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 2016, at 358.9 per 100,000 people. Valley County had the lowest, at 0 per 100,000 people. The median was 18.1 per 100,000 people and the figure for Idaho was 14.9 per 100,000 people. Source: NHTSA and BEA.

Keep it in a collection in your library.
Highest358.9Clark County
Lowest0Valley County
Median18.144 counties
Idaho14.9History

Map of counties, 2016

Ada County: 5.4 per 100,000 peopleAdams County: 25.5 per 100,000 peopleBannock County: 11.9 per 100,000 peopleBear Lake County: 32.9 per 100,000 peopleBenewah County: 11 per 100,000 peopleBingham County: 21.8 per 100,000 peopleBlaine County: 4.4 per 100,000 peopleBoise County: 44 per 100,000 peopleBonner County: 16.4 per 100,000 peopleBonneville County: 10.6 per 100,000 peopleBoundary County: 8.8 per 100,000 peopleButte County: 39.4 per 100,000 peopleCamas County: 95.5 per 100,000 peopleCanyon County: 13.4 per 100,000 peopleCaribou County: 14.7 per 100,000 peopleCassia County: 54.8 per 100,000 peopleClark County: 358.9 per 100,000 peopleClearwater County: 58.2 per 100,000 peopleCuster County: 97.7 per 100,000 peopleElmore County: 33.4 per 100,000 peopleFranklin County: 37.4 per 100,000 peopleFremont County: 7.7 per 100,000 peopleGem County: 5.8 per 100,000 peopleGooding County: 26.3 per 100,000 peopleIdaho County: 86.9 per 100,000 peopleJefferson County: 10.7 per 100,000 peopleJerome County: 68.9 per 100,000 peopleKootenai County: 9.7 per 100,000 peopleLatah County: 7.8 per 100,000 peopleLemhi County: 13.1 per 100,000 peopleLewis County: 27.3 per 100,000 peopleLincoln County: 58 per 100,000 peopleMadison County: 4.3 per 100,000 peopleMinidoka County: 19.1 per 100,000 peopleNez Perce County: 12.2 per 100,000 peopleOneida County: 0 per 100,000 peopleOwyhee County: 8.9 per 100,000 peoplePayette County: 17.1 per 100,000 peoplePower County: 25.6 per 100,000 peopleShoshone County: 79.3 per 100,000 peopleTeton County: 9.3 per 100,000 peopleTwin Falls County: 21.2 per 100,000 peopleValley County: 0 per 100,000 peopleWashington County: 19.7 per 100,000 people
  • Under 8
  • 8 to 11
  • 11 to 18
  • 18 to 27
  • 27 to 57
  • 57 and over
per 100,000 people, 2016. Source: Invokely calculation with data from NHTSA, BEA. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2016

