Data / Rankings / Traffic fatality rate / Counties in Idaho

Counties in Idaho by traffic fatality rate

Clark County had the highest traffic fatality rate of 44 counties in 2019, at 126.1 per 100,000 people. Power County had the lowest, at 0 per 100,000 people. The median was 17.9 per 100,000 people and the figure for Idaho was 12.4 per 100,000 people. Source: NHTSA and BEA.

Keep it in a collection in your library.
Highest126.1Clark County
Lowest0Power County
Median17.944 counties
Idaho12.4History

Map of counties, 2019

Ada County: 6 per 100,000 peopleAdams County: 70.9 per 100,000 peopleBannock County: 10.4 per 100,000 peopleBear Lake County: 0 per 100,000 peopleBenewah County: 21.3 per 100,000 peopleBingham County: 16.8 per 100,000 peopleBlaine County: 54.5 per 100,000 peopleBoise County: 80 per 100,000 peopleBonner County: 19.5 per 100,000 peopleBonneville County: 8.2 per 100,000 peopleBoundary County: 8.5 per 100,000 peopleButte County: 38.9 per 100,000 peopleCamas County: 0 per 100,000 peopleCanyon County: 9.3 per 100,000 peopleCaribou County: 14.2 per 100,000 peopleCassia County: 20.5 per 100,000 peopleClark County: 126.1 per 100,000 peopleClearwater County: 11.5 per 100,000 peopleCuster County: 70 per 100,000 peopleElmore County: 21.1 per 100,000 peopleFranklin County: 21.5 per 100,000 peopleFremont County: 37.7 per 100,000 peopleGem County: 10.7 per 100,000 peopleGooding County: 32.6 per 100,000 peopleIdaho County: 18.3 per 100,000 peopleJefferson County: 6.6 per 100,000 peopleJerome County: 45.5 per 100,000 peopleKootenai County: 9 per 100,000 peopleLatah County: 5.1 per 100,000 peopleLemhi County: 25.1 per 100,000 peopleLewis County: 56.2 per 100,000 peopleLincoln County: 39 per 100,000 peopleMadison County: 3.9 per 100,000 peopleMinidoka County: 14 per 100,000 peopleNez Perce County: 14.3 per 100,000 peopleOneida County: 22 per 100,000 peopleOwyhee County: 17.1 per 100,000 peoplePayette County: 12.1 per 100,000 peoplePower County: 0 per 100,000 peopleShoshone County: 38 per 100,000 peopleTeton County: 17.5 per 100,000 peopleTwin Falls County: 7.9 per 100,000 peopleValley County: 34.8 per 100,000 peopleWashington County: 58.1 per 100,000 people
  • Under 8
  • 8 to 12
  • 12 to 18
  • 18 to 24
  • 24 to 44
  • 44 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

