Counties in New Hampshire by traffic fatality rate

Coos County had the highest traffic fatality rate of 10 counties in 2015, at 21.6 per 100,000 people. Cheshire County had the lowest, at 2.6 per 100,000 people. The median was 9.6 per 100,000 people and the figure for New Hampshire was 8.5 per 100,000 people. Source: NHTSA and BEA.

Keep it in a collection in your library.
Highest21.6Coos County
Median9.610 counties
New Hampshire8.5History

Map of counties, 2015

Belknap County: 9.8 per 100,000 peopleCarroll County: 12.5 per 100,000 peopleCheshire County: 2.6 per 100,000 peopleCoos County: 21.6 per 100,000 peopleGrafton County: 10 per 100,000 peopleHillsborough County: 5.8 per 100,000 peopleMerrimack County: 10.7 per 100,000 peopleRockingham County: 9.5 per 100,000 peopleStrafford County: 9.5 per 100,000 peopleSullivan County: 7 per 100,000 people
  • Under 6.7
  • 6.7 to 9.5
  • 9.5 to 9.9
  • 9.9 to 11
  • 11 and over
per 100,000 people, 2015. Source: Invokely calculation with data from NHTSA, BEA. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2015

Coos County: 21.6 per 100,000 peopleCoos County21.6Carroll County: 12.5 per 100,000 peopleCarroll County12.5Merrimack County: 10.7 per 100,000 peopleMerrimack County10.7Grafton County: 10 per 100,000 peopleGrafton County10Belknap County: 9.8 per 100,000 peopleBelknap County9.8Rockingham County: 9.5 per 100,000 peopleRockingham County9.5Strafford County: 9.5 per 100,000 peopleStrafford County9.5Sullivan County: 7 per 100,000 peopleSullivan County7Hillsborough County: 5.8 per 100,000 peopleHillsborough County5.8Cheshire County: 2.6 per 100,000 peopleCheshire County2.6Coos County: 21.6 per 100,000 peopleCoos County21.6Carroll County: 12.5 per 100,000 peopleCarroll County12.5Merrimack County: 10.7 per 100,000 peopleMerrimack County10.7Grafton County: 10 per 100,000 peopleGrafton County10Belknap County: 9.8 per 100,000 peopleBelknap County9.8Rockingham County: 9.5 per 100,000 peopleRockingham County9.5Strafford County: 9.5 per 100,000 peopleStrafford County9.5Sullivan County: 7 per 100,000 peopleSullivan County7Hillsborough County: 5.8 per 100,000 peopleHillsborough County5.8Cheshire County: 2.6 per 100,000 peopleCheshire County2.6
per 100,000 people. Source: Invokely calculation with data from NHTSA, BEA. Retrieved 2026-10-12.

Full ranking

RankCounties2015
per 100,000 people
Change on 2014
1Coos County21.6+12.5 pts
2Carroll County12.5-0 pts
3Merrimack County10.7+2 pts
4Grafton County10+5.6 pts
5Belknap County9.8+3.2 pts
6Rockingham County9.5+3.6 pts
7Strafford County9.5+2.3 pts
8Sullivan County7-2.3 pts
9Hillsborough County5.8-0.8 pts
10Cheshire County2.6-6.5 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, 2015) [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, 2015. 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, 2015. 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, 2015 [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_2015,
  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, 2015}},
  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=2015. 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, 2015
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=2015
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=2015.
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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Questions

Which county has the highest traffic fatality rate?

Coos County, with 21.6 per 100,000 people in 2015, according to NHTSA and BEA.

Which county has the lowest traffic fatality rate?

Cheshire County, with 2.6 per 100,000 people in 2015.

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