Clark County: 358.9 per 100,000 peopleClark County358.9Custer County: 97.7 per 100,000 peopleCuster County97.7Camas County: 95.5 per 100,000 peopleCamas County95.5Idaho County: 86.9 per 100,000 peopleIdaho County86.9Shoshone County: 79.3 per 100,000 peopleShoshone County79.3Jerome County: 68.9 per 100,000 peopleJerome County68.9Clearwater County: 58.2 per 100,000 peopleClearwater County58.2Lincoln County: 58 per 100,000 peopleLincoln County58Cassia County: 54.8 per 100,000 peopleCassia County54.8Boise County: 44 per 100,000 peopleBoise County44Butte County: 39.4 per 100,000 peopleButte County39.4Franklin County: 37.4 per 100,000 peopleFranklin County37.4Elmore County: 33.4 per 100,000 peopleElmore County33.4Bear Lake County: 32.9 per 100,000 peopleBear Lake County32.9Lewis County: 27.3 per 100,000 peopleLewis County27.3Gooding County: 26.3 per 100,000 peopleGooding County26.3Power County: 25.6 per 100,000 peoplePower County25.6Adams County: 25.5 per 100,000 peopleAdams County25.5Bingham County: 21.8 per 100,000 peopleBingham County21.8Twin Falls County: 21.2 per 100,000 peopleTwin Falls County21.2Washington County: 19.7 per 100,000 peopleWashington County19.7Minidoka County: 19.1 per 100,000 peopleMinidoka County19.1Payette County: 17.1 per 100,000 peoplePayette County17.1Bonner County: 16.4 per 100,000 peopleBonner County16.4Caribou County: 14.7 per 100,000 peopleCaribou County14.7Canyon County: 13.4 per 100,000 peopleCanyon County13.4Lemhi County: 13.1 per 100,000 peopleLemhi County13.1Nez Perce County: 12.2 per 100,000 peopleNez Perce County12.2Bannock County: 11.9 per 100,000 peopleBannock County11.9Benewah County: 11 per 100,000 peopleBenewah County11Jefferson County: 10.7 per 100,000 peopleJefferson County10.7Bonneville County: 10.6 per 100,000 peopleBonneville County10.6Kootenai County: 9.7 per 100,000 peopleKootenai County9.7Teton County: 9.3 per 100,000 peopleTeton County9.3Owyhee County: 8.9 per 100,000 peopleOwyhee County8.9Boundary County: 8.8 per 100,000 peopleBoundary County8.8Latah County: 7.8 per 100,000 peopleLatah County7.8Fremont County: 7.7 per 100,000 peopleFremont County7.7Gem County: 5.8 per 100,000 peopleGem County5.8Ada County: 5.4 per 100,000 peopleAda County5.4Blaine County: 4.4 per 100,000 peopleBlaine County4.4Madison County: 4.3 per 100,000 peopleMadison County4.3Oneida County: 0 per 100,000 peopleOneida County0Valley County: 0 per 100,000 peopleValley County0Clark County: 358.9 per 100,000 peopleClark County358.9Custer County: 97.7 per 100,000 peopleCuster County97.7Camas County: 95.5 per 100,000 peopleCamas County95.5Idaho County: 86.9 per 100,000 peopleIdaho County86.9Shoshone County: 79.3 per 100,000 peopleShoshone County79.3Jerome County: 68.9 per 100,000 peopleJerome County68.9Clearwater County: 58.2 per 100,000 peopleClearwater County58.2Lincoln County: 58 per 100,000 peopleLincoln County58Cassia County: 54.8 per 100,000 peopleCassia County54.8Boise County: 44 per 100,000 peopleBoise County44Butte County: 39.4 per 100,000 peopleButte County39.4Franklin County: 37.4 per 100,000 peopleFranklin County37.4Elmore County: 33.4 per 100,000 peopleElmore County33.4Bear Lake County: 32.9 per 100,000 peopleBear Lake County32.9Lewis County: 27.3 per 100,000 peopleLewis County27.3Gooding County: 26.3 per 100,000 peopleGooding County26.3Power County: 25.6 per 100,000 peoplePower County25.6Adams County: 25.5 per 100,000 peopleAdams County25.5Bingham County: 21.8 per 100,000 peopleBingham County21.8Twin Falls County: 21.2 per 100,000 peopleTwin Falls County21.2Washington County: 19.7 per 100,000 peopleWashington County19.7Minidoka County: 19.1 per 100,000 peopleMinidoka County19.1Payette County: 17.1 per 100,000 peoplePayette County17.1Bonner County: 16.4 per 100,000 peopleBonner County16.4Caribou County: 14.7 per 100,000 peopleCaribou County14.7Canyon County: 13.4 per 100,000 peopleCanyon County13.4Lemhi County: 13.1 per 100,000 peopleLemhi County13.1Nez Perce County: 12.2 per 100,000 peopleNez Perce County12.2Bannock County: 11.9 per 100,000 peopleBannock County11.9Benewah County: 11 per 100,000 peopleBenewah County11Jefferson County: 10.7 per 100,000 peopleJefferson County10.7Bonneville County: 10.6 per 100,000 peopleBonneville County10.6Kootenai County: 9.7 per 100,000 peopleKootenai County9.7Teton County: 9.3 per 100,000 peopleTeton County9.3Owyhee County: 8.9 per 100,000 peopleOwyhee County8.9Boundary County: 8.8 per 100,000 peopleBoundary County8.8Latah County: 7.8 per 100,000 peopleLatah County7.8Fremont County: 7.7 per 100,000 peopleFremont County7.7Gem County: 5.8 per 100,000 peopleGem County5.8Ada County: 5.4 per 100,000 peopleAda County5.4Blaine County: 4.4 per 100,000 peopleBlaine County4.4Madison County: 4.3 per 100,000 peopleMadison County4.3Oneida County: 0 per 100,000 peopleOneida County0Valley County: 0 per 100,000 peopleValley County0
per 100,000 people. Source: Invokely calculation with data from NHTSA, BEA. Retrieved 2026-10-12.

Full ranking

RankCounties2016
per 100,000 people		Change on 2015
1Clark County358.9+242.4 pts
2Custer County97.7-25.3 pts
3Camas County95.5-0.5 pts
4Idaho County86.9+62.2 pts
5Shoshone County79.3+55.5 pts
6Jerome County68.9+38.2 pts
7Clearwater County58.2+22.9 pts
8Lincoln County58-18.9 pts
9Cassia County54.8+25.3 pts
10Boise County44-89.7 pts
11Butte County39.4-0 pts
12Franklin County37.4+22 pts
13Elmore County33.4-4.3 pts
14Bear Lake County32.9+32.9 pts
15Lewis County27.3-0.2 pts
16Gooding County26.30 pts
17Power County25.6-12.8 pts
18Adams County25.5-77.8 pts
19Bingham County21.8-15.5 pts
20Twin Falls County21.2+8 pts
21Washington County19.7+19.7 pts
22Minidoka County19.1-0.2 pts
23Payette County17.1-0.1 pts
24Bonner County16.4-19.4 pts
25Caribou County14.7-30.2 pts
26Canyon County13.4+1.2 pts
27Lemhi County13.1-12.9 pts
28Nez Perce County12.2+2.4 pts
29Bannock County11.9+1.2 pts
30Benewah County11-11.1 pts
31Jefferson County10.7-3.9 pts
32Bonneville County10.6+7.9 pts
33Kootenai County9.7+2.4 pts
34Teton County9.3+9.3 pts
35Owyhee County8.9-9 pts
36Boundary County8.8+8.8 pts
37Latah County7.8+5.2 pts
38Fremont County7.7-7.8 pts
39Gem County5.8-6 pts
40Ada County5.4+0.1 pts
41Blaine County4.4+4.4 pts
42Madison County4.3-2.4 pts
43Oneida County00 pts
43Valley County00 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, 2016) [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, 2016. 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, 2016. 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, 2016 [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_2016,
  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, 2016}},
  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=2016. 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, 2016
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=2016
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=2016.
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 358.9 per 100,000 people in 2016, according to NHTSA and BEA.

Which county has the lowest traffic fatality rate?

Valley County, with 0 per 100,000 people in 2016.

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