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Idaho traffic deaths

238

People killed in motor vehicle crashes in Idaho, 2024

−13.5% since 2023 (275); +6.3% since 2019 (224); +28.0% since 2014 (186)

Source: National Highway Traffic Safety Administration, Fatality Analysis Reporting System (FARS). Data period 2024. Published . Newest release as of ; next expected by April 2027.

Persons killed in motor vehicle crashes, from the Fatality Analysis Reporting System's ACCIDENT file.

Comparison

Among 50 states and the District of Columbia, Idaho ranked 25th highest (tied with California) in 2024 on traffic deaths per 100 million vehicle miles from the National Highway Traffic Safety Administration. Mississippi was highest at 1.81 per 100 million vehicle miles and Massachusetts lowest at 0.59 per 100 million vehicle miles.

Idaho's figure is 0.6% of the national figure of 39,254.

Among 44 Idaho counties in 2024, Ada County was highest at 29 and Lemhi County lowest at 0.

The largest category in deaths by road type is Rural Other Principal Arterial at 58; next is Rural Major Collector at 41.

Historical data

Idaho traffic deaths, 2010 to 2024Idaho traffic deaths, 2010 to 2024. Idaho: 209 in 2010, 238 in 2024.0100200300201020152020CountIdaho traffic deaths, 2010 to 2024Idaho traffic deaths, 2010 to 2024. Idaho: 209 in 2010, 238 in 2024.0100200300201020152020CountIdaho traffic deaths, 2010 to 2024Idaho traffic deaths, 2010 to 2024. Idaho: 209 in 2010, 238 in 2024.0100200300201020152020Count

Source: NHTSA, Fatality Analysis Reporting System (FARS).

Data table (15 rows)
PeriodIdaho (count)
2010209
2011167
2012184
2013214
2014186
2015216
2016253
2017245
2018234
2019224
2020214
2021273
2022215
2023275
2024238

By county

Ada County: 29 Count (2024)Adams County: 2 Count (2024)Bannock County: 8 Count (2024)Bear Lake County: 1 Count (2024)Benewah County: 1 Count (2024)Bingham County: 8 Count (2024)Blaine County: 1 Count (2024)Boise County: 3 Count (2024)Bonner County: 6 Count (2024)Bonneville County: 23 Count (2024)Boundary County: 2 Count (2024)Butte County: 0 Count (2024)Camas County: 0 Count (2024)Canyon County: 23 Count (2024)Caribou County: 0 Count (2024)Cassia County: 12 Count (2024)Clark County: 2 Count (2024)Clearwater County: 1 Count (2024)Custer County: 1 Count (2024)Elmore County: 3 Count (2024)Franklin County: 5 Count (2024)Fremont County: 1 Count (2024)Gem County: 2 Count (2024)Gooding County: 7 Count (2024)Idaho County: 15 Count (2024)Jefferson County: 1 Count (2024)Jerome County: 7 Count (2024)Kootenai County: 12 Count (2024)Latah County: 2 Count (2024)Lemhi County: 0 Count (2024)Lewis County: 1 Count (2024)Lincoln County: 5 Count (2024)Madison County: 4 Count (2024)Minidoka County: 2 Count (2024)Nez Perce County: 7 Count (2024)Oneida County: 2 Count (2024)Owyhee County: 3 Count (2024)Payette County: 9 Count (2024)Power County: 3 Count (2024)Shoshone County: 3 Count (2024)Teton County: 1 Count (2024)Twin Falls County: 14 Count (2024)Valley County: 4 Count (2024)Washington County: 2 Count (2024)
  • 0 to 0
  • 1 to 1
  • 2 to 3
  • 4 to 7
  • 8 to 29

Source: NHTSA, Fatality Analysis Reporting System (FARS).

