Fatal crashes in Connecticut
In 2024, 310 people died in 285 fatal crashes on Connecticut roads, 0.6% more than in 2023. That is about 1 death a day, and 0.8% of all road deaths in the United States.
Connecticut ranks 35th of 51 by road deaths in 2024, and 43rd by deaths per resident. Every state in 2024.
Road deaths in Connecticut since 1975
Road deaths in Connecticut peaked in 1980 at 575; 2024's 310 is 46% below that. The lowest year was 2011 with 221. 2024 is 9% below 2000 and 20% below 1975.
| Year | Deaths | Fatal crashes | Change |
|---|---|---|---|
| 2024 | 310 | 285 | +0.6% |
| 2023 | 308 | 289 | -15.8% |
| 2022 | 366 | 332 | +20.8% |
| 2021 | 303 | 288 | +1.3% |
| 2020 | 299 | 284 | +20.1% |
| 2019 | 249 | 233 | -15.0% |
| 2018 | 293 | 275 | +4.3% |
| 2017 | 281 | 263 | -7.6% |
| 2016 | 304 | 292 | +12.6% |
| 2015 | 270 | 257 | +8.9% |
Show 1975 to 2014
| Year | Deaths | Fatal crashes | Change |
|---|---|---|---|
| 2014 | 248 | 234 | -13.3% |
| 2013 | 286 | 265 | +8.3% |
| 2012 | 264 | 248 | +19.5% |
| 2011 | 221 | 208 | -30.9% |
| 2010 | 320 | 299 | +42.9% |
| 2009 | 224 | 211 | -25.8% |
| 2008 | 302 | 279 | +2.0% |
| 2007 | 296 | 269 | -4.8% |
| 2006 | 311 | 293 | +11.9% |
| 2005 | 278 | 262 | -5.4% |
| 2004 | 294 | 280 | -1.3% |
| 2003 | 298 | 277 | -8.3% |
| 2002 | 325 | 301 | +2.2% |
| 2001 | 318 | 290 | -6.7% |
| 2000 | 341 | 317 | +13.3% |
| 1999 | 301 | 270 | -8.5% |
| 1998 | 329 | 306 | -2.9% |
| 1997 | 339 | 315 | +9.4% |
| 1996 | 310 | 296 | -2.2% |
| 1995 | 317 | 287 | +2.3% |
| 1994 | 310 | 284 | -9.4% |
| 1993 | 342 | 324 | +15.5% |
| 1992 | 296 | 266 | -4.5% |
| 1991 | 310 | 281 | -19.5% |
| 1990 | 385 | 358 | -5.2% |
| 1989 | 406 | 379 | -16.1% |
| 1988 | 484 | 446 | +7.8% |
| 1987 | 449 | 416 | -1.3% |
| 1986 | 455 | 429 | +1.6% |
| 1985 | 448 | 421 | -4.5% |
| 1984 | 469 | 433 | +7.1% |
| 1983 | 438 | 404 | -15.0% |
| 1982 | 515 | 464 | -0.6% |
| 1981 | 518 | 480 | -9.9% |
| 1980 | 575 | 520 | +1.2% |
| 1979 | 568 | 514 | +25.7% |
| 1978 | 452 | 423 | +2.5% |
| 1977 | 441 | 408 | +5.8% |
| 1976 | 417 | 372 | +7.2% |
| 1975 | 389 | 358 | No data |
Deaths within 30 days of a crash on a public road, as NHTSA counts them. 2024 is the latest year NHTSA has published; the 2024 figures are from the Annual Report File and may be revised when NHTSA releases the final file. The 2025 file is expected in spring 2027.
The deadliest roads and most dangerous highways in Connecticut
I-95 had the most fatal crashes of any numbered road in Connecticut from 2015 to 2024: 151, with 176 deaths. The 20 roads listed held 42% of all fatal crashes in Connecticut from 2015 to 2024; 4 are interstates, 6 US routes, 10 state highways. Interstate, US and state routes ranked by fatal crashes from 2015 to 2024; ramps and frontage roads are left out (26 crashes). Roads with 15 or more fatal crashes in 2022 to 2024 have their own page. Every numbered road in Connecticut, ranked.
