Counties in Idaho by traffic fatality rate, 2024

Clark County had the highest traffic fatality rate of 44 counties in 2024, at 251.9 per 100,000 people. Lemhi County had the lowest, at 0 per 100,000 people. The median was 14.6 per 100,000 people and the figure for Idaho was 11.9 per 100,000 people. Source: NHTSA and BEA.

Keep it in a collection in your library.
Highest251.9Clark County
Median14.644 counties
Idaho11.9History

Map of counties, 2024

Ada County: 5.4 per 100,000 peopleAdams County: 40 per 100,000 peopleBannock County: 8.8 per 100,000 peopleBear Lake County: 14.8 per 100,000 peopleBenewah County: 9.5 per 100,000 peopleBingham County: 15.7 per 100,000 peopleBlaine County: 4 per 100,000 peopleBoise County: 35 per 100,000 peopleBonner County: 11.1 per 100,000 peopleBonneville County: 17.2 per 100,000 peopleBoundary County: 14.2 per 100,000 peopleButte County: 0 per 100,000 peopleCamas County: 0 per 100,000 peopleCanyon County: 8.6 per 100,000 peopleCaribou County: 0 per 100,000 peopleCassia County: 46.2 per 100,000 peopleClark County: 251.9 per 100,000 peopleClearwater County: 10.9 per 100,000 peopleCuster County: 21.8 per 100,000 peopleElmore County: 10.1 per 100,000 peopleFranklin County: 32 per 100,000 peopleFremont County: 6.9 per 100,000 peopleGem County: 9.2 per 100,000 peopleGooding County: 43.2 per 100,000 peopleIdaho County: 83.7 per 100,000 peopleJefferson County: 2.9 per 100,000 peopleJerome County: 26.9 per 100,000 peopleKootenai County: 6.4 per 100,000 peopleLatah County: 4.7 per 100,000 peopleLemhi County: 0 per 100,000 peopleLewis County: 26.8 per 100,000 peopleLincoln County: 90 per 100,000 peopleMadison County: 7.2 per 100,000 peopleMinidoka County: 8.8 per 100,000 peopleNez Perce County: 16.3 per 100,000 peopleOneida County: 40.2 per 100,000 peopleOwyhee County: 23.5 per 100,000 peoplePayette County: 32.5 per 100,000 peoplePower County: 35.8 per 100,000 peopleShoshone County: 21.3 per 100,000 peopleTeton County: 7.7 per 100,000 peopleTwin Falls County: 14.5 per 100,000 peopleValley County: 31.3 per 100,000 peopleWashington County: 17.3 per 100,000 people
  • Under 6
  • 6 to 9
  • 9 to 15
  • 15 to 23
  • 23 to 36
  • 36 and over
per 100,000 people, 2024. Source: Invokely calculation with data from NHTSA, BEA. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2024