Clark County: 126.1 per 100,000 peopleClark County126.1Boise County: 80 per 100,000 peopleBoise County80Adams County: 70.9 per 100,000 peopleAdams County70.9Custer County: 70 per 100,000 peopleCuster County70Washington County: 58.1 per 100,000 peopleWashington County58.1Lewis County: 56.2 per 100,000 peopleLewis County56.2Blaine County: 54.5 per 100,000 peopleBlaine County54.5Jerome County: 45.5 per 100,000 peopleJerome County45.5Lincoln County: 39 per 100,000 peopleLincoln County39Butte County: 38.9 per 100,000 peopleButte County38.9Shoshone County: 38 per 100,000 peopleShoshone County38Fremont County: 37.7 per 100,000 peopleFremont County37.7Valley County: 34.8 per 100,000 peopleValley County34.8Gooding County: 32.6 per 100,000 peopleGooding County32.6Lemhi County: 25.1 per 100,000 peopleLemhi County25.1Oneida County: 22 per 100,000 peopleOneida County22Franklin County: 21.5 per 100,000 peopleFranklin County21.5Benewah County: 21.3 per 100,000 peopleBenewah County21.3Elmore County: 21.1 per 100,000 peopleElmore County21.1Cassia County: 20.5 per 100,000 peopleCassia County20.5Bonner County: 19.5 per 100,000 peopleBonner County19.5Idaho County: 18.3 per 100,000 peopleIdaho County18.3Teton County: 17.5 per 100,000 peopleTeton County17.5Owyhee County: 17.1 per 100,000 peopleOwyhee County17.1Bingham County: 16.8 per 100,000 peopleBingham County16.8Nez Perce County: 14.3 per 100,000 peopleNez Perce County14.3Caribou County: 14.2 per 100,000 peopleCaribou County14.2Minidoka County: 14 per 100,000 peopleMinidoka County14Payette County: 12.1 per 100,000 peoplePayette County12.1Clearwater County: 11.5 per 100,000 peopleClearwater County11.5Gem County: 10.7 per 100,000 peopleGem County10.7Bannock County: 10.4 per 100,000 peopleBannock County10.4Canyon County: 9.3 per 100,000 peopleCanyon County9.3Kootenai County: 9 per 100,000 peopleKootenai County9Boundary County: 8.5 per 100,000 peopleBoundary County8.5Bonneville County: 8.2 per 100,000 peopleBonneville County8.2Twin Falls County: 7.9 per 100,000 peopleTwin Falls County7.9Jefferson County: 6.6 per 100,000 peopleJefferson County6.6Ada County: 6 per 100,000 peopleAda County6Latah County: 5.1 per 100,000 peopleLatah County5.1Madison County: 3.9 per 100,000 peopleMadison County3.9Bear Lake County: 0 per 100,000 peopleBear Lake County0Camas County: 0 per 100,000 peopleCamas County0Power County: 0 per 100,000 peoplePower County0Clark County: 126.1 per 100,000 peopleClark County126.1Boise County: 80 per 100,000 peopleBoise County80Adams County: 70.9 per 100,000 peopleAdams County70.9Custer County: 70 per 100,000 peopleCuster County70Washington County: 58.1 per 100,000 peopleWashington County58.1Lewis County: 56.2 per 100,000 peopleLewis County56.2Blaine County: 54.5 per 100,000 peopleBlaine County54.5Jerome County: 45.5 per 100,000 peopleJerome County45.5Lincoln County: 39 per 100,000 peopleLincoln County39Butte County: 38.9 per 100,000 peopleButte County38.9Shoshone County: 38 per 100,000 peopleShoshone County38Fremont County: 37.7 per 100,000 peopleFremont County37.7Valley County: 34.8 per 100,000 peopleValley County34.8Gooding County: 32.6 per 100,000 peopleGooding County32.6Lemhi County: 25.1 per 100,000 peopleLemhi County25.1Oneida County: 22 per 100,000 peopleOneida County22Franklin County: 21.5 per 100,000 peopleFranklin County21.5Benewah County: 21.3 per 100,000 peopleBenewah County21.3Elmore County: 21.1 per 100,000 peopleElmore County21.1Cassia County: 20.5 per 100,000 peopleCassia County20.5Bonner County: 19.5 per 100,000 peopleBonner County19.5Idaho County: 18.3 per 100,000 peopleIdaho County18.3Teton County: 17.5 per 100,000 peopleTeton County17.5Owyhee County: 17.1 per 100,000 peopleOwyhee County17.1Bingham County: 16.8 per 100,000 peopleBingham County16.8Nez Perce County: 14.3 per 100,000 peopleNez Perce County14.3Caribou County: 14.2 per 100,000 peopleCaribou County14.2Minidoka County: 14 per 100,000 peopleMinidoka County14Payette County: 12.1 per 100,000 peoplePayette County12.1Clearwater County: 11.5 per 100,000 peopleClearwater County11.5Gem County: 10.7 per 100,000 peopleGem County10.7Bannock County: 10.4 per 100,000 peopleBannock County10.4Canyon County: 9.3 per 100,000 peopleCanyon County9.3Kootenai County: 9 per 100,000 peopleKootenai County9Boundary County: 8.5 per 100,000 peopleBoundary County8.5Bonneville County: 8.2 per 100,000 peopleBonneville County8.2Twin Falls County: 7.9 per 100,000 peopleTwin Falls County7.9Jefferson County: 6.6 per 100,000 peopleJefferson County6.6Ada County: 6 per 100,000 peopleAda County6Latah County: 5.1 per 100,000 peopleLatah County5.1Madison County: 3.9 per 100,000 peopleMadison County3.9Bear Lake County: 0 per 100,000 peopleBear Lake County0Camas County: 0 per 100,000 peopleCamas County0Power County: 0 per 100,000 peoplePower County0
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
1Clark County126.1+1.9 pts
2Boise County80-1.9 pts
3Adams County70.9-0.8 pts
4Custer County70+70 pts
5Washington County58.1+38.6 pts
6Lewis County56.2+0.3 pts
7Blaine County54.5+46 pts
8Jerome County45.5+7.7 pts
9Lincoln County39-57.5 pts
10Butte County38.9+38.9 pts
11Shoshone County38+30.4 pts
12Fremont County37.7-7.4 pts
13Valley County34.8+16.8 pts
14Gooding County32.6+26 pts
15Lemhi County25.1-0.3 pts
16Oneida County22-89.8 pts
17Franklin County21.5+7 pts
18Benewah County21.3-32.4 pts
19Elmore County21.1-3.7 pts
20Cassia County20.5+16.3 pts
21Bonner County19.5+1.7 pts
22Idaho County18.3-37 pts
23Teton County17.5-0.6 pts
24Owyhee County17.1+8.4 pts
25Bingham County16.8+1.8 pts
26Nez Perce County14.3-7.3 pts
27Caribou County14.2-43.5 pts
28Minidoka County14-14.4 pts
29Payette County12.1-4.4 pts
30Clearwater County11.5+11.5 pts
31Gem County10.7-0.4 pts
32Bannock County10.4+1.1 pts
33Canyon County9.3-3.4 pts
34Kootenai County9-2.1 pts
35Boundary County8.5-0.2 pts
36Bonneville County8.2-1 pts
37Twin Falls County7.9-3.5 pts
38Jefferson County6.6-6.8 pts
39Ada County6-0.6 pts
40Latah County5.1-5.2 pts
41Madison County3.9+1.8 pts
42Bear Lake County0-16.1 pts
42Camas County00 pts
42Power County0-38.2 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 Idaho 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 Idaho 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 Idaho 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 Idaho 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_idaho_by_2019,
  author = {{Invokely}},
  title = {{NHTSA FARS traffic fatalities divided by BEA mid-year population (SAINC1 and CAINC1), per 100,000 residents: Counties in Idaho 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/idaho-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 Idaho 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/idaho-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/idaho-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 Idaho by traffic fatality rate using official data, and cite the source.
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Questions

Which county has the highest traffic fatality rate?

Clark County, with 126.1 per 100,000 people in 2019, according to NHTSA and BEA.

Which county has the lowest traffic fatality rate?

Power County, with 0 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 Idaho: more rankings