US 12 in Idaho: fatal crashes
From 2015 to 2024, 40 fatal crashes on US 12 in Idaho killed 41 people, the 9th most of 66 numbered roads in Idaho. In 2024 there were 8 fatal crashes and 8 deaths on the road.
A US route running through 4 counties of Idaho. All fatal crashes in Idaho.
Deaths on US 12 in Idaho by year
| Year | Fatal crashes | Deaths |
|---|---|---|
| 2024 | 8 | 8 |
| 2023 | 4 | 4 |
| 2022 | 4 | 4 |
| 2021 | 6 | 7 |
| 2020 | 3 | 3 |
| 2019 | 3 | 3 |
| 2018 | 4 | 4 |
| 2017 | 1 | 1 |
| 2016 | 4 | 4 |
| 2015 | 3 | 3 |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Where on US 12 in Idaho: the counties with the most fatal crashes
Idaho County had the most fatal crashes on US 12 from 2015 to 2024: 17, with 18 deaths. Idaho, Nez Perce and Clearwater counties together held 88% of fatal crashes on US 12 in Idaho from 2015 to 2024. Counties are listed from 5 fatal crashes.
| County | 2024 | 2015 to 2024 | Deaths | |
|---|---|---|---|---|
| 1 | Idaho County | 4 | 17 | 18 |
| 2 | Nez Perce County | 2 | 13 | 13 |
| 3 | Clearwater County | 1 | 5 | 5 |
| 4 | Lewis County | 1 | 5 | 5 |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
When fatal crashes happen on US 12 in Idaho
39 fatal crashes on US 12 in 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 11 am to noon; the worst month is June.
| Midnight to 4 | 4 to 8 am | 8 to noon | Noon to 4 | 4 to 8 pm | 8 to midnight | |
|---|---|---|---|---|---|---|
| Sun | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 2.6 percent, 1 fatal crash | 0.0 percent, 0 fatal crashes | 5.1 percent, 2 fatal crashes | 0.0 percent, 0 fatal crashes |
| Mon | 0.0 percent, 0 fatal crashes | 2.6 percent, 1 fatal crash | 0.0 percent, 0 fatal crashes | 2.6 percent, 1 fatal crash | 2.6 percent, 1 fatal crash | 0.0 percent, 0 fatal crashes |
| Tue | 0.0 percent, 0 fatal crashes | 2.6 percent, 1 fatal crash | 5.1 percent, 2 fatal crashes | 2.6 percent, 1 fatal crash | 5.1 percent, 2 fatal crashes | 0.0 percent, 0 fatal crashes |
| Wed | 0.0 percent, 0 fatal crashes | 2.6 percent, 1 fatal crash | 7.7 percent, 3 fatal crashes | 5.1 percent, 2 fatal crashes | 12.8 percent, 5 fatal crashes | 0.0 percent, 0 fatal crashes |
| Thu | 2.6 percent, 1 fatal crash | 2.6 percent, 1 fatal crash | 5.1 percent, 2 fatal crashes | 7.7 percent, 3 fatal crashes | 2.6 percent, 1 fatal crash | 0.0 percent, 0 fatal crashes |
| Fri | 2.6 percent, 1 fatal crash | 2.6 percent, 1 fatal crash | 2.6 percent, 1 fatal crash | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes |
| Sat | 0.0 percent, 0 fatal crashes | 5.1 percent, 2 fatal crashes | 0.0 percent, 0 fatal crashes | 5.1 percent, 2 fatal crashes | 2.6 percent, 1 fatal crash | 0.0 percent, 0 fatal crashes |
By hour
By month
- Jan2.5%
- Feb2.5%
- Mar5.0%
- Apr10.0%
- May2.5%
- Jun20.0%
- Jul17.5%
- Aug17.5%
- Sep10.0%
- Oct2.5%
- Nov7.5%
- Dec2.5%
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
What fatal crashes on US 12 in Idaho first hit
The first harmful event was a collision with another vehicle in 43%; a fixed object such as a tree, pole or barrier in 28%, a rollover in 20%, a pedestrian in 0.0%.
| First harmful event | Fatal crashes | Share |
|---|---|---|
| Collision with another vehicle | 17 | 43% |
| Fixed object (tree, pole, barrier, ditch) | 11 | 28% |
| Rollover | 8 | 20% |
| Other | 4 | 10% |
| Pedestrian | 0 | 0.0% |
| 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 on US 12 in Idaho compare with the state
The largest difference from Idaho: from 2015 to 2024, 45% of fatal crashes on US 12 in Idaho were with a motorcycle, against 14% across Idaho. Also above the Idaho share: rural roads. Below it: intersections and unlit roads at night. 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 40 crashes.
| US 12 | Idaho | ||
|---|---|---|---|
| On rural stretches | 93% | 75% | above the Idaho share |
| At or near an intersection | 5.0% | 21% | below the Idaho share |
| In the dark, road unlit | 10% | 27% | below the Idaho share |
| A drinking driver | 18% | 31% | about the same as the Idaho share |
| Speeding | 18% | 22% | about the same as the Idaho share |
| A distracted driver (as recorded) | 13% | 15% | about the same as the Idaho share |
| Occupants killed unbelted | Not enough data | 58% | |
| Hit-and-run | 0.0% | 1.7% | about the same as the Idaho share |
| A motorcycle involved | 45% | 14% | above the Idaho share |
| Pedestrians among the dead | 0.0% | 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 on US 12 in Idaho
- How many fatal crashes have there been on US 12 in Idaho?
- 40 fatal crashes killed 41 people on US 12 in Idaho from 2015 to 2024. In 2024 there were 8 fatal crashes and 8 deaths. Source: NHTSA's Fatality Analysis Reporting System (FARS).
- Where on US 12 in Idaho do the most fatal crashes happen?
- Idaho County had the most fatal crashes on US 12 from 2015 to 2024: 17, with 18 deaths. Nez Perce County was second with 13.
Other roads in Idaho with a page
All fatal crashes in Idaho, with every road ranked.
Where the US 12 numbers come from
Counted from NHTSA's Fatality Analysis Reporting System, 2024 Annual Report File: every fatal crash whose road NHTSA filed as US 12 in Idaho. Ramps, frontage and service roads are left out. Where two routes share a road, NHTSA files each crash under one of them, so a shared stretch counts on one route only. A fatal crash is one in which someone died within 30 days. Totals in state and news reports for a road usually differ: they include ramps and frontage roads, or count from preliminary reports. The full method.