Data table (44 rows)
County2024
Ada County29
Bonneville County23
Canyon County23
Idaho County15
Twin Falls County14
Cassia County12
Kootenai County12
Payette County9
Bannock County8
Bingham County8
Gooding County7
Jerome County7
Nez Perce County7
Bonner County6
Franklin County5
Lincoln County5
Madison County4
Valley County4
Boise County3
Elmore County3
Owyhee County3
Power County3
Shoshone County3
Adams County2
Boundary County2
Clark County2
Gem County2
Latah County2
Minidoka County2
Oneida County2
Washington County2
Bear Lake County1
Benewah County1
Blaine County1
Clearwater County1
Custer County1
Fremont County1
Jefferson County1
Lewis County1
Teton County1
Butte County0
Camas County0
Caribou County0
Lemhi County0

Compared with other states

Every state is compared on traffic deaths per 100 million vehicle miles from the National Highway Traffic Safety Administration: Traffic deaths for the year, from NHTSA's Fatality Analysis Reporting System, divided by vehicle miles traveled on public roads for the same year, summed from the functional-system rows of FHWA Highway Statistics table VM-2, times 100,000,000.

Per 100 million vehicle miles

  1. Mississippi1.81
  2. Arizona1.74
  3. South Carolina1.67
  4. Montana1.49
  5. Nevada1.47
  6. Oregon1.44
  7. Washington1.21
  8. Idaho1.19
  9. Wyoming1.10
  10. Utah0.77
  11. Rhode Island0.68
  12. Massachusetts0.59

Source: NHTSA, Traffic deaths per 100 million vehicle miles (computed by Understand Idaho).

Data table (51 rows)
State2024
1. Mississippi1.81
2. Arizona1.74
3. South Carolina1.67
4. Arkansas1.53
5. Tennessee1.52
6. Montana1.49
7. West Virginia1.49
8. Nevada1.47
9. Kentucky1.44
10. Oregon1.44
11. New Mexico1.43
12. South Dakota1.40
13. Oklahoma1.39
14. Louisiana1.36
15. Texas1.35
16. District of Columbia1.33
17. Alabama1.32
18. Alaska1.27
19. Delaware1.27
20. Florida1.26
21. Colorado1.25
22. North Carolina1.24
23. Washington1.21
24. California1.19
25. Idaho1.19
26. Pennsylvania1.18
27. Maine1.17
28. Missouri1.17
29. Georgia1.15
30. Nebraska1.15
31. Illinois1.13
32. Michigan1.10
33. Wyoming1.10
34. Kansas1.07
35. Iowa1.05
36. Virginia1.04
37. Maryland1.01
38. Connecticut1.00
39. Ohio1.00
40. Hawaii0.96
41. New Hampshire0.96
42. Indiana0.94
43. New York0.91
44. North Dakota0.90
45. Wisconsin0.86
46. New Jersey0.84
47. Vermont0.82
48. Minnesota0.81
49. Utah0.77
50. Rhode Island0.68
51. Massachusetts0.59

Deaths by road type

This breakdown is from Federal Highway Administration, on a different basis than the headline figure above. Persons killed in motor vehicle crashes by rural/urban area and functional road system, from FHWA Highway Statistics table FI-20.

Count

  1. Rural Other Principal Arterial58
  2. Rural Major Collector41
  3. Rural Local27
  4. Rural Interstate24
  5. Urban Other Principal Arterial23
  6. Rural Minor Arterial21
  7. Urban Minor Arterial14
  8. Urban Major Collector12
  9. Rural Minor Collector7
  10. Urban Other Freeways and Expressways6
  11. Urban Interstate2
  12. Urban Local2
  13. Rural Other Freeways and Expressways1
  14. Unknown Unknown0
  15. Urban Minor Collector0

Source: FHWA, Highway Statistics series.

Data table (15 rows)
Road type2024 (count)Share of total
Rural Other Principal Arterial5824.4%
Rural Major Collector4117.2%
Rural Local2711.3%
Rural Interstate2410.1%
Urban Other Principal Arterial239.7%
Rural Minor Arterial218.8%
Urban Minor Arterial145.9%
Urban Major Collector125.0%
Rural Minor Collector72.9%
Urban Other Freeways and Expressways62.5%
Urban Interstate20.8%
Urban Local20.8%
Rural Other Freeways and Expressways10.4%
Unknown Unknown00.0%
Urban Minor Collector00.0%
  • Vehicle miles traveled (VM-2) is an estimate from each state's own travel monitoring program, not a direct count.
  • Traffic fatalities (FI-20) are Fatality Analysis Reporting System (FARS) counts as FHWA republishes them by functional system.
  • Vehicle registrations (MV-1) count registered vehicles, not owners; one business or agency vehicle counts once regardless of drivers.
  • The licensed-drivers table (DL-1C) starts in 2010 in this republication; earlier years are not available through this source.
  • No source table prints a state total for its category breakdown; a state total here is summed from the categories.
  • Puerto Rico appears in the source tables but is excluded here; it is not in this site's geography list.
  • Idaho's MV-1 vehicle-registration total rises from 1,378,190 in 2010 to 1,625,204 in 2011, about 18 percent. The increase concentrates in the Truck, Private (up 166,972) and Auto, Private (up 68,546) categories; FHWA's published MV-1 table carries no footnote for Idaho in either year explaining the change.
  • Some MV-1 rows, Idaho's included, carry a fractional vehicle count (for example, Idaho's 2012 Auto, Private row is 571,308.21) as FHWA's republication prints it. This dataset stores the figure as printed rather than rounding it.

