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.
Road deaths in Connecticut since 1975
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 in Connecticut
I-95 had the most fatal crashes of any numbered road in Connecticut from 2015 to 2024: 151, with 176 deaths. 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.
| 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
The deadliest counties in Connecticut
New Haven County had the most fatal crashes in Connecticut from 2015 to 2024: 759, with 810 deaths. 8 counties in Connecticut recorded a fatal crash in those years; the 8 with the most are listed.
| County | 2024 | 2015 to 2024 | Deaths | |
|---|---|---|---|---|
| 1 | New Haven | 72 | 759 | 810 |
| 2 | Hartford | 81 | 673 | 721 |
| 3 | Fairfield | 50 | 485 | 516 |
| 4 | New London | 33 | 261 | 281 |
| 5 | Litchfield | 14 | 194 | 204 |
| 6 | Windham | 8 | 150 | 159 |
| 7 | Middlesex | 14 | 140 | 149 |
| 8 | Tolland | 13 | 136 | 143 |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
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
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
| 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
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 |
| 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
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
Every vehicle in a fatal crash from 2015 to 2024, by body type (4,151 vehicles).
| 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 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 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 ("I35 FRONTAGE" and "I-35" are the same road; frontage roads and ramps are left out of road counts). Fields NHTSA coded as unknown show as "Not reported"; a share is only given over 20 crashes, otherwise "Not enough data". The full method.