fatal crash statistics

Counties of Connecticut by year (CSV)Cite this page

FARS records 14 deaths in 14 fatal crashes in Middlesex County in 2024.

FARS records 149 deaths in 140 fatal crashes in the county from 2015 to 2024.

From 2015 to 2024 the rate is 9.2 deaths for each 100,000 residents in a year.

The rate of Connecticut in the same years is 8.3.

By deaths from 2015 to 2024, Middlesex County was number 7 of 8 counties of Connecticut.

Deaths in Middlesex County fell by 5.1% between the ten years 2005 to 2014 (157) and the ten years 2015 to 2024 (149).

In the counties of Connecticut the deaths rose by 8.5% between the same years.

From 2015 to 2024, pedestrians were 8.7% of the deaths in Middlesex County and 18.8% in Connecticut.

To qualify as a FARS case, the crash had to involve a motor vehicle traveling on a trafficway customarily open to the public and must have resulted in the death of a motorist or a non-motorist within 30 days of the crash.
The set of first files, known as the Annual Report File (ARF), is released following the crash year. The ARF is replaced about a year later with a final file, which contains additional cases or updates to cases that had become available after the ARF was released.
NHTSA's words. Source: NHTSA, Fatality Analysis Reporting System Analytical User's Manual, 1975-2024 (DOT HS 813 794, April 2026), copied on 2 Oct 2026.

This page rests on the FARS 2024 annual file. NHTSA released it on 1 Apr 2026. NHTSA can revise the counts in the final file. Release dates

Figure 1.Deaths in Middlesex County by year, 2015 to 2024

Table 1 has the numbers. Go to the table

Since the last update: no figure of this county has a change on record.

Deaths and fatal crashes by year

Table 1.Middlesex County: deaths and fatal crashes by year, 2015 to 2024
Year	Deaths	Fatal crashes	Crashes with a driver recorded as drinking
2024	14	14	6
2023	18	17	6
2022	13	12	3
2021	10	10	1 or 2
2020	17	14	8
2019	13	12	3
2018	15	13	6
2017	10	10	4
2016	18	18	6
2015	21	20	6
2015 to 2024	149	140	50

Each year from 1975

Figure 2.Deaths in Middlesex County by year, 1975 to 2024

Tallest column: 39 (1980)2024: 14

The columns with a stronger shade are the years 2015 to 2024.

Table 2.Middlesex County: deaths and fatal crashes by year, 1975 to 2024
Year	Deaths	Fatal crashes
2024	14	14
2023	18	17
2022	13	12
2021	10	10
2020	17	14
2019	13	12
2018	15	13
2017	10	10
2016	18	18
2015	21	20
2014	13	13
2013	17	14
2012	15	14
2011	12	12
2010	19	18
2009	14	14
2008	15	14
2007	15	14
2006	17	16
2005	20	20
2004	18	17
2003	10	9
2002	14	12
2001	16	15
2000	12	12
1999	16	13
1998	21	20
1997	20	17
1996	15	15
1995	18	15
1994	12	12
1993	18	18
1992	15	13
1991	17	14
1990	15	14
1989	20	19
1988	26	22
1987	31	30
1986	30	28
1985	31	29
1984	37	35
1983	30	27
1982	37	35
1981	34	34
1980	39	35
1979	25	24
1978	25	24
1977	22	22
1976	23	20
1975	20	15

Note: a count of 1 or 2 is written "1 or 2". A death is in FARS when it occurs in 30 days or less after the crash.

Rate for each 100,000 residents

Table 3.Middlesex County beside Connecticut and the United States: deaths for each 100,000 residents
Period	Middlesex County	Connecticut	United States
2024	8.7	8.4	11.5
2015 to 2024, in a year	9.2	8.3	11.8

Note: the rate divides the deaths in the county by its residents. Persons who do not live in the county are in the deaths, not in the residents.

Population: Census Bureau estimates, vintage 2025. The file of the Census Bureau for vintage 2025 has the planning regions of Connecticut and no county. This site uses the estimate of 2020 for the years from 2021. Middlesex County had 161,657 residents in 2020.

Factors that NHTSA records

Table 4.Middlesex County: counts by recorded factor, 2015 to 2024
Factor	Count	Counted among	Share	Share in Connecticut
A driver recorded as drinkingof 140 fatal crashes	50	140 fatal crashes	35.7%	34.3%
A speeding-related driverof 140 fatal crashes	41	140 fatal crashes	29.3%	33.3%
No restraint usedof 83 occupant deaths with restraint use known	33	83 occupant deathswith restraint use known	39.8%	49.8%
Pedestriansof 149 deaths	13	149 deaths	8.7%	18.8%
Bicyclistsof 149 deaths	4	149 deaths	2.7%	1.2%
Motorcyclistsof 149 deaths	31	149 deaths	20.8%	19.6%
On a rural roadof 139 fatal crashes with the condition reported	24	139 fatal crasheswith the condition reported	17.3%	14.4%
In the darkof 140 fatal crashes with the condition reported	59	140 fatal crasheswith the condition reported	42.1%	51.1%

Note: FARS records a driver as drinking when police reported alcohol involvement or a test of the driver was positive for alcohol. It is not NHTSA's alcohol-impaired measure, which uses a blood alcohol concentration of .08 g/dL or higher. One crash can be in two or more rows. NHTSA's definitions

Note that alcohol data is often missing. For that reason, this data element may under-count the actual number of drinking drivers.

NHTSA's words. Source: NHTSA, Fatality Analysis Reporting System Analytical User's Manual, 1975-2024 (DOT HS 813 794, April 2026), copied on 2 Oct 2026.

