Counties in New Hampshire by traffic fatality rate

Coos County had the highest traffic fatality rate of 10 counties in 2019, at 31.8 per 100,000 people. Strafford County had the lowest, at 2.3 per 100,000 people. The median was 6.7 per 100,000 people and the figure for New Hampshire was 7.4 per 100,000 people. Source: NHTSA and BEA.

Keep it in a collection in your library.
Highest31.8Coos County
Median6.710 counties
New Hampshire7.4History

Map of counties, 2019

Belknap County: 6.3 per 100,000 peopleCarroll County: 10.1 per 100,000 peopleCheshire County: 3.9 per 100,000 peopleCoos County: 31.8 per 100,000 peopleGrafton County: 9.9 per 100,000 peopleHillsborough County: 6.4 per 100,000 peopleMerrimack County: 11.1 per 100,000 peopleRockingham County: 6.4 per 100,000 peopleStrafford County: 2.3 per 100,000 peopleSullivan County: 7 per 100,000 people
  • Under 5.8
  • 5.8 to 6.4
  • 6.4 to 8.1
  • 8.1 to 10
  • 10 and over
per 100,000 people, 2019. Source: Invokely calculation with data from NHTSA, BEA. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2019

Coos County: 31.8 per 100,000 peopleCoos County31.8Merrimack County: 11.1 per 100,000 peopleMerrimack County11.1Carroll County: 10.1 per 100,000 peopleCarroll County10.1Grafton County: 9.9 per 100,000 peopleGrafton County9.9Sullivan County: 7 per 100,000 peopleSullivan County7Hillsborough County: 6.4 per 100,000 peopleHillsborough County6.4Rockingham County: 6.4 per 100,000 peopleRockingham County6.4Belknap County: 6.3 per 100,000 peopleBelknap County6.3Cheshire County: 3.9 per 100,000 peopleCheshire County3.9Strafford County: 2.3 per 100,000 peopleStrafford County2.3Coos County: 31.8 per 100,000 peopleCoos County31.8Merrimack County: 11.1 per 100,000 peopleMerrimack County11.1Carroll County: 10.1 per 100,000 peopleCarroll County10.1Grafton County: 9.9 per 100,000 peopleGrafton County9.9Sullivan County: 7 per 100,000 peopleSullivan County7Hillsborough County: 6.4 per 100,000 peopleHillsborough County6.4Rockingham County: 6.4 per 100,000 peopleRockingham County6.4Belknap County: 6.3 per 100,000 peopleBelknap County6.3Cheshire County: 3.9 per 100,000 peopleCheshire County3.9Strafford County: 2.3 per 100,000 peopleStrafford County2.3
per 100,000 people. Source: Invokely calculation with data from NHTSA, BEA. Retrieved 2026-10-12.

Full ranking

RankCounties2019
per 100,000 people
Change on 2018
1Coos County31.8+12.8 pts
2Merrimack County11.1-4.7 pts
3Carroll County10.1-8.1 pts
4Grafton County9.9-3.3 pts
5Sullivan County7-11.6 pts
6Hillsborough County6.4-0 pts
7Rockingham County6.4-2.9 pts
8Belknap County6.3-14.3 pts
9Cheshire County3.9-6.6 pts
10Strafford County2.3-6.2 pts

Other periods

About this ranking

Traffic fatalities (NHTSA FARS) per 100,000 residents in the same year and place.

Deaths are counted where the crash happened and divided by the resident population, so counties with busy highways and few residents can show very high rates. Differs from the WHO road traffic death rate (road_traffic_death_rate).

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

Invokely calculation from NHTSA FARS traffic fatalities divided by BEA mid-year population (SAINC1 and CAINC1), per 100,000 residents. https://invokely.ai/docs/methodology#traffic_fatality_rate_per_100k. Retrieved 2026-10-12.

Citation styles

Invokely calculated this figure from the publishers' data, so Invokely is the author and the publishers of the inputs are named.