| Road | Fatal crashes | Deaths | 2022 to 2024 | Counties with the most | |
|---|---|---|---|---|---|
| 1 | I-95 | 151 | 176 | 48 | Fairfield, New Haven, New London |
| 2 | I-84 | 118 | 133 | 41 | Hartford, New Haven, Fairfield |
| 3 | I-91 | 115 | 128 | 43 | New Haven, Hartford, Middlesex |
| 4 | US 1 | 91 | 93 | 33 | Fairfield, New Haven, New London |
| 5 | State Highway 8 | 87 | 97 | 29 | Fairfield, Litchfield, New Haven |
| 6 | US 6 | 86 | 94 | 30 | Windham, Hartford, Tolland |
| 7 | State Highway 15 | 71 | 78 | 20 | New Haven, Hartford, Fairfield |
| 8 | State Highway 10 | 64 | 65 | 21 | New Haven, Hartford |
| 9 | US 44 | 61 | 65 | 18 | Hartford, Litchfield, Windham |
| 10 | US 7 | 43 | 43 | 22 | Litchfield, Fairfield |
| 11 | State Highway 2 | 35 | 35 | 9 | Hartford, New London |
| 12 | I-395 | 34 | 37 | 11 | New London, Windham |
| 13 | State Highway 9 | 33 | 37 | 10 | Middlesex, Hartford |
| 14 | State Highway 32 | 32 | 34 | 10 | Tolland, New London, Windham |
| 15 | State Highway 34 | 29 | 32 | 11 | New Haven, Fairfield |
| 16 | US 5 | 29 | 30 | 13 | Hartford, New Haven |
| 17 | State Highway 69 | 24 | 26 | 10 | New Haven, Hartford |
| 18 | State Highway 63 | 22 | 23 | 7 | New Haven, Litchfield |
| 19 | State Highway 66 | 22 | 23 | 4 | Middlesex, Tolland, Windham |
| 20 | US 202 | 20 | 21 | 7 | Litchfield |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Download every numbered road in Connecticut as CSV. Free to reuse with credit: “Fatal Crash Data, fatalcrashdata.com/fatal-crashes/connecticut/, from NHTSA FARS (2024 Annual Report File).”
The deadliest counties in Connecticut
New Haven County had the most fatal crashes in Connecticut from 2015 to 2024: 759, with 810 deaths. New Haven, Hartford and Fairfield counties together held 69% of fatal crashes in Connecticut from 2015 to 2024. 8 counties in Connecticut recorded a fatal crash in those years; the 8 with the most are listed, with deaths per 100,000 residents where the county had 10 or more deaths in 2024.
The map has no shades for Connecticut: the Census Bureau has published no county populations for Connecticut since 2019, when it began to count the state by planning region, so no county has a rate over the ten years. The crash counts in the table are complete.
| County | 2024 | 2015 to 2024 | Deaths | Deaths per 100,000100K, 2024 | |
|---|---|---|---|---|---|
| 1 | New Haven County | 72 | 759 | 810 | No data |
| 2 | Hartford County | 81 | 673 | 721 | No data |
| 3 | Fairfield County | 50 | 485 | 516 | No data |
| 4 | New London County | 33 | 261 | 281 | No data |
| 5 | Litchfield County | 14 | 194 | 204 | No data |
| 6 | Windham County | 8 | 150 | 159 | No data |
| 7 | Middlesex County | 14 | 140 | 149 | No data |
| 8 | Tolland County | 13 | 136 | 143 | No data |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Download every county with a page as CSV. Free to reuse with credit: “Fatal Crash Data, fatalcrashdata.com/fatal-crashes/connecticut/, from NHTSA FARS (2024 Annual Report File).”
The deadliest counties in America: every county ranked nationally, and per resident
When fatal crashes happen in Connecticut
The heaviest slot is Saturday, 8 pm to midnight, with 123 fatal crashes from 2015 to 2024. The worst hour is 7 pm to 8 pm; the worst month is June.
