Fatal RoadsSearch

Edition: FARS 2024, annual fileNHTSA released it on Release dates

Idaho fatal crashes in 2018

FARS records 234 deaths in 215 fatal crashes in Idaho in 2018.

In 2017 it records 245 deaths in 224 fatal crashes.

In 2018 the rate is 13.4 deaths for each 100,000 residents in Idaho and 11.3 in the United States.

By deaths for each 100,000 residents in 2018, Idaho was number 21 of 51, the 50 states and the District of Columbia.

Deaths in Idaho fell by 4.5% from 2017 to 2018. In the United States they fell by 1.7%.

In 2018, a driver was recorded as drinking in 23.7% of fatal crashes in Idaho and 25.7% in the United States.

To qualify as a FARS case, the crash had to involve a motor vehicle traveling on a trafficway customarily open to the public and must have resulted in the death of a motorist or a non-motorist within 30 days of the crash.

The set of first files, known as the Annual Report File (ARF), is released following the crash year. The ARF is replaced about a year later with a final file, which contains additional cases or updates to cases that had become available after the ARF was released.

NHTSA's words. Source: NHTSA, Fatality Analysis Reporting System Analytical User's Manual, 1975-2024 (DOT HS 813 794, April 2026), copied on .

NHTSA released the final file of 2018 on 18 Dec 2020. Release dates

2018 beside 2017

Table 1.Idaho in 2018, in 2017 and the United States in 2018
FigureIdaho, 2018Idaho, 2017United States, 2018
Deaths23424536,835
Fatal crashes21522433,919
Deaths for each 100,000 residents13.414.211.3
Fatal crashes with a driver recorded as drinking51668,708

Note: FARS records a driver as drinking when police reported alcohol involvement or a test of the driver was positive for alcohol. It is not NHTSA's alcohol-impaired measure. NHTSA's definitions

Counties in 2018

Table 2.Idaho: counties with a fatal crash in 2018, in name order
CountyDeathsFatal crashes
Ada County3128
Adams County33
Bannock County88
Bear Lake County1 or 21 or 2
Benewah County54
Bingham County77
Blaine County1 or 21 or 2
Boise County66
Bonner County87
Bonneville County1111
Boundary County1 or 21 or 2
Canyon County2825
Caribou County43
Cassia County1 or 21 or 2
Clark County1 or 21 or 2
Elmore County77
Franklin County1 or 21 or 2
Fremont County65
Gem County1 or 21 or 2
Gooding County1 or 21 or 2
Idaho County95
Jefferson County44
Jerome County98
Kootenai County1818
Latah County44
Lemhi County1 or 21 or 2
Lewis County1 or 21 or 2
Lincoln County54
Madison County1 or 21 or 2
Minidoka County66
Nez Perce County99
Oneida County55
Owyhee County1 or 21 or 2
Payette County44
Power County33
Shoshone County1 or 21 or 2
Teton County1 or 21 or 2
Twin Falls County109
Valley County1 or 21 or 2
Washington County1 or 21 or 2

Note: a county with no fatal crash in 2018 is not in the table. A count of 1 or 2 is written "1 or 2".

Time of day and weekday

Table 3.Idaho: fatal crashes by time of day, 2018
Time of dayFatal crashesShare
Midnight to 6 a.m.4119.1%
6 a.m. to noon4219.5%
Noon to 6 p.m.7735.8%
6 p.m. to midnight5525.6%
Table 4.Idaho: fatal crashes by weekday, 2018
WeekdayFatal crashesShare
Sunday3214.9%
Monday2913.5%
Tuesday2511.6%
Wednesday2813.0%
Thursday219.8%
Friday4119.1%
Saturday3918.1%

Note: the tables have the fatal crashes with a known hour or weekday.

Road function class

Table 5.Idaho: fatal crashes by road function class, 2018
Road function classFatal crashesShare
Interstate3817.7%
Other freeways and expressways00.0%
Other principal arterial8037.2%
Minor arterial3415.8%
Major collector2612.1%
Minor collector83.7%
Local2913.5%
Not reported0n/a

Note: the shares are of the crashes with a reported class. Road function classes

Cite this page

Fatal Roads. Idaho fatal crashes in 2018. https://fatalroads.com/state/idaho/2018/. Source: National Highway Traffic Safety Administration, Fatality Analysis Reporting System, FARS 2024 annual file. Data to .

The address of this page does not change.

Source of the figures

Counts: National Highway Traffic Safety Administration, Fatality Analysis Reporting System, national file of 2018. NHTSA released the final file of 2018 on 18 Dec 2020. Residents: Census Bureau, Population Estimates Program, vintage 2025. Data to .

How the figures are made. Data sources and licences. Corrections.

Questions

Which file does the 2018 page use?

NHTSA released the final file of 2018 on 18 Dec 2020.

What part of the deaths in the United States in 2018 was in Idaho?

Idaho had 234 of the 36,835 deaths in the United States in 2018. That is 0.6 percent.

In how many counties of Idaho did FARS record a fatal crash in 2018?

FARS records one or more fatal crashes in 40 counties of Idaho in 2018.

How many fatal crashes in Idaho in 2018 had a driver recorded as drinking?

FARS records a driver as drinking in 51 of 215 fatal crashes in 2018.