Deaths per 100 million vehicle miles

1.19 per 100 million vehicle miles in 2024 (estimate). Traffic deaths for the year, from NHTSA's Fatality Analysis Reporting System, divided by vehicle miles traveled on public roads for the same year, summed from the functional-system rows of FHWA Highway Statistics table VM-2, times 100,000,000.

Deaths per 100 million vehicle miles, 2010 to 2024Deaths per 100 million vehicle miles, 2010 to 2024. Traffic deaths per 100 million vehicle miles: 1.32 in 2010, 1.19 in 2024.1.001.201.401.60201020152020Per 100 million vehicle milesDeaths per 100 million vehicle miles, 2010 to 2024Deaths per 100 million vehicle miles, 2010 to 2024. Traffic deaths per 100 million vehicle miles: 1.32 in 2010, 1.19 in 2024.1.001.201.401.60201020152020Per 100 million vehicle milesDeaths per 100 million vehicle miles, 2010 to 2024Deaths per 100 million vehicle miles, 2010 to 2024. Traffic deaths per 100 million vehicle miles: 1.32 in 2010, 1.19 in 2024.1.001.201.401.60201020152020Per 100 million vehicle miles

Source: NHTSA, Traffic deaths per 100 million vehicle miles (computed by Understand Idaho).

Data table (15 rows)
PeriodTraffic deaths per 100 million vehicle miles (per 100 million vehicle miles)
20101.32
20111.05
20121.13
20131.34
20141.15
20151.30
20161.47
20171.42
20181.32
20191.24
20201.23
20211.41
20221.12
20231.39
20241.19

Source

Organization
National Highway Traffic Safety Administration
Dataset
Fatality Analysis Reporting System (FARS)
Geography
Nation, states, the District of Columbia, and Idaho counties
Time coverage
2010-2024
Update frequency
Annual
Published
Newest release as of
; next expected by April 2027
Original file
https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip
Methodology
https://www.nhtsa.gov/research-data/fatality-analysis-reporting-system-fars
License
Public domain. U.S. federal government work.
Our copy
Fatality Analysis Reporting System (FARS)

Caveats

  • NHTSA publishes one national file per year; this dataset combines each year's file back to 2010.
  • A death counts in FARS if it occurs within 30 days of a crash on a public road.
  • The county recorded is where the crash occurred, not where the person who died lived.
  • FARS is a census of fatal motor vehicle crashes compiled from state crash and death records, not a sample.
  • The newest year available may be an early release later revised as a final annual file.

State comparison:

Organization
National Highway Traffic Safety Administration
Dataset
Traffic deaths per 100 million vehicle miles (computed by Understand Idaho)
Geography
Nation, states, the District of Columbia, and Idaho counties
Time coverage
2010-2024
Update frequency
Annual
Published
Newest release as of
; next expected by April 2027
Original file
https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip
License
Public domain. U.S. federal government work.
Our copy
Traffic deaths per 100 million vehicle miles (computed by Understand Idaho)

Caveats

  • Computed by Understand Idaho from Fatality Analysis Reporting System (FARS) and Highway Statistics series; it is not a figure the publisher releases.

Inputs: Fatality Analysis Reporting System (FARS) and Highway Statistics series.

Cite as Understand Idaho, “Idaho traffic deaths”, https://understandidaho.com/transportation/traffic-deaths/; cite the publisher above for the figures. See the data catalog.

This page was last updated .