Quick answer
According to crimebycity.com's analysis of NHTSA Fatality Analysis Reporting System data, Merrimack, NH recorded 9 traffic deaths in 8 fatal crashes from 2020 to 2024 — 6.1 deaths per 100,000 residents per year vs the US average of 12.3. Its Road Danger Score of 37/100 means a higher traffic-fatality rate than about 37% of ranked US cities (#13 of 18 in New Hampshire, most dangerous first).
Road Danger Score
Traffic Deaths per 100K
Fatal Crashes 2020–2024
How Dangerous Are the Roads in Merrimack, New Hampshire?
Merrimack has a Road Danger Score of 37/100 (Safer Roads Than Most Cities). Over the five years from 2020 to 2024, federal crash data recorded 8 fatal motor-vehicle crashes in the city, killing 9 people — 6.1 traffic deaths per 100,000 residents per year, below the national average of 12.3.
Merrimack ranks #13 out of 18 ranked cities in New Hampshire and #1,360 out of 2,153 nationally for road danger (most dangerous first). The score is a percentile: a higher traffic-fatality rate than about 37% of ranked US cities.
Traffic deaths in Merrimack fell 50% comparing 2020–2021 with 2023–2024.
What’s Behind Merrimack’s Fatal Crashes (2020–2024)
Share of the city’s 8 fatal crashes where each factor was recorded. Factors overlap, so shares don’t sum to 100%.
| Crash Factor | Fatal Crashes | Merrimack | National Avg |
|---|---|---|---|
| Drinking driver involved | 2 | 25.0% | 25.9% |
| Speeding involved | 0 | 0.0% | 28.2% |
| Pedestrian or cyclist involved | 0 | 0.0% | 22.5% |
| Dark / nighttime conditions | 3 | 37.5% | 49.8% |
Merrimack Traffic Deaths by Year
Annual traffic fatalities in Merrimack, New Hampshire from NHTSA FARS. Single-year swings are normal in smaller cities; the Road Danger Score uses the full 5-year window.
| Year | Traffic Deaths |
|---|---|
| 2024 | 1 |
| 2023 | 2 |
| 2022 | 0 |
| 2021 | 3 |
| 2020 | 3 |
Frequently Asked Questions
How many fatal car accidents happen in Merrimack, New Hampshire?
According to NHTSA FARS data, Merrimack recorded 8 fatal car accidents between 2020 and 2024, resulting in 9 traffic deaths — an average of 1.8 deaths per year.
How dangerous are the roads in Merrimack?
Merrimack has a Road Danger Score of 37/100, meaning its traffic-fatality rate is higher than about 37% of ranked US cities. The city averages 6.1 traffic deaths per 100,000 residents per year, compared to the US average of 12.3.
What causes fatal car accidents in Merrimack?
Of Merrimack's fatal crashes in 2020–2024, 25% involved a drinking driver, 0% involved speeding, 0% involved a pedestrian or cyclist, and 38% happened in dark conditions.
How many people die in car accidents in Merrimack each year?
An average of 1.8 people per year died in car accidents in Merrimack across 2020–2024 (9 total), based on the federal Fatality Analysis Reporting System.
Is driving in Merrimack more dangerous than in other New Hampshire cities?
Merrimack ranks #13 of 18 ranked New Hampshire cities for road danger (most dangerous first) and #1,360 of 2,153 nationally.