Idaho in 2017
Deaths 245Fatal crashes 224Per 100,000 14.2US deaths 37,473
FARS data are based on police crash reports and other sources; the drunk-driving measure is based on the highest BAC of any driver in the crash. Final FARS file for 2017.
In 2017, 245 people died in 224 fatal crashes in Idaho, 14.2 deaths per 100,000 residents against 11.5 nationally.
The death toll was about level between 2016 (253) and 2017 (245).
Idaho accounted for 0.7% of the 37,473 crash deaths recorded nationally that year.
29.5% of the state's fatal crashes that year had at least one driver reported as drinking.
By FHWA road function class, the largest share was on other principal arterial roads (41%).
36% of the crashes happened between noon to 6pm; Saturday was the most common day.
Compared with 2016 and the nation
| Measure | Idaho 2017 | Idaho 2016 | United States 2017 |
|---|---|---|---|
| Deaths | 245 | 253 | 37,473 |
| Fatal crashes | 224 | 232 | 34,560 |
| Deaths per 100,000 residents | 14.2 | 15.0 | 11.5 |
| Crashes with a drinking driver | 29% | 28% | 27% |
Counties in 2017
Every county with a fatal crash in 2017, by deaths. Counts under three are shown as "1–2" (small-count rule); the per-100,000 column is blank for them. 40 counties listed.
| County | Fatal crashes | Deaths | Per 100,000 | Deaths 2015–2024 |
|---|---|---|---|---|
| Ada County | 29 | 30 | 5.6 | 259 |
| Canyon County | 20 | 22 | 8.2 | 246 |
| Kootenai County | 18 | 19 | 10.1 | 154 |
| Bannock County | 10 | 13 | 14.3 | 99 |
| Elmore County | 12 | 12 | 40.4 | 90 |
| Bonneville County | 9 | 11 | 8.2 | 132 |
| Jerome County | 8 | 10 | 38.4 | 100 |
| Twin Falls County | 8 | 9 | 9.3 | 112 |
| Valley County | 7 | 9 | 70.4 | 33 |
| Idaho County | 8 | 8 | 44.7 | 82 |
| Shoshone County | 8 | 8 | 56.8 | 37 |
| Bingham County | 7 | 8 | 15.7 | 99 |
| Bonner County | 7 | 7 | 13.0 | 88 |
| Nez Perce County | 7 | 7 | 16.3 | 73 |
| Gooding County | 6 | 6 | 37.1 | 46 |
| Minidoka County | 5 | 5 | 22.0 | 37 |
| Cassia County | 4 | 5 | 19.2 | 71 |
| Adams County | 1–2 | 5 | 100.0 | 23 |
| Boise County | 4 | 4 | 46.6 | 60 |
| Jefferson County | 4 | 4 | 11.5 | 35 |
| Latah County | 4 | 4 | 9.5 | 26 |
| Owyhee County | 4 | 4 | 31.4 | 28 |
| Payette County | 4 | 4 | 14.5 | 50 |
| Blaine County | 3 | 3 | 11.9 | 37 |
| Bear Lake County | 1–2 | 1–2 | — | 11 |
| Boundary County | 1–2 | 1–2 | — | 15 |
| Butte County | 1–2 | 1–2 | — | 14 |
| Custer County | 1–2 | 1–2 | — | 21 |
| Franklin County | 1–2 | 1–2 | — | 22 |
| Gem County | 1–2 | 1–2 | — | 28 |
| Lincoln County | 1–2 | 1–2 | — | 31 |
| Madison County | 1–2 | 1–2 | — | 24 |
| Power County | 1–2 | 1–2 | — | 18 |
| Washington County | 1–2 | 1–2 | — | 21 |
| Fremont County | 1–2 | 1–2 | — | 37 |
| Oneida County | 1–2 | 1–2 | — | 13 |
| Caribou County | 1–2 | 1–2 | — | 16 |
| Clearwater County | 1–2 | 1–2 | — | 18 |
| Lemhi County | 1–2 | 1–2 | — | 21 |
| Lewis County | 1–2 | 1–2 | — | 11 |
Per 100,000 uses the 2024 population estimate for every year, so early-year rates are understated where a county has grown.
Hour of day
Weekday
Road type
Questions and answers
How many people died in crashes in Idaho in 2017?
245 people in 224 fatal crashes, according to NHTSA's FARS 2017 file, or 14.2 per 100,000 residents.
Which county in Idaho had the most crash deaths in 2017?
Ada County with 30 deaths in 29 fatal crashes. The table on this page lists every county with a fatal crash that year.
How did 2017 compare with 2016 in Idaho?
245 deaths against 253 in 2016 (+-3%). Nationally the 2017 total was 37,473.
Provenance
Source: NHTSA Fatality Analysis Reporting System, 2017 national file (accident table, vehicle and person tables); US Census Bureau population estimates. Data through 31 Dec 2024; generated 30 Sep 2026.