Fatal crashes in Boise County, Idaho
In 2024, 3 people died in 3 fatal crashes in Boise County, Idaho, down from 7 in 2023. From 2015 to 2024 the county recorded 58 fatal crashes and 60 deaths, the 14th most of 44 counties in Idaho.
Deaths in Boise County by year
| Year | Fatal crashes | Deaths |
|---|---|---|
| 2024 | 3 | 3 |
| 2023 | 7 | 7 |
| 2022 | 5 | 5 |
| 2021 | 9 | 9 |
| 2020 | 7 | 8 |
| 2019 | 6 | 6 |
| 2018 | 6 | 6 |
| 2017 | 4 | 4 |
| 2016 | 3 | 3 |
| 2015 | 8 | 9 |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
The deadliest roads in Boise County
State Highway 55 had the most fatal crashes of any numbered road in Boise County from 2015 to 2024: 19, with 20 deaths. The 2 roads listed held 59% of all fatal crashes in Boise County from 2015 to 2024; 2 state highways. 59% of the county's fatal crashes were on an interstate, US or state route; the other 41% were on county roads and city streets. Routes are listed from 5 fatal crashes.
| Road | Fatal crashes | Deaths | 2022 to 2024 | ||
|---|---|---|---|---|---|
| 1 | State Highway 55 | 19 | 20 | 4 | |
| 2 | State Highway 21 | 15 | 15 | 5 | no page |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
When fatal crashes happen in Boise County
56 fatal crashes in Boise County, Idaho from 2015 to 2024 have a known time, too few for any one weekday and time of day to stand out. The worst hour is 5 pm to 6 pm; the worst month is August.
| Midnight to 4 | 4 to 8 am | 8 to noon | Noon to 4 | 4 to 8 pm | 8 to midnight | |
|---|---|---|---|---|---|---|
| Sun | 1.8 percent, 1 fatal crash | 1.8 percent, 1 fatal crash | 5.4 percent, 3 fatal crashes | 5.4 percent, 3 fatal crashes | 5.4 percent, 3 fatal crashes | 0.0 percent, 0 fatal crashes |
| Mon | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 1.8 percent, 1 fatal crash | 1.8 percent, 1 fatal crash | 3.6 percent, 2 fatal crashes | 0.0 percent, 0 fatal crashes |
| Tue | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 1.8 percent, 1 fatal crash | 5.4 percent, 3 fatal crashes | 1.8 percent, 1 fatal crash | 1.8 percent, 1 fatal crash |
| Wed | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 3.6 percent, 2 fatal crashes | 8.9 percent, 5 fatal crashes | 8.9 percent, 5 fatal crashes | 0.0 percent, 0 fatal crashes |
| Thu | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 3.6 percent, 2 fatal crashes | 1.8 percent, 1 fatal crash | 3.6 percent, 2 fatal crashes |
| Fri | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 1.8 percent, 1 fatal crash | 5.4 percent, 3 fatal crashes | 0.0 percent, 0 fatal crashes | 3.6 percent, 2 fatal crashes |
| Sat | 1.8 percent, 1 fatal crash | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 5.4 percent, 3 fatal crashes | 12.5 percent, 7 fatal crashes | 1.8 percent, 1 fatal crash |
By hour
By month
- Jan1.7%
- Feb10.3%
- Mar0.0%
- Apr5.2%
- May8.6%
- Jun15.5%
- Jul10.3%
- Aug17.2%
- Sep10.3%
- Oct12.1%
- Nov5.2%
- Dec3.4%
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
What fatal crashes in Boise County first hit
The first harmful event was a rollover in 36%; a fixed object such as a tree, pole or barrier in 33%, a collision with another vehicle in 16%, a pedestrian in 1.7%.
| First harmful event | Fatal crashes | Share |
|---|---|---|
| Rollover | 21 | 36% |
| Fixed object (tree, pole, barrier, ditch) | 19 | 33% |
| Collision with another vehicle | 9 | 16% |
| Other | 8 | 14% |
| Pedestrian | 1 | 1.7% |
| Cyclist | 0 | 0.0% |
| Parked vehicle | 0 | 0.0% |
| Not reported | 0 | 0.0% |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
How fatal crashes in Boise County compare with Idaho
The largest difference from Idaho: from 2015 to 2024, 100% of fatal crashes in Boise County were on rural roads, against 75% across Idaho. Also above the Idaho share: motorcycles. Below it: intersections. Shares of fatal crashes from 2015 to 2024, against the share across all of Idaho. A share is only given over 20 crashes; above or below means more than chance would give on 58 crashes.
| Boise | Idaho | ||
|---|---|---|---|
| On rural roads | 100% | 75% | above the Idaho share |
| At or near an intersection | 5.2% | 21% | below the Idaho share |
| In the dark, road unlit | 16% | 27% | about the same as the Idaho share |
| A drinking driver | 33% | 31% | about the same as the Idaho share |
| Speeding | 28% | 22% | about the same as the Idaho share |
| A distracted driver (as recorded) | 14% | 15% | about the same as the Idaho share |
| Occupants killed unbelted | 53% | 58% | about the same as the Idaho share |
| Hit-and-run | 0.0% | 1.7% | about the same as the Idaho share |
| A motorcycle involved | 24% | 14% | above the Idaho share |
| Pedestrians among the dead | 1.7% | 6.9% | about the same as the Idaho share |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Questions about fatal crashes in Boise County, Idaho
- How many people died in car accidents in Boise County in 2024?
- 3 people died in 3 fatal crashes in Boise County, Idaho, in 2024, down from 7 in 2023. Source: NHTSA's Fatality Analysis Reporting System (FARS).
- What is the deadliest road in Boise County?
- State Highway 55 had the most fatal crashes of any numbered road in Boise County from 2015 to 2024: 19, with 20 deaths.
- How many fatal crashes in Boise County involved a drinking driver?
- 19 of 58 fatal crashes in Boise County from 2015 to 2024 involved a driver NHTSA recorded as drinking, 33%, against 31% across Idaho.
Other counties in Idaho with a page
- Ada County
- Canyon County
- Kootenai County
- Bonneville County
- Twin Falls County
- Jerome County
- Bingham County
- Bannock County
- Elmore County
- Bonner County
- Idaho County
- Nez Perce County
All fatal crashes in Idaho, with every county ranked.
Where the Boise County numbers come from
Counted from NHTSA's Fatality Analysis Reporting System, 2024 Annual Report File: every fatal crash NHTSA filed in Boise County (county code 15). A fatal crash is one in which someone died within 30 days. The rate per 100,000 uses the Census Bureau's population estimate for the county; it is the only figure here not counted from FARS. Totals from state highway departments and news reports can differ: they count from their own crash reports, often before every death within 30 days is known, while NHTSA's file is checked against death certificates and revised once a year. The full method.
Download every county with a page as CSV. Free to reuse with credit: “Fatal Crash Data, fatalcrashdata.com/fatal-crashes/idaho/boise-county/, from NHTSA FARS (2024 Annual Report File).”