Fatal crashes in Merrimack County, New Hampshire
In 2024, 20 people died in 20 fatal crashes in Merrimack County, New Hampshire, the same as in 2023. From 2015 to 2024 the county recorded 164 fatal crashes and 173 deaths, the 3rd most of 10 counties in New Hampshire.
12.7 deaths per 100,000 residents, against 9.4 across New Hampshire in 2024; 11.3 against 9 a year over 2015 to 2024. Population 157,869, Census Bureau estimate. All fatal crashes in New Hampshire.
Deaths in Merrimack County by year
| Year | Fatal crashes | Deaths |
|---|---|---|
| 2024 | 20 | 20 |
| 2023 | 18 | 20 |
| 2022 | 19 | 20 |
| 2021 | 10 | 11 |
| 2020 | 19 | 20 |
| 2019 | 14 | 17 |
| 2018 | 23 | 24 |
| 2017 | 12 | 12 |
| 2016 | 13 | 13 |
| 2015 | 16 | 16 |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
The deadliest roads in Merrimack County
I-93 had the most fatal crashes of any numbered road in Merrimack County from 2015 to 2024: 26, with 27 deaths. The 9 roads listed held 62% of all fatal crashes in Merrimack County from 2015 to 2024; 2 are interstates, 2 US routes, 5 state highways. 76% of the county's fatal crashes were on an interstate, US or state route; the other 24% were on county roads and city streets. Routes are listed from 5 fatal crashes.
| Road | Fatal crashes | Deaths | 2022 to 2024 | ||
|---|---|---|---|---|---|
| 1 | I-93 | 26 | 27 | 9 | |
| 2 | US 3 | 17 | 19 | 9 | |
| 3 | I-89 | 12 | 15 | 2 | no page |
| 4 | State Highway 106 | 10 | 11 | 3 | no page |
| 5 | State Highway 3A | 10 | 11 | 6 | no page |
| 6 | State Highway 28 | 10 | 10 | 4 | no page |
| 7 | US 4 | 6 | 7 | 2 | no page |
| 8 | State Highway 11 | 6 | 6 | 1 | no page |
| 9 | State Highway 4 | 5 | 5 | 0 | no page |
Concord had 21% of the county's fatal crashes from 2015 to 2024, 35 of 164.
Cities NHTSA filed, with their fatal crashes from 2015 to 2024: Concord 35, Hooksett 17, Canterbury 10, Epsom 9, Chichester 8, Loudon 8, Bow 8, Northfield 6. The city is not filed for crashes outside a city.
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 Merrimack County
164 fatal crashes in Merrimack County, New Hampshire from 2015 to 2024 have a known time, too few for any one weekday and time of day to stand out. The worst hour is 4 pm to 5 pm; the worst month is September.
| Midnight to 4 | 4 to 8 am | 8 to noon | Noon to 4 | 4 to 8 pm | 8 to midnight | |
|---|---|---|---|---|---|---|
| Sun | 2.4 percent, 4 fatal crashes | 2.4 percent, 4 fatal crashes | 4.3 percent, 7 fatal crashes | 3.0 percent, 5 fatal crashes | 5.5 percent, 9 fatal crashes | 3.7 percent, 6 fatal crashes |
| Mon | 0.6 percent, 1 fatal crash | 1.8 percent, 3 fatal crashes | 2.4 percent, 4 fatal crashes | 4.9 percent, 8 fatal crashes | 4.9 percent, 8 fatal crashes | 3.0 percent, 5 fatal crashes |
| Tue | 0.6 percent, 1 fatal crash | 1.2 percent, 2 fatal crashes | 1.8 percent, 3 fatal crashes | 1.2 percent, 2 fatal crashes | 0.6 percent, 1 fatal crash | 2.4 percent, 4 fatal crashes |
| Wed | 0.0 percent, 0 fatal crashes | 1.2 percent, 2 fatal crashes | 1.2 percent, 2 fatal crashes | 5.5 percent, 9 fatal crashes | 5.5 percent, 9 fatal crashes | 1.2 percent, 2 fatal crashes |
| Thu | 1.2 percent, 2 fatal crashes | 1.2 percent, 2 fatal crashes | 1.2 percent, 2 fatal crashes | 2.4 percent, 4 fatal crashes | 4.3 percent, 7 fatal crashes | 1.2 percent, 2 fatal crashes |
| Fri | 1.2 percent, 2 fatal crashes | 1.2 percent, 2 fatal crashes | 3.0 percent, 5 fatal crashes | 3.7 percent, 6 fatal crashes | 4.3 percent, 7 fatal crashes | 3.7 percent, 6 fatal crashes |
| Sat | 1.2 percent, 2 fatal crashes | 0.6 percent, 1 fatal crash | 1.8 percent, 3 fatal crashes | 1.8 percent, 3 fatal crashes | 3.7 percent, 6 fatal crashes | 0.6 percent, 1 fatal crash |
By hour
By month
- Jan4.3%
- Feb6.7%
- Mar4.9%
- Apr9.8%
- May7.3%
- Jun7.9%
- Jul11.6%
- Aug6.7%
- Sep15.2%
- Oct9.8%
- Nov5.5%
- Dec10.4%
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
What fatal crashes in Merrimack County first hit
The first harmful event was a fixed object such as a tree, pole or barrier in 36%; a collision with another vehicle in 34%, a pedestrian in 13%, a rollover in 6.7%.
