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Fatal car crashes in New Hampshire, county by county

From 2020 through 2024, 628 people died in 580 crashes on New Hampshire roads. That is 8.9 deaths a year for every 100,000 residents, below the US rate of 12.1, and the 41st highest rate of the 50 states and DC.

Hillsborough County had the most deaths (137). The road stretch with the most fatal crashes was I-93 in Grafton County (14). In 2024, 133 people were killed, 28% more than in 2020.

Source: NHTSA Fatality Analysis Reporting System (FARS), 2020-2024 · checked October 2, 2026

628

people killed in crashes, 2020-2024

8.9

deaths a year per 100,000 residents, 41st highest of 51 (US 12.1)

64

pedestrians killed, 10% of deaths (US 18%)

31%

of fatal crashes were speeding-related (US 28%)

Death rate by county

Deaths a year per 100,000 residents, 2020-2024. Rural counties often rank highest: fewer people, faster roads and longer waits for an ambulance.

Belknap County: 13.8 per 100,000 a year, 45 deathsCarroll County: 18.6 per 100,000 a year, 49 deathsCheshire County: 10.2 per 100,000 a year, 40 deathsCoos County: 10.9 per 100,000 a year, 17 deathsGrafton County: 10.1 per 100,000 a year, 47 deathsHillsborough County: 6.4 per 100,000 a year, 137 deathsMerrimack County: 11.5 per 100,000 a year, 91 deathsRockingham County: 7.3 per 100,000 a year, 117 deathsStrafford County: 9.8 per 100,000 a year, 66 deathsSullivan County: 8.6 per 100,000 a year, 19 deaths
under 1010-1515-2020-3030+ too few crashes

The most dangerous roads in New Hampshire

Fatal crashes by road within each county, 2020-2024. A long interstate shows up once per county it crosses.

#RoadWhereFatal crashesDeaths
1 I-93 Grafton County, NH 14 15
2 SR-16 Carroll County, NH 12 15
3 US-3 Hooksett Rd Merrimack County, NH 12 14
4 I-93 Merrimack County, NH 11 11
5 Everett Tpke Hillsborough County, NH 10 11
6 I-293 Hillsborough County, NH 10 10
7 US-202 Strafford County, NH 9 10
8 US-3 Laconia Rd Belknap County, NH 8 10
9 SR-111 Rockingham County, NH 8 8
10 SR-125 Rockingham County, NH 8 8
11 I-93 Rockingham County, NH 7 10
12 SR-101 Rockingham County, NH 7 9
13 SR-11 Sullivan County, NH 7 9
14 SR-3A Merrimack County, NH 7 8
15 SR-12 Cheshire County, NH 7 7

Deaths by year

Every New Hampshire county

10 counties with 10 or more fatal crashes in five years, by deaths.

CountyDeaths 2020-24Per 100K a yearPedestriansPopulation
Hillsborough County 137 6.4 14 430,462
Rockingham County 117 7.3 7 322,433
Merrimack County 91 11.5 13 157,869
Strafford County 66 9.8 9 134,202
Carroll County 49 18.6 4 52,580
Grafton County 47 10.1 4 93,045
Belknap County 45 13.8 9 65,257
Cheshire County 40 10.2 1 78,078
Sullivan County 19 8.6 2 44,012
Coos County 17 10.9 1 31,094

What was involved

FactorNew HampshireShareUS
Speeding was a factor
a driver coded by police as speeding, racing or too fast for conditions		 181 31% 28%
A driver had been drinking
police reported alcohol involvement for at least one driver		 203 35% 26%
A large truck was involved
a truck over 10,000 lbs		 57 10% 13%
Hit-and-run
a driver left the scene		 10 2% 7%
Pedestrians killed
share of all deaths		 64 10% 18%
Motorcyclists killed
share of all deaths		 159 25% 15%
Bicyclists killed
share of all deaths		 12 2% 3%
Teens (15-19) killed
share of all deaths		 34 5% 7%

After a crash in New Hampshire

  1. Get the crash report

    Individual NH police departments also keep and sell their own reports (for example Concord Police Records takes requests in person, by mail or email, and a report may not be available immediately); the DMV is the statewide copy.

    How to get a New Hampshire crash report

  2. Know your deadline

    New Hampshire gives you three years to file a personal injury lawsuit (N.H. RSA 508:4, I). If a city, county or state vehicle was involved: To sue a city, town or other governmental unit for bodily injury or property damage, the clerk of that unit must be notified by registered mail within 60 days after the injury (or its discovery); suit must begin within 3 years.

    Work out your date

  3. Who pays

    New Hampshire is an at-fault state: the driver who caused the crash, through their liability insurance, pays for the injuries and damage.

    New Hampshire car accident laws

  4. If you were partly at fault

    You can recover if your fault is not greater than the defendant's (50% or less), with your award reduced by your share; above 50% you recover nothing.

    The rule and its statute

  5. The other driver’s minimum coverage

    The legal minimum liability coverage in New Hampshire is $25,000 per injured person, $50,000 per crash and $25,000 for property (25/50/25).

    Every state’s minimums

Check your deadline and a rough claim range

A filing date and a rough value range for New Hampshire. Both take under a minute.

Check my deadline Estimate my claim