Quick answer
According to crimebycity.com's analysis of NHTSA data, Connecticut recorded 1,586 traffic deaths in 1,478 fatal crashes from 2020 to 2024 — 8.8 per 100,000 residents per year, ranking #44 of 50 states (most dangerous first); the US average is 12.3.
Traffic Deaths 2020–2024
Deaths per 100K per Year
State Rank
Connecticut Traffic Deaths by Year
The Most Dangerous Connecticut Cities to Drive In
All 59 ranked Connecticut cities by Road Danger Score (5-year traffic deaths per 100,000 residents, most dangerous first).
| # | City | Danger Score | Deaths (2020–2024) | Deaths per 100K/yr |
|---|---|---|---|---|
| 1 | Cromwell | 89/100 | 12 | 16.7 |
| 2 | Seymour | 88/100 | 14 | 16.4 |
| 3 | Berlin | 87/100 | 16 | 15.6 |
| 4 | Windsor | 85/100 | 22 | 15.0 |
| 5 | North Haven | 85/100 | 18 | 14.8 |
| 6 | Wethersfield | 83/100 | 19 | 14.0 |
| 7 | Trumbull | 82/100 | 26 | 13.9 |
| 8 | Hartford | 82/100 | 82 | 13.7 |
| 9 | North Branford | 81/100 | 9 | 13.4 |
| 10 | Waterbury | 79/100 | 75 | 13.0 |
| 11 | New Haven | 79/100 | 89 | 13.0 |
| 12 | Plainville | 78/100 | 11 | 12.6 |
| 13 | Groton Town | 76/100 | 17 | 12.2 |
| 14 | New Milford | 75/100 | 17 | 12.0 |
| 15 | Stonington | 75/100 | 11 | 11.9 |
| 16 | East Hartford | 74/100 | 30 | 11.9 |
| 17 | Wallingford | 72/100 | 25 | 11.5 |
| 18 | Shelton | 71/100 | 24 | 11.3 |
| 19 | Derby | 71/100 | 7 | 11.3 |
| 20 | Orange | 70/100 | 8 | 11.1 |
| 21 | Southington | 69/100 | 24 | 10.9 |
| 22 | Suffield | 66/100 | 8 | 10.2 |
| 23 | Guilford | 65/100 | 11 | 10.0 |
| 24 | Vernon | 63/100 | 15 | 9.8 |
| 25 | Meriden | 63/100 | 29 | 9.7 |
| 26 | Rocky Hill | 62/100 | 10 | 9.7 |
| 27 | Middletown | 56/100 | 21 | 8.7 |
| 28 | Milford | 56/100 | 23 | 8.7 |
| 29 | Newtown | 55/100 | 12 | 8.6 |
| 30 | Glastonbury | 55/100 | 15 | 8.5 |
| 31 | West Haven | 54/100 | 23 | 8.4 |
| 32 | Bristol | 52/100 | 25 | 8.1 |
| 33 | Bridgeport | 51/100 | 59 | 8.0 |
| 34 | Enfield | 50/100 | 16 | 7.9 |
| 35 | Branford | 50/100 | 11 | 7.9 |
| 36 | Cheshire | 47/100 | 11 | 7.5 |
| 37 | Farmington | 47/100 | 10 | 7.4 |
| 38 | Clinton | 47/100 | 5 | 7.4 |
| 39 | Hamden | 46/100 | 22 | 7.3 |
| 40 | Wolcott | 46/100 | 6 | 7.3 |
| 41 | East Haven | 46/100 | 10 | 7.3 |
| 42 | Stratford | 45/100 | 19 | 7.2 |
| 43 | Norwich | 44/100 | 14 | 7.0 |
| 44 | Manchester | 42/100 | 20 | 6.7 |
| 45 | South Windsor | 42/100 | 9 | 6.7 |
| 46 | New Britain | 42/100 | 25 | 6.7 |
| 47 | Bloomfield | 39/100 | 7 | 6.4 |
| 48 | Westport | 35/100 | 8 | 5.8 |
| 49 | Ridgefield | 33/100 | 7 | 5.6 |
| 50 | Watertown | 30/100 | 6 | 5.4 |
| 51 | Avon | 29/100 | 5 | 5.3 |
| 52 | Stamford | 27/100 | 35 | 5.1 |
| 53 | New London | 26/100 | 7 | 5.0 |
| 54 | Greenwich | 24/100 | 15 | 4.7 |
| 55 | West Hartford | 23/100 | 15 | 4.7 |
| 56 | Newington | 22/100 | 7 | 4.4 |
| 57 | Danbury | 20/100 | 18 | 4.2 |
| 58 | Simsbury | 18/100 | 5 | 4.0 |
| 59 | Norwalk | 15/100 | 16 | 3.4 |
Frequently Asked Questions
How many car accidents happen in Connecticut?
NHTSA's Fatality Analysis Reporting System recorded 1,478 fatal car accidents in Connecticut from 2020 to 2024, killing 1,586 people — an average of 317 traffic deaths per year.
How dangerous are Connecticut roads compared to other states?
Connecticut averages 8.8 traffic deaths per 100,000 residents per year, ranking #44 of 50 states (most dangerous first). The US average is 12.3 per 100,000.
What causes fatal car accidents in Connecticut?
Of Connecticut's fatal crashes in 2020–2024, 34% involved a drinking driver, 37% involved speeding, and 51% happened in dark conditions.
Which Connecticut city is the most dangerous to drive in?
Among ranked Connecticut cities, Cromwell has the highest Road Danger Score (89/100) at 16.7 traffic deaths per 100,000 residents per year.