Weekday, time and road class

Table 5.Middlesex County: fatal crashes by weekday and time of day, 2015 to 2024
Weekday	Midnight to 6 a.m.	6 a.m. to noon	Noon to 6 p.m.	6 p.m. to midnight	All
Sunday	4	1 or 2	6	5	17
Monday	1 or 2	3	3	4	11
Tuesday	1 or 2	5	10	7	23
Wednesday	1 or 2	1 or 2	1 or 2	7	13
Thursday	5	1 or 2	15	5	26
Friday	1 or 2	6	5	3	15
Saturday	7	3	14	9	33
All days	21	22	55	40	138

Note: a cell with a stronger shade has a larger count. The table has the fatal crashes with a known hour and weekday.

Table 6.Middlesex County: fatal crashes by road function class, 2015 to 2024
Road function class	Fatal crashes	Share	Share in Connecticut
Interstate	25	18.0%	16.5%
Other freeways and expressways	23	16.5%	9.1%
Other principal arterial	20	14.4%	21.8%
Minor arterial	34	24.5%	30.5%
Major collector	16	11.5%	11.3%
Minor collector	1 or 2	1.4%	1.3%
Local	19	13.7%	9.6%
Not reported	1 or 2	n/a	n/a

Note: the classes are those of the Federal Highway Administration. The shares are of the crashes with a reported class. Road function classes

Light condition and weather

Table 7.Middlesex County: fatal crashes by light condition, 2015 to 2024
Light condition	Fatal crashes
Daylight	75
Dark, not lighted	35
Dark, lighted	24
Dawn	1 or 2
Dusk	5
Dark, lighting unknown	0
Other or unknown	0

Table 8.Middlesex County: fatal crashes by weather, 2015 to 2024
Weather	Fatal crashes
Clear	110
Cloudy	8
Rain	17
Snow, sleet or freezing rain	0
Fog, smog or smoke	1 or 2
Crosswinds or blowing sand/snow	1 or 2
Other or not reported	1 or 2

Routes in the county

Table 9.Signed routes in Middlesex County that have a page: fatal crashes, 2015 to 2024
Route	Type	In Middlesex	In all of Connecticut
Interstate 91	Interstate	15	119
Interstate 95	Interstate	9	155
State Route 9	State highway	23	33
State Route 66	State highway	12	21
US Route 1	US highway	4	90

Note: the table has each route with a page that has a fatal crash in the county, in name order. Local streets and county roads have no page. Their crashes are in the county totals. All routes in Connecticut

Adjacent counties

These lists are for navigation. They are in name order.

Figure 3.Middlesex County on the county map of Connecticut

Deaths for each 100,000 residents in a year, 2015 to 2024

Fewer than 105 counties
10 to 14.93 counties
15 to 19.90 counties
20 to 29.90 counties
30 or more0 counties
Middlesex County: 9.2

The limits of the classes are the same for every state. A county with few residents can show a high rate from few deaths. A class is not a judgement of a county. The full map and the table of counties of Connecticut

Table 10.Counties that share a boundary line with Middlesex County
County	State	Deaths, 2024	Deaths, 2015 to 2024	For each 100,000 residents in a year
Hartford County	Connecticut	88	721	8.1
New Haven County	Connecticut	81	810	9.5
New London County	Connecticut	35	281	10.5
Suffolk County	New York	120	1,389	9.2

Source of the list: Census Bureau county adjacency file, 2026 edition.

Counties of similar population

These counties of Connecticut have a population nearest to that of Middlesex County. The list is for navigation and is in name order. The number is the deaths from 2015 to 2024.

Official channels

NHTSA Fatality and Injury Reporting System Tool (FIRST)NHTSA's query tool for FARS counts.
NHTSA FARS EncyclopediaNHTSA's tables of FARS data.
Connecticut Department of TransportationThe highway safety office of Connecticut.

These links go to the sites of the agencies. They were checked on 2 Oct 2026.

Cite this page

Fatal Roads. Middlesex County, Connecticut: fatal crash statistics. https://fatalroads.com/county/ct/middlesex/. Source: National Highway Traffic Safety Administration, Fatality Analysis Reporting System, FARS 2024 annual file. Data to 31 Dec 2024.

The address of this page does not change.

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Source of the figures

Counts: National Highway Traffic Safety Administration, Fatality Analysis Reporting System, national files of 1975 to 2024. The factors use the vehicle and person files from 2015. Residents: Census Bureau, Population Estimates Program, vintage 2025. Map: Census Bureau cartographic boundary file, 2021 edition. Data to 31 Dec 2024. The figures are totals. No page of this site is about one crash or one person.

How the figures are made. Data sources and licences. Corrections.

Questions

How many deaths did FARS record in Middlesex in the ten years before 2015?

FARS records 157 deaths in Middlesex County from 2005 to 2014. It records 149 deaths from 2015 to 2024.

What was the rate of Middlesex in 2024?

The rate of Middlesex County in 2024 was 8.7 deaths for each 100,000 residents. The rate of Connecticut was 8.4. The rate of the United States was 11.5.

How many fatal crashes in Middlesex had a driver recorded as drinking?

FARS records a driver as drinking in 50 of 140 fatal crashes from 2015 to 2024. This count is not NHTSA's alcohol-impaired measure. NHTSA says that alcohol data is often missing, so the count may be too low.

How many fatal crashes did FARS record on signed routes in Middlesex?

5 signed routes in the county have a page. FARS records 63 fatal crashes on them in the county from 2015 to 2024. The table of routes on this page gives the count for each route.