I-10 in Arizona: fatal crashes
From 2015 to 2024, 519 fatal crashes on I-10 in Arizona killed 619 people, the most of any numbered road in Arizona. In 2024 there were 63 fatal crashes and 75 deaths on the road.
An interstate running through 8 counties of Arizona. All fatal crashes in Arizona. I-10 in every state.
Deaths on I-10 in Arizona by year
| Year | Fatal crashes | Deaths |
|---|---|---|
| 2024 | 63 | 75 |
| 2023 | 69 | 88 |
| 2022 | 56 | 66 |
| 2021 | 41 | 54 |
| 2020 | 47 | 51 |
| 2019 | 44 | 50 |
| 2018 | 59 | 70 |
| 2017 | 46 | 47 |
| 2016 | 43 | 59 |
| 2015 | 51 | 59 |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Where on I-10 in Arizona: the counties with the most fatal crashes
Maricopa County had the most fatal crashes on I-10 from 2015 to 2024: 220, with 250 deaths. Maricopa, Pima and Pinal counties together held 77% of fatal crashes on I-10 in Arizona from 2015 to 2024; the 5 listed held 99%. Counties are listed from 5 fatal crashes.
| County | 2024 | 2015 to 2024 | Deaths | |
|---|---|---|---|---|
| 1 | Maricopa County | 24 | 220 | 250 |
| 2 | Pima County | 12 | 102 | 116 |
| 3 | Pinal County | 9 | 79 | 102 |
| 4 | Cochise County | 10 | 61 | 78 |
| 5 | La Paz County | 8 | 54 | 70 |
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 I-10 in Arizona
The heaviest slot is Saturday, 4 to 8 pm, with 27 fatal crashes from 2015 to 2024. The worst hour is 4 am to 5 am; the worst month is October.
| Midnight to 4 | 4 to 8 am | 8 to noon | Noon to 4 | 4 to 8 pm | 8 to midnight | |
|---|---|---|---|---|---|---|
| Sun | 2.3 percent, 12 fatal crashes | 3.1 percent, 16 fatal crashes | 1.9 percent, 10 fatal crashes | 2.5 percent, 13 fatal crashes | 1.9 percent, 10 fatal crashes | 3.3 percent, 17 fatal crashes |
| Mon | 2.7 percent, 14 fatal crashes | 2.7 percent, 14 fatal crashes | 0.8 percent, 4 fatal crashes | 1.9 percent, 10 fatal crashes | 1.6 percent, 8 fatal crashes | 2.1 percent, 11 fatal crashes |
| Tue | 1.6 percent, 8 fatal crashes | 2.3 percent, 12 fatal crashes | 1.2 percent, 6 fatal crashes | 1.6 percent, 8 fatal crashes | 1.6 percent, 8 fatal crashes | 2.1 percent, 11 fatal crashes |
| Wed | 2.9 percent, 15 fatal crashes | 1.0 percent, 5 fatal crashes | 2.5 percent, 13 fatal crashes | 3.5 percent, 18 fatal crashes | 1.6 percent, 8 fatal crashes | 2.7 percent, 14 fatal crashes |
| Thu | 2.3 percent, 12 fatal crashes | 2.1 percent, 11 fatal crashes | 2.3 percent, 12 fatal crashes | 1.6 percent, 8 fatal crashes | 3.1 percent, 16 fatal crashes | 2.7 percent, 14 fatal crashes |
| Fri | 2.1 percent, 11 fatal crashes | 2.1 percent, 11 fatal crashes | 1.4 percent, 7 fatal crashes | 2.5 percent, 13 fatal crashes | 2.5 percent, 13 fatal crashes | 3.1 percent, 16 fatal crashes |
| Sat | 4.3 percent, 22 fatal crashes | 3.7 percent, 19 fatal crashes | 1.6 percent, 8 fatal crashes | 1.9 percent, 10 fatal crashes | 5.2 percent, 27 fatal crashes | 3.9 percent, 20 fatal crashes |
By hour
By month
- Jan7.7%
- Feb7.5%
- Mar6.7%
- Apr8.9%
- May9.4%
- Jun8.5%
- Jul9.4%
- Aug8.3%
- Sep7.7%
- Oct9.6%
- Nov8.7%
- Dec7.5%
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Fatal crashes per mile on I-10 in Arizona
13.2 fatal crashes a year per 100 miles over 2015 to 2024, on 393 miles of I-10 in Arizona, against 9.9 for all interstates in Arizona. That ranks 2 of 5 interstates in Arizona and 41 of 172 interstate pages on this site.
