States › Connecticut › 2021
Connecticut in 2021
Deaths 303Fatal crashes 288Per 100,000 8.4US deaths 43,230
FARS data are based on police crash reports and other sources; the drunk-driving measure is based on the highest BAC of any driver in the crash. Final FARS file for 2021.
In 2021, 303 people died in 288 fatal crashes in Connecticut, 8.4 deaths per 100,000 residents against 13.0 nationally.
The death toll was about level between 2020 (299) and 2021 (303).
Connecticut accounted for 0.7% of the 43,230 crash deaths recorded nationally that year.
36.1% of the state's fatal crashes that year had at least one driver reported as drinking.
By FHWA road function class, the largest share was on minor arterial roads (27%).
39% of the crashes happened between 6pm to midnight; Saturday was the most common day.
Compared with 2020 and the nation
| Measure | Connecticut 2021 | Connecticut 2020 | United States 2021 |
|---|---|---|---|
| Deaths | 303 | 299 | 43,230 |
| Fatal crashes | 288 | 284 | 39,785 |
| Deaths per 100,000 residents | 8.4 | 8.4 | 13.0 |
| Crashes with a drinking driver | 36% | 36% | 26% |
Counties in 2021
Every county with a fatal crash in 2021, by deaths. Counts under three are shown as "1–2" (small-count rule); the per-100,000 column is blank for them. 8 counties listed.
| County | Fatal crashes | Deaths | Per 100,000 | Deaths 2015–2024 |
|---|---|---|---|---|
| New Haven County | 84 | 89 | 10.4 | 810 |
| Hartford County | 83 | 89 | 10.0 | 721 |
| Fairfield County | 37 | 38 | 4.0 | 516 |
| New London County | 25 | 27 | 10.2 | 281 |
| Litchfield County | 18 | 18 | 10.0 | 204 |
| Tolland County | 16 | 16 | 10.6 | 143 |
| Windham County | 15 | 16 | 13.7 | 159 |
| Middlesex County | 10 | 10 | 6.2 | 149 |
Per 100,000 uses the 2024 population estimate for every year, so early-year rates are understated where a county has grown.
Hour of day
Weekday
Road type
Questions and answers
How many people died in crashes in Connecticut in 2021?
303 people in 288 fatal crashes, according to NHTSA's FARS 2021 file, or 8.4 per 100,000 residents.
Which county in Connecticut had the most crash deaths in 2021?
New Haven County with 89 deaths in 84 fatal crashes. The table on this page lists every county with a fatal crash that year.
How did 2021 compare with 2020 in Connecticut?
303 deaths against 299 in 2020 (+1%). Nationally the 2021 total was 43,230.
Provenance
Source: NHTSA Fatality Analysis Reporting System, 2021 national file (accident table, vehicle and person tables); US Census Bureau population estimates. Data through 31 Dec 2024; generated 30 Sep 2026.