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Fatal car crashes in Idaho, county by county
From 2020 through 2024, 1,215 people died in 1,089 crashes on Idaho roads. That is 12.1 deaths a year for every 100,000 residents, about the same as the US rate of 12.1, and the 25th highest rate of the 50 states and DC.
Ada County had the most deaths (122). The road stretch with the most fatal crashes was I-84 in Elmore County (21). In 2024, 238 people were killed, 11% more than in 2020.
Source: NHTSA Fatality Analysis Reporting System (FARS), 2020-2024 · checked October 2, 2026
people killed in crashes, 2020-2024
deaths a year per 100,000 residents, 25th highest of 51 (US 12.1)
pedestrians killed, 8% of deaths (US 18%)
of fatal crashes were speeding-related (US 28%)
Death rate by county
Deaths a year per 100,000 residents, 2020-2024. Rural counties often rank highest: fewer people, faster roads and longer waits for an ambulance.
The most dangerous roads in Idaho
Fatal crashes by road within each county, 2020-2024. A long interstate shows up once per county it crosses.
| # | Road | Where | Fatal crashes | Deaths |
|---|---|---|---|---|
| 1 | I-84 | Elmore County, ID | 21 | 23 |
| 2 | I-84 Ic 2 Wb Off Ramp | Ada County, ID | 20 | 20 |
| 3 | US-26 Yellowstone Hwy | Bonneville County, ID | 17 | 19 |
| 4 | I-15 | Bannock County, ID | 14 | 17 |
| 5 | US-20 | Canyon County, ID | 14 | 15 |
| 6 | US-20 | Fremont County, ID | 13 | 16 |
| 7 | US-12 | Idaho County, ID | 13 | 14 |
| 8 | I-90 Ic 5 Wb On Ramp | Kootenai County, ID | 13 | 13 |
| 9 | US-95 Ic 446 Sb Off Ramp | Kootenai County, ID | 12 | 14 |
| 10 | I-84 | Jerome County, ID | 12 | 12 |
| 11 | US-95 | Idaho County, ID | 11 | 16 |
| 12 | US-95 | Nez Perce County, ID | 11 | 13 |
| 13 | US-93 | Twin Falls County, ID | 11 | 13 |
| 14 | SR-55 | Boise County, ID | 11 | 12 |
| 15 | SR-55 Karcher Rd | Canyon County, ID | 11 | 12 |
Deaths by year
Every Idaho county
27 counties with 10 or more fatal crashes in five years, by deaths. 17 more had fewer than 10 and are listed after the table.
| County | Deaths 2020-24 | Per 100K a year | Pedestrians | Population |
|---|---|---|---|---|
| Ada County | 122 | 4.6 | 26 | 535,799 |
| Canyon County | 122 | 9.1 | 17 | 266,892 |
| Bonneville County | 85 | 12.7 | 7 | 133,644 |
| Kootenai County | 76 | 8.1 | 4 | 188,323 |
| Twin Falls County | 57 | 11.8 | 7 | 96,509 |
| Bannock County | 50 | 11.0 | 6 | 91,010 |
| Bingham County | 49 | 19.3 | 1 | 50,889 |
| Jerome County | 47 | 36.1 | 3 | 26,056 |
| Elmore County | 46 | 30.9 | 2 | 29,729 |
| Idaho County | 44 | 49.1 | 1 | 17,912 |
| Bonner County | 42 | 15.6 | 2 | 53,955 |
| Nez Perce County | 42 | 19.6 | 4 | 42,847 |
| Cassia County | 40 | 30.8 | 1 | 25,976 |
| Boise County | 32 | 74.6 | 1 | 8,581 |
| Payette County | 31 | 22.4 | 1 | 27,662 |
| Gooding County | 26 | 32.1 | 1 | 16,189 |
| Fremont County | 21 | 29.2 | 0 | 14,399 |
| Gem County | 19 | 17.4 | 0 | 21,857 |
| Blaine County | 18 | 14.3 | 2 | 25,261 |
| Jefferson County | 18 | 10.3 | 1 | 34,854 |
| Owyhee County | 18 | 28.2 | 0 | 12,748 |
| Valley County | 18 | 28.2 | 1 | 12,777 |
| Lincoln County | 15 | 54.0 | 0 | 5,556 |
| Minidoka County | 15 | 13.2 | 2 | 22,691 |
| Madison County | 14 | 5.0 | 2 | 55,549 |
| Lemhi County | 13 | 31.0 | 0 | 8,397 |
| Latah County | 12 | 5.7 | 0 | 42,180 |
Fewer than 10 fatal crashes, 2020-2024: Adams County (7 deaths), Bear Lake County (6 deaths), Benewah County (8 deaths), Boundary County (10 deaths), Butte County (9 deaths), Camas County (2 deaths), Caribou County (6 deaths), Clark County (5 deaths), Clearwater County (8 deaths), Custer County (7 deaths), Franklin County (8 deaths), Lewis County (4 deaths), Oneida County (5 deaths), Power County (8 deaths), Shoshone County (10 deaths), Teton County (11 deaths), Washington County (9 deaths).
What was involved
| Factor | Idaho | Share | US |
|---|---|---|---|
| Speeding was a factor a driver coded by police as speeding, racing or too fast for conditions | 255 | 23% | 28% |
| A driver had been drinking police reported alcohol involvement for at least one driver | 349 | 32% | 26% |
| A large truck was involved a truck over 10,000 lbs | 206 | 19% | 13% |
| Hit-and-run a driver left the scene | 20 | 2% | 7% |
| Pedestrians killed share of all deaths | 96 | 8% | 18% |
| Motorcyclists killed share of all deaths | 172 | 14% | 15% |
| Bicyclists killed share of all deaths | 20 | 2% | 3% |
| Teens (15-19) killed share of all deaths | 113 | 9% | 7% |
After a crash in Idaho
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Get the crash report
Statewide copies come from Idaho Transportation Department (ITD), Office of Highway Safety, cost $7.00 per report plus an Idaho.gov transaction fee and are usually ready "It will take a few weeks for a new report to become available online. It may take much longer depending on the law enforcement agency involved.".
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Know your deadline
Idaho gives you two years to file a personal injury lawsuit (Idaho Code § 5-219(4)). If a city, county or state vehicle was involved: Claims against the state (or a state employee) must be filed with the Secretary of State within 180 days from the date the claim arose or reasonably should have been discovered, whichever is later.
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Who pays
Idaho is an at-fault state: the driver who caused the crash, through their liability insurance, pays for the injuries and damage.
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If you were partly at fault
If you were partly at fault, your damages are reduced by your percentage of fault, but you recover nothing unless your negligence was less than the other party's, so a 50% share bars recovery.
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The other driver’s minimum coverage
The legal minimum liability coverage in Idaho is $25,000 per injured person, $50,000 per crash and $15,000 for property (25/50/15).
Check your deadline and a rough claim range
A filing date and a rough value range for Idaho. Both take under a minute.