State Highway 91 in California: fatal crashes
From 2015 to 2024, 235 fatal crashes on State Highway 91 in California killed 247 people, the 8th most of 255 numbered roads in California. In 2024 there were 29 fatal crashes and 30 deaths on the road.
A state highway running through 3 counties of California. All fatal crashes in California.
Deaths on State Highway 91 in California by year
| Year | Fatal crashes | Deaths |
|---|---|---|
| 2024 | 29 | 30 |
| 2023 | 23 | 25 |
| 2022 | 36 | 37 |
| 2021 | 35 | 36 |
| 2020 | 18 | 20 |
| 2019 | 28 | 29 |
| 2018 | 15 | 16 |
| 2017 | 22 | 23 |
| 2016 | 13 | 15 |
| 2015 | 16 | 16 |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Where on State Highway 91 in California: the counties with the most fatal crashes
Riverside County had the most fatal crashes on State Highway 91 from 2015 to 2024: 87, with 90 deaths. Riverside, Los Angeles and Orange counties together held 100% of fatal crashes on State Highway 91 in California from 2015 to 2024. Counties are listed from 5 fatal crashes.
| County | 2024 | 2015 to 2024 | Deaths | |
|---|---|---|---|---|
| 1 | Riverside County | 13 | 87 | 90 |
| 2 | Los Angeles County | 11 | 77 | 84 |
| 3 | Orange County | 5 | 71 | 73 |
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 State Highway 91 in California
The heaviest slot is Sunday, midnight to 4 am (the night from Saturday), with 25 fatal crashes from 2015 to 2024. The worst hour is 2 am to 3 am; the worst month is April.
| Midnight to 4 | 4 to 8 am | 8 to noon | Noon to 4 | 4 to 8 pm | 8 to midnight | |
|---|---|---|---|---|---|---|
| Sun | 10.7 percent, 25 fatal crashes | 4.7 percent, 11 fatal crashes | 1.7 percent, 4 fatal crashes | 1.7 percent, 4 fatal crashes | 3.0 percent, 7 fatal crashes | 3.8 percent, 9 fatal crashes |
| Mon | 5.1 percent, 12 fatal crashes | 1.7 percent, 4 fatal crashes | 1.3 percent, 3 fatal crashes | 1.3 percent, 3 fatal crashes | 1.3 percent, 3 fatal crashes | 3.8 percent, 9 fatal crashes |
| Tue | 3.0 percent, 7 fatal crashes | 2.6 percent, 6 fatal crashes | 0.4 percent, 1 fatal crash | 3.4 percent, 8 fatal crashes | 0.9 percent, 2 fatal crashes | 4.3 percent, 10 fatal crashes |
| Wed | 3.4 percent, 8 fatal crashes | 0.9 percent, 2 fatal crashes | 0.9 percent, 2 fatal crashes | 0.9 percent, 2 fatal crashes | 1.7 percent, 4 fatal crashes | 1.7 percent, 4 fatal crashes |
| Thu | 4.7 percent, 11 fatal crashes | 1.3 percent, 3 fatal crashes | 1.3 percent, 3 fatal crashes | 0.4 percent, 1 fatal crash | 0.0 percent, 0 fatal crashes | 3.4 percent, 8 fatal crashes |
| Fri | 5.6 percent, 13 fatal crashes | 1.3 percent, 3 fatal crashes | 0.4 percent, 1 fatal crash | 0.4 percent, 1 fatal crash | 2.6 percent, 6 fatal crashes | 4.3 percent, 10 fatal crashes |
| Sat | 6.0 percent, 14 fatal crashes | 0.9 percent, 2 fatal crashes | 0.0 percent, 0 fatal crashes | 1.3 percent, 3 fatal crashes | 1.7 percent, 4 fatal crashes | 0.4 percent, 1 fatal crash |
By hour
By month
- Jan10.2%
- Feb4.3%
- Mar8.9%
- Apr12.3%
- May6.4%
- Jun10.6%
- Jul8.1%
- Aug11.1%
- Sep8.1%
- Oct8.5%
- Nov5.5%
- Dec6.0%
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
What fatal crashes on State Highway 91 in California first hit
The first harmful event was a collision with another vehicle in 45%; a fixed object such as a tree, pole or barrier in 20%, a pedestrian in 19%, a parked vehicle in 5.5%.
| First harmful event | Fatal crashes | Share |
|---|---|---|
| Collision with another vehicle | 106 | 45% |
| Fixed object (tree, pole, barrier, ditch) | 47 | 20% |
| Pedestrian | 44 | 19% |
| Parked vehicle | 13 | 5.5% |
| Rollover | 12 | 5.1% |
| Other | 10 | 4.3% |
| Cyclist | 3 | 1.3% |
| 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 State Highway 91 in California compare with the state
The largest difference from California: from 2015 to 2024, 2.6% of fatal crashes on State Highway 91 in California were on rural roads, against 30% across California. Also above the California share: unlit roads at night, drinking drivers, speeding and motorcycles. Below it: intersections. Shares of fatal crashes from 2015 to 2024, against the share across all of California. A share is only given over 20 crashes; above or below means more than chance would give on 235 crashes.
| State Highway 91 | California | ||
|---|---|---|---|
| On rural stretches | 2.6% | 30% | below the California share |
| At or near an intersection | 2.1% | 27% | below the California share |
| In the dark, road unlit | 35% | 25% | above the California share |
| A drinking driver | 34% | 28% | above the California share |
| Speeding | 38% | 30% | above the California share |
| A distracted driver (as recorded) | 3.4% | 4.1% | about the same as the California share |
| Occupants killed unbelted | 38% | 38% | about the same as the California share |
| Hit-and-run | 11% | 11% | about the same as the California share |
| A motorcycle involved | 20% | 15% | above the California share |
| Pedestrians among the dead | 23% | 26% | about the same as the California 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 State Highway 91 in California
- How many fatal crashes have there been on State Highway 91 in California?
- 235 fatal crashes killed 247 people on State Highway 91 in California from 2015 to 2024. In 2024 there were 29 fatal crashes and 30 deaths. Source: NHTSA's Fatality Analysis Reporting System (FARS).
- Where on State Highway 91 in California do the most fatal crashes happen?
- Riverside County had the most fatal crashes on State Highway 91 from 2015 to 2024: 87, with 90 deaths. Los Angeles County was second with 77.
- When do fatal crashes on State Highway 91 in California happen most often?
- The heaviest slot from 2015 to 2024 was Sunday, midnight to 4 am (the night from Saturday), with 25 fatal crashes.
Other roads in California with a page
All fatal crashes in California, with every road ranked.
Where the State Highway 91 numbers come from
Counted from NHTSA's Fatality Analysis Reporting System, 2024 Annual Report File: every fatal crash whose road NHTSA filed as State Highway 91 in California (filed under 9 spellings, such as "SR- 91 RIVERSIDE FWY", "SR-91", "SR-91 ARTESIA BLVD", "SR-91 ARTESIA FREEWAY"). 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.