Mileage from the FHWA Interstate route log (table 1), the only figure here not counted from FARS. Crashes per mile of road, not per vehicle: FARS records crashes, not traffic.
What fatal crashes on I-10 in Arizona first hit
The first harmful event was a collision with another vehicle in 40%; a rollover in 25%, a fixed object such as a tree, pole or barrier in 16%, a pedestrian in 11%.
| First harmful event | Fatal crashes | Share |
|---|---|---|
| Collision with another vehicle | 208 | 40% |
| Rollover | 131 | 25% |
| Fixed object (tree, pole, barrier, ditch) | 84 | 16% |
| Pedestrian | 59 | 11% |
| Other | 18 | 3.5% |
| Parked vehicle | 15 | 2.9% |
| Cyclist | 2 | 0.4% |
| Not reported | 2 | 0.4% |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
How fatal crashes on I-10 in Arizona compare with the state
The largest difference from Arizona: from 2015 to 2024, 0.2% of fatal crashes on I-10 in Arizona were at or near an intersection, against 31% across Arizona. Also above the Arizona share: rural roads, unlit roads at night and speeding. Below it: drinking drivers, hit-and-runs, motorcycles and pedestrians. Shares of fatal crashes from 2015 to 2024, against the share across all of Arizona. A share is only given over 20 crashes; above or below means more than chance would give on 519 crashes.
| I-10 | Arizona | ||
|---|---|---|---|
| On rural stretches | 47% | 31% | above the Arizona share |
| At or near an intersection | 0.2% | 31% | below the Arizona share |
| In the dark, road unlit | 28% | 17% | above the Arizona share |
| A drinking driver | 17% | 22% | below the Arizona share |
| Speeding | 41% | 33% | above the Arizona share |
| A distracted driver (as recorded) | 9.2% | 8.1% | about the same as the Arizona share |
| Occupants killed unbelted | 51% | 54% | about the same as the Arizona share |
| Hit-and-run | 4.2% | 7.8% | below the Arizona share |
| A motorcycle involved | 8.9% | 18% | below the Arizona share |
| Pedestrians among the dead | 11% | 21% | below the Arizona 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 I-10 in Arizona
- How many fatal crashes have there been on I-10 in Arizona?
- 519 fatal crashes killed 619 people on I-10 in Arizona from 2015 to 2024. In 2024 there were 63 fatal crashes and 75 deaths. Source: NHTSA's Fatality Analysis Reporting System (FARS).
- Where on I-10 in Arizona do the most fatal crashes happen?
- Maricopa County had the most fatal crashes on I-10 from 2015 to 2024: 220, with 250 deaths. Pima County was second with 102.
- When do fatal crashes on I-10 in Arizona happen most often?
- The heaviest slot from 2015 to 2024 was Saturday, 4 to 8 pm, with 27 fatal crashes.
- How dangerous is I-10 in Arizona per mile?
- 13.2 fatal crashes a year per 100 miles over 2015 to 2024, on 393 miles of road, against 9.9 for all interstates in Arizona. That ranks 2 of 5 interstates in Arizona and 41 of 172 interstate pages on this site. FARS records crashes, not traffic, so this is crashes per mile of road, not per vehicle.
Other roads in Arizona with a page
- I-17
- I-19
- I-40
- I-8
- State Highway 101
- State Highway 202
- State Highway 260
- State Highway 77
- State Highway 85
- State Highway 86
- State Highway 87
- State Highway 89
All fatal crashes in Arizona, with every road ranked.
Where the I-10 numbers come from
Counted from NHTSA's Fatality Analysis Reporting System, 2024 Annual Report File: every fatal crash whose road NHTSA filed as I-10 in Arizona (filed under 5 spellings, such as "I-10", "I-10 FRONT", "I-10 NONCARD", "I-10 PEARL HARBOR MEMORIAL HWY"). 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.