| First harmful event | Fatal crashes | Share |
|---|---|---|
| Fixed object (tree, pole, barrier, ditch) | 59 | 36% |
| Collision with another vehicle | 55 | 34% |
| Pedestrian | 21 | 13% |
| Rollover | 11 | 6.7% |
| Other | 10 | 6.1% |
| Cyclist | 4 | 2.4% |
| Parked vehicle | 4 | 2.4% |
| 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
How fatal crashes in Merrimack County compare with New Hampshire
From 2015 to 2024, every share for Merrimack County is within chance of the New Hampshire share. Shares of fatal crashes from 2015 to 2024, against the share across all of New Hampshire. A share is only given over 20 crashes; above or below means more than chance would give on 164 crashes.
| Merrimack | New Hampshire | ||
|---|---|---|---|
| On rural roads | 57% | 53% | about the same as the New Hampshire share |
| At or near an intersection | 17% | 18% | about the same as the New Hampshire share |
| In the dark, road unlit | 26% | 25% | about the same as the New Hampshire share |
| A drinking driver | 29% | 33% | about the same as the New Hampshire share |
| Speeding | 39% | 40% | about the same as the New Hampshire share |
| A distracted driver (as recorded) | 7.3% | 6.7% | about the same as the New Hampshire share |
| Occupants killed unbelted | 63% | 69% | about the same as the New Hampshire share |
| Hit-and-run | 0.6% | 1.8% | about the same as the New Hampshire share |
| A motorcycle involved | 21% | 23% | about the same as the New Hampshire share |
| Pedestrians among the dead | 13% | 9.7% | about the same as the New Hampshire share |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Questions about fatal crashes in Merrimack County, New Hampshire
- How many people died in car accidents in Merrimack County in 2024?
- 20 people died in 20 fatal crashes in Merrimack County, New Hampshire, in 2024, the same as in 2023. That is 12.7 deaths per 100,000 residents, against 9.4 across New Hampshire. Source: NHTSA's Fatality Analysis Reporting System (FARS).
- What is the deadliest road in Merrimack County?
- I-93 had the most fatal crashes of any numbered road in Merrimack County from 2015 to 2024: 26, with 27 deaths.
- How many fatal crashes in Merrimack County involved a drinking driver?
- 47 of 164 fatal crashes in Merrimack County from 2015 to 2024 involved a driver NHTSA recorded as drinking, 29%, against 33% across New Hampshire.
Other counties in New Hampshire with a page
- Hillsborough County
- Rockingham County
- Strafford County
- Grafton County
- Belknap County
- Carroll County
- Cheshire County
All fatal crashes in New Hampshire, with every county ranked.
Where the Merrimack County numbers come from
Counted from NHTSA's Fatality Analysis Reporting System, 2024 Annual Report File: every fatal crash NHTSA filed in Merrimack County (county code 13). A fatal crash is one in which someone died within 30 days. The rate per 100,000 uses the Census Bureau's population estimate for the county; it is the only figure here not counted from FARS. Totals from state highway departments and news reports can differ: they count from their own crash reports, often before every death within 30 days is known, while NHTSA's file is checked against death certificates and revised once a year. The full method.
Download every county with a page as CSV. Free to reuse with credit: “Fatal Crash Data, fatalcrashdata.com/fatal-crashes/new-hampshire/merrimack-county/, from NHTSA FARS (2024 Annual Report File).”