| Midnight to 4 | 4 to 8 am | 8 to noon | Noon to 4 | 4 to 8 pm | 8 to midnight | |
|---|---|---|---|---|---|---|
| Sun | 4.2 percent, 117 fatal crashes | 2.0 percent, 56 fatal crashes | 1.0 percent, 29 fatal crashes | 2.8 percent, 76 fatal crashes | 3.3 percent, 90 fatal crashes | 3.4 percent, 94 fatal crashes |
| Mon | 1.8 percent, 51 fatal crashes | 1.2 percent, 32 fatal crashes | 1.3 percent, 35 fatal crashes | 2.3 percent, 64 fatal crashes | 2.9 percent, 80 fatal crashes | 2.3 percent, 63 fatal crashes |
| Tue | 1.0 percent, 29 fatal crashes | 1.4 percent, 38 fatal crashes | 1.7 percent, 46 fatal crashes | 2.2 percent, 61 fatal crashes | 3.7 percent, 103 fatal crashes | 1.8 percent, 51 fatal crashes |
| Wed | 1.1 percent, 30 fatal crashes | 1.5 percent, 41 fatal crashes | 1.4 percent, 38 fatal crashes | 2.2 percent, 60 fatal crashes | 2.9 percent, 81 fatal crashes | 3.3 percent, 90 fatal crashes |
| Thu | 1.7 percent, 47 fatal crashes | 1.2 percent, 34 fatal crashes | 1.4 percent, 38 fatal crashes | 3.0 percent, 84 fatal crashes | 3.8 percent, 105 fatal crashes | 3.2 percent, 89 fatal crashes |
| Fri | 1.8 percent, 51 fatal crashes | 1.0 percent, 28 fatal crashes | 1.9 percent, 52 fatal crashes | 2.5 percent, 69 fatal crashes | 3.4 percent, 95 fatal crashes | 4.2 percent, 116 fatal crashes |
| Sat | 4.2 percent, 116 fatal crashes | 1.9 percent, 52 fatal crashes | 1.4 percent, 38 fatal crashes | 2.4 percent, 67 fatal crashes | 3.8 percent, 104 fatal crashes | 4.5 percent, 123 fatal crashes |
By hour
By month
- Jan7.4%
- Feb6.4%
- Mar6.6%
- Apr7.5%
- May8.6%
- Jun9.9%
- Jul9.7%
- Aug9.4%
- Sep8.5%
- Oct9.3%
- Nov8.7%
- Dec7.9%
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Where fatal crashes happen in Connecticut: rural or urban, intersection, dark or daylight
14% of fatal crashes in Connecticut from 2015 to 2024 were on rural roads, below the US share of 43%; 23% happened at or near an intersection, below the US share of 25%; 17% in the dark on unlit roads, below the US share of 28%. Shares of fatal crashes from 2015 to 2024, against the share across the United States.
| Connecticut | US | ||
|---|---|---|---|
| On rural roads | 14% | 43% | below the US share |
| At or near an intersection | 23% | 25% | below the US share |
| In daylight | 45% | 46% | below the US share |
| In the dark, road lit | 33% | 21% | above the US share |
| In the dark, road unlit | 17% | 28% | below the US share |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Who died on Connecticut roads in 2024
Vehicle occupants were 55% of the 310 people killed on Connecticut roads in 2024; motorcyclists 24% (75), pedestrians 20% (61), cyclists 1.3% (4).
| Road user | Deaths | Share |
|---|---|---|
| Vehicle occupants | 169 | 55% |
| Motorcyclists | 75 | 24% |
| Pedestrians | 61 | 20% |
| Cyclists | 4 | 1.3% |
| Others (on personal conveyances, in parked vehicles, in buildings) | 1 | 0.3% |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
How fatal crashes happen in Connecticut: alcohol, speeding, seat belts, hit-and-run
A drinking driver was recorded in 34% of fatal crashes in Connecticut from 2015 to 2024, above the US share of 26%; speeding in 33%, above the US share of 27%; a hit-and-run in 8.5%, above the US share of 6.5%; a driver recorded as distracted in 3.4%, below the US share of 8.7%; 50% of passenger-vehicle occupants killed with belt use known were unbelted, above the US share of 49%.
Shares of fatal crashes from 2015 to 2024 with the factor recorded, against the US share. "A drinking driver" is NHTSA's drinking-driver flag (police-reported drinking or any positive alcohol test), not its "alcohol-impaired" figure. "Unbelted" is the share of passenger-vehicle occupants killed whose belt use is known (1,349 in Connecticut).
| Connecticut | US | ||
|---|---|---|---|
| A drinking driver | 34% | 26% | above the US share |
| Speeding | 33% | 27% | above the US share |
| A distracted driver (as recorded) | 3.4% | 8.7% | below the US share |
| Occupants killed unbelted | 50% | 49% | above the US share |
| Hit-and-run | 8.5% | 6.5% | above the US share |
| A motorcycle involved | 21% | 16% | above the US share |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
What the first harmful event was
The first harmful event was a collision with another vehicle in 38%; a fixed object such as a tree, pole or barrier in 34%, a pedestrian in 18%, a rollover in 3.6%. What each fatal crash first hit, 2015 to 2024.