APA 7

Invokely. (n.d.). NHTSA FARS traffic fatalities divided by BEA mid-year population (SAINC1 and CAINC1), per 100,000 residents (Counties in New Hampshire by traffic fatality rate, 2019) [Data set]. Calculated from data by NHTSA and BEA. Retrieved October 12, 2026, from https://invokely.ai/docs/methodology#traffic_fatality_rate_per_100k

MLA 9

NHTSA FARS traffic fatalities divided by BEA mid-year population (SAINC1 and CAINC1), per 100,000 residents, Counties in New Hampshire by traffic fatality rate, 2019. Calculated from data by NHTSA and BEA. Invokely, https://invokely.ai/docs/methodology#traffic_fatality_rate_per_100k. Accessed 12 Oct. 2026.

Chicago (author-date)

Invokely. n.d. NHTSA FARS traffic fatalities divided by BEA mid-year population (SAINC1 and CAINC1), per 100,000 residents. Counties in New Hampshire by traffic fatality rate, 2019. Dataset. Calculated from data by NHTSA and BEA. Accessed October 12, 2026. https://invokely.ai/docs/methodology#traffic_fatality_rate_per_100k.

Harvard

Invokely (no date) NHTSA FARS traffic fatalities divided by BEA mid-year population (SAINC1 and CAINC1), per 100,000 residents, Counties in New Hampshire by traffic fatality rate, 2019 [Dataset]. Calculated from data by NHTSA and BEA. Available at: https://invokely.ai/docs/methodology#traffic_fatality_rate_per_100k (Accessed: 12 October 2026).

BibTeX
@misc{invokely_counties_in_new_hampshire_2019,
  author = {{Invokely}},
  title = {{NHTSA FARS traffic fatalities divided by BEA mid-year population (SAINC1 and CAINC1), per 100,000 residents: Counties in New Hampshire by traffic fatality rate, 2019}},
  howpublished = {Data set},
  url = {https://invokely.ai/docs/methodology#traffic_fatality_rate_per_100k},
  urldate = {2026-10-12},
  note = {Calculated from data by NHTSA and BEA. Accessed via Invokely, https://invokely.ai/rankings/traffic-fatality-rate/new-hampshire-counties?period=2019. Publisher attribution: Invokely calculation from NHTSA FARS traffic fatalities divided by BEA mid-year population (SAINC1 and CAINC1), per 100,000 residents. https://invokely.ai/docs/methodology\#traffic\_fatality\_rate\_per\_100k. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - Invokely
TI  - NHTSA FARS traffic fatalities divided by BEA mid-year population (SAINC1 and CAINC1), per 100,000 residents: Counties in New Hampshire by traffic fatality rate, 2019
PB  - Invokely
DB  - Invokely
UR  - https://invokely.ai/docs/methodology#traffic_fatality_rate_per_100k
L2  - https://invokely.ai/rankings/traffic-fatality-rate/new-hampshire-counties?period=2019
Y2  - 2026/10/12
N1  - Calculated from data by NHTSA and BEA.
N1  - Accessed via Invokely, https://invokely.ai/rankings/traffic-fatality-rate/new-hampshire-counties?period=2019.
N1  - Publisher attribution: Invokely calculation from NHTSA FARS traffic fatalities divided by BEA mid-year population (SAINC1 and CAINC1), per 100,000 residents. https://invokely.ai/docs/methodology#traffic_fatality_rate_per_100k. Retrieved 2026-10-12.
ER  - 
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Rank Counties in New Hampshire by traffic fatality rate using official data, and cite the source.
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Questions

Which county has the highest traffic fatality rate?

Coos County, with 31.8 per 100,000 people in 2019, according to NHTSA and BEA.

Which county has the lowest traffic fatality rate?

Strafford County, with 2.3 per 100,000 people in 2019.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: Invokely, NHTSA FARS traffic fatalities divided by BEA mid-year population (SAINC1 and CAINC1), per 100,000 residents. Retrieved 2026-10-12.

Traffic fatality rate: other rankings

Counties in New Hampshire: more rankings