Counties in New Hampshire by traffic fatality rate

Name: Counties in New Hampshire by traffic fatality rate, 2021
License: https://invokely.ai/docs/methodology

Carroll County had the highest traffic fatality rate of 10 counties in 2021, at 17.4 per 100,000 people. Belknap County had the lowest, at 4.6 per 100,000 people. The median was 8.2 per 100,000 people and the figure for New Hampshire was 8.5 per 100,000 people. Source: NHTSA and BEA.

Highest17.4Carroll County

Lowest4.6Belknap County

Median8.210 counties

New Hampshire8.5History

Map of counties, 2021

Under 7.1
7.1 to 7.3
7.3 to 9.3
9.3 to 12
12 and over

per 100,000 people, 2021. Source: Invokely calculation with data from NHTSA, BEA. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2021

per 100,000 people. Source: Invokely calculation with data from NHTSA, BEA. Retrieved 2026-10-12.

Full ranking

Rank	Counties	2021 per 100,000 people	Change on 2020
1	Carroll County	17.4	+3.5 pts
2	Grafton County	13.3	+10 pts
3	Strafford County	12.2	+2.2 pts
4	Coos County	9.6	-3.3 pts
5	Cheshire County	9.1	+2.6 pts
6	Hillsborough County	7.3	+2.3 pts
7	Rockingham County	7.2	+2.1 pts
8	Merrimack County	7.1	-5.9 pts
9	Sullivan County	6.9	-2.4 pts
10	Belknap County	4.6	-12.6 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, 2021) [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, 2021. 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, 2021. 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, 2021 [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_2021,
  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, 2021}},
  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=2021. 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, 2021
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=2021
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=2021.
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  -

Embed this chart

Paste this code into a web page or a blog post. The chart shows the latest figures as they are published, with the source and a link back to this page.

Embed code

<iframe src="https://invokely.ai/embed/rankings/traffic-fatality-rate/new-hampshire-counties?period=2021" width="760" height="500" title="Counties in New Hampshire by traffic fatality rate, 2021, chart from Invokely" loading="lazy" style="border:0;width:100%;max-width:760px" referrerpolicy="strict-origin-when-cross-origin"></iframe>

Sites that read oEmbed links, such as WordPress, can show the chart when you paste the link to this page.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

Rank Counties in New Hampshire by traffic fatality rate using official data, and cite the source.

rank_places {"indicator":"traffic_fatality_rate_per_100k","level":"province","within":"New Hampshire","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=traffic_fatality_rate_per_100k&level=province&within=New%20Hampshire&limit=10

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

Which county has the highest traffic fatality rate?

Carroll County, with 17.4 per 100,000 people in 2021, according to NHTSA and BEA.

Which county has the lowest traffic fatality rate?

Belknap County, with 4.6 per 100,000 people in 2021.

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.