Clark County: 251.9 per 100,000 peopleClark County251.9Lincoln County: 90 per 100,000 peopleLincoln County90Idaho County: 83.7 per 100,000 peopleIdaho County83.7Cassia County: 46.2 per 100,000 peopleCassia County46.2Gooding County: 43.2 per 100,000 peopleGooding County43.2Oneida County: 40.2 per 100,000 peopleOneida County40.2Adams County: 40 per 100,000 peopleAdams County40Power County: 35.8 per 100,000 peoplePower County35.8Boise County: 35 per 100,000 peopleBoise County35Payette County: 32.5 per 100,000 peoplePayette County32.5Franklin County: 32 per 100,000 peopleFranklin County32Valley County: 31.3 per 100,000 peopleValley County31.3Jerome County: 26.9 per 100,000 peopleJerome County26.9Lewis County: 26.8 per 100,000 peopleLewis County26.8Owyhee County: 23.5 per 100,000 peopleOwyhee County23.5Custer County: 21.8 per 100,000 peopleCuster County21.8Shoshone County: 21.3 per 100,000 peopleShoshone County21.3Washington County: 17.3 per 100,000 peopleWashington County17.3Bonneville County: 17.2 per 100,000 peopleBonneville County17.2Nez Perce County: 16.3 per 100,000 peopleNez Perce County16.3Bingham County: 15.7 per 100,000 peopleBingham County15.7Bear Lake County: 14.8 per 100,000 peopleBear Lake County14.8Twin Falls County: 14.5 per 100,000 peopleTwin Falls County14.5Boundary County: 14.2 per 100,000 peopleBoundary County14.2Bonner County: 11.1 per 100,000 peopleBonner County11.1Clearwater County: 10.9 per 100,000 peopleClearwater County10.9Elmore County: 10.1 per 100,000 peopleElmore County10.1Benewah County: 9.5 per 100,000 peopleBenewah County9.5Gem County: 9.2 per 100,000 peopleGem County9.2Minidoka County: 8.8 per 100,000 peopleMinidoka County8.8Bannock County: 8.8 per 100,000 peopleBannock County8.8Canyon County: 8.6 per 100,000 peopleCanyon County8.6Teton County: 7.7 per 100,000 peopleTeton County7.7Madison County: 7.2 per 100,000 peopleMadison County7.2Fremont County: 6.9 per 100,000 peopleFremont County6.9Kootenai County: 6.4 per 100,000 peopleKootenai County6.4Ada County: 5.4 per 100,000 peopleAda County5.4Latah County: 4.7 per 100,000 peopleLatah County4.7Blaine County: 4 per 100,000 peopleBlaine County4Jefferson County: 2.9 per 100,000 peopleJefferson County2.9Butte County: 0 per 100,000 peopleButte County0Camas County: 0 per 100,000 peopleCamas County0Caribou County: 0 per 100,000 peopleCaribou County0Lemhi County: 0 per 100,000 peopleLemhi County0Clark County: 251.9 per 100,000 peopleClark County251.9Lincoln County: 90 per 100,000 peopleLincoln County90Idaho County: 83.7 per 100,000 peopleIdaho County83.7Cassia County: 46.2 per 100,000 peopleCassia County46.2Gooding County: 43.2 per 100,000 peopleGooding County43.2Oneida County: 40.2 per 100,000 peopleOneida County40.2Adams County: 40 per 100,000 peopleAdams County40Power County: 35.8 per 100,000 peoplePower County35.8Boise County: 35 per 100,000 peopleBoise County35Payette County: 32.5 per 100,000 peoplePayette County32.5Franklin County: 32 per 100,000 peopleFranklin County32Valley County: 31.3 per 100,000 peopleValley County31.3Jerome County: 26.9 per 100,000 peopleJerome County26.9Lewis County: 26.8 per 100,000 peopleLewis County26.8Owyhee County: 23.5 per 100,000 peopleOwyhee County23.5Custer County: 21.8 per 100,000 peopleCuster County21.8Shoshone County: 21.3 per 100,000 peopleShoshone County21.3Washington County: 17.3 per 100,000 peopleWashington County17.3Bonneville County: 17.2 per 100,000 peopleBonneville County17.2Nez Perce County: 16.3 per 100,000 peopleNez Perce County16.3Bingham County: 15.7 per 100,000 peopleBingham County15.7Bear Lake County: 14.8 per 100,000 peopleBear Lake County14.8Twin Falls County: 14.5 per 100,000 peopleTwin Falls County14.5Boundary County: 14.2 per 100,000 peopleBoundary County14.2Bonner County: 11.1 per 100,000 peopleBonner County11.1Clearwater County: 10.9 per 100,000 peopleClearwater County10.9Elmore County: 10.1 per 100,000 peopleElmore County10.1Benewah County: 9.5 per 100,000 peopleBenewah County9.5Gem County: 9.2 per 100,000 peopleGem County9.2Minidoka County: 8.8 per 100,000 peopleMinidoka County8.8Bannock County: 8.8 per 100,000 peopleBannock County8.8Canyon County: 8.6 per 100,000 peopleCanyon County8.6Teton County: 7.7 per 100,000 peopleTeton County7.7Madison County: 7.2 per 100,000 peopleMadison County7.2Fremont County: 6.9 per 100,000 peopleFremont County6.9Kootenai County: 6.4 per 100,000 peopleKootenai County6.4Ada County: 5.4 per 100,000 peopleAda County5.4Latah County: 4.7 per 100,000 peopleLatah County4.7Blaine County: 4 per 100,000 peopleBlaine County4Jefferson County: 2.9 per 100,000 peopleJefferson County2.9Butte County: 0 per 100,000 peopleButte County0Camas County: 0 per 100,000 peopleCamas County0Caribou County: 0 per 100,000 peopleCaribou County0Lemhi County: 0 per 100,000 peopleLemhi County0
per 100,000 people. Source: Invokely calculation with data from NHTSA, BEA. Retrieved 2026-10-12.

Full ranking

RankCounties2024
per 100,000 people
Change on 2023
1Clark County Estimated251.9+251.9 pts
2Lincoln County Estimated90+53.3 pts
3Idaho County Estimated83.7+39.1 pts
4Cassia County Estimated46.2+15.2 pts
5Gooding County Estimated43.2+18.4 pts
6Oneida County Estimated40.2+40.2 pts
7Adams County Estimated40+19.6 pts
8Power County Estimated35.8+23.7 pts
9Boise County Estimated35-46.8 pts
10Payette County Estimated32.5-0.4 pts
11Franklin County Estimated32+25.5 pts
12Valley County Estimated31.3+7.6 pts
13Jerome County Estimated26.9-43.5 pts
14Lewis County Estimated26.8+26.8 pts
15Owyhee County Estimated23.5+7.9 pts
16Custer County Estimated21.8-0.3 pts
17Shoshone County Estimated21.3+7.1 pts
18Washington County Estimated17.3-8.7 pts
19Bonneville County Estimated17.2+3.5 pts
20Nez Perce County Estimated16.3+0.1 pts
21Bingham County Estimated15.7-2.1 pts
22Bear Lake County Estimated14.8-29.5 pts
23Twin Falls County Estimated14.5+1.9 pts
24Boundary County Estimated14.2+6.9 pts
25Bonner County Estimated11.1-2.2 pts
26Clearwater County Estimated10.9-32.6 pts
27Elmore County Estimated10.1-26.9 pts
28Benewah County Estimated9.5-19.3 pts
29Gem County Estimated9.2-9.6 pts
30Minidoka County Estimated8.8-13.4 pts
31Bannock County Estimated8.8-0 pts
32Canyon County Estimated8.6-3 pts
33Teton County Estimated7.7-31.8 pts
34Madison County Estimated7.2+3.6 pts
35Fremont County Estimated6.9-21.1 pts
36Kootenai County Estimated6.4-3.9 pts
37Ada County Estimated5.4-0.5 pts
38Latah County Estimated4.7-0.1 pts
39Blaine County Estimated4-15.9 pts
40Jefferson County Estimated2.9-20.5 pts
41Butte County Estimated0-72.8 pts
41Camas County Estimated00 pts
41Caribou County Estimated0-27.7 pts
41Lemhi County Estimated0-35.5 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 Idaho by traffic fatality rate, 2024) [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, 2024. 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, 2024. 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, 2024 [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_2024,
  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, 2024}},
  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. 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, 2024
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
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.
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 251.9 per 100,000 people in 2024, according to NHTSA and BEA.

Which county has the lowest traffic fatality rate?

Lemhi County, with 0 per 100,000 people in 2024.

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