| First harmful event | Fatal crashes | Share |
|---|---|---|
| Collision with another vehicle | 1,056 | 38% |
| Fixed object (tree, pole, barrier, ditch) | 950 | 34% |
| Pedestrian | 505 | 18% |
| Other | 108 | 3.9% |
| Rollover | 102 | 3.6% |
| Parked vehicle | 39 | 1.4% |
| Cyclist | 38 | 1.4% |
| Not reported | 0 | 0.0% |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Vehicles in fatal crashes in Connecticut
Cars were 46% of the 4,151 vehicles in fatal crashes in Connecticut from 2015 to 2024, SUVs 20%, motorcycles 15%, pickups 7.9%. Every vehicle in a fatal crash from 2015 to 2024, by body type.
| Type | Vehicles | Share |
|---|---|---|
| Cars | 1,916 | 46% |
| SUVs | 823 | 20% |
| Motorcycles | 613 | 15% |
| Pickups | 330 | 7.9% |
| Other trucks | 164 | 4.0% |
| Vans | 147 | 3.5% |
| Truck-tractors | 139 | 3.3% |
| Buses | 19 | 0.5% |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Road deaths in Connecticut per resident and per mile driven
| Connecticut | US | ||
|---|---|---|---|
| Deaths per 100,000 residents, 2024 | 8.4 | 11.5 | below the US rate |
| Deaths per 100,000 residents a year, 2015 to 2024 | 8.3 | 11.8 | below the US rate |
| Deaths per 100 million vehicle-miles, 2024 | 1.00 | 1.19 | below the US rate |
Population 3,675,069 (Census Bureau estimate, 2024); 30,947 million vehicle-miles (FHWA Highway Statistics 2024, table VM-2). The only figures on this page not counted from FARS.
Questions about fatal crashes in Connecticut
- How many people died in car accidents in Connecticut in 2024?
- 310 people died in 285 fatal crashes on Connecticut roads in 2024, 0.6% more than in 2023. That is 8.4 deaths per 100,000 residents, against 11.5 across the United States. Source: NHTSA's Fatality Analysis Reporting System (FARS).
- What is the deadliest road in Connecticut?
- I-95 had the most fatal crashes of any numbered road in Connecticut from 2015 to 2024: 151, with 176 deaths. I-84 was second with 118.
- Which county in Connecticut has the most fatal crashes?
- New Haven County, with 759 fatal crashes and 810 deaths from 2015 to 2024, 72 of them in 2024.
- When do fatal crashes in Connecticut happen most often?
- The heaviest slot from 2015 to 2024 was Saturday, 8 pm to midnight, with 123 fatal crashes.
- How many fatal crashes in Connecticut involved a drinking driver?
- 961 of 2,798 fatal crashes in Connecticut from 2015 to 2024 involved a driver NHTSA recorded as drinking, 34%, against 26% across the United States.
County pages for Connecticut
Every county in Connecticut with 30 or more fatal crashes from 2015 to 2024, each with its crashes by year, roads, hour and weekday, and deaths per 100,000 residents.
- New Haven County 759
- Hartford County 673
- Fairfield County 485
- New London County 261
- Litchfield County 194
- Windham County 150
- Middlesex County 140
- Tolland County 136
Road pages for Connecticut
Every numbered road in Connecticut with 15 or more fatal crashes from 2022 to 2024, each with its crashes by year, county, hour and weekday.
Where the Connecticut numbers come from
Every figure on this page except the rates is counted from NHTSA's Fatality Analysis Reporting System, the federal census of fatal crashes on US public roads, 2024 Annual Report File. A fatal crash is one in which someone died within 30 days. Road names are normalised ("I-35", "I 35" and "I-35/PURPLE HEART TRL" are the same road); frontage roads and ramps ("I35 FRONTAGE") are left out of road counts. Totals from the state highway department and news reports can differ by a few: they count from the state's own crash reports, often before every death within 30 days is known, while NHTSA's file is checked and revised once a year. Fields NHTSA coded as unknown show as "Not reported"; a share is only given over 20 crashes, otherwise "Not enough data". Rates per resident and per mile use Census Bureau population estimates and FHWA vehicle-miles, the only figures not counted from FARS. The full method.