Fatal crashes in Washington County, Oregon
In 2024, 35 people died in 34 fatal crashes in Washington County, Oregon, 16.7% fewer than in 2023. From 2015 to 2024 the county recorded 275 fatal crashes and 287 deaths, the 5th most of 36 counties in Oregon.
5.7 deaths per 100,000 residents, against 12.6 across Oregon in 2024; 4.8 against 12.4 a year over 2015 to 2024. Population 611,272, Census Bureau estimate. All fatal crashes in Oregon.
Deaths in Washington County by year
| Year | Fatal crashes | Deaths |
|---|---|---|
| 2024 | 34 | 35 |
| 2023 | 39 | 42 |
| 2022 | 26 | 29 |
| 2021 | 21 | 21 |
| 2020 | 23 | 23 |
| 2019 | 30 | 31 |
| 2018 | 25 | 27 |
| 2017 | 21 | 21 |
| 2016 | 28 | 30 |
| 2015 | 28 | 28 |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
The deadliest roads in Washington County
State Highway 8 had the most fatal crashes of any numbered road in Washington County from 2015 to 2024: 37, with 38 deaths. The 8 roads listed held 40% of all fatal crashes in Washington County from 2015 to 2024; 1 US route, 7 state highways. 44% of the county's fatal crashes were on an interstate, US or state route; the other 56% were on county roads and city streets. Routes are listed from 5 fatal crashes.
| Road | Fatal crashes | Deaths | 2022 to 2024 | ||
|---|---|---|---|---|---|
| 1 | State Highway 8 | 37 | 38 | 13 | no page |
| 2 | US 26 | 23 | 27 | 8 | |
| 3 | State Highway 47 | 12 | 14 | 6 | no page |
| 4 | State Highway 6 | 10 | 10 | 2 | no page |
| 5 | State Highway 99 | 10 | 10 | 2 | |
| 6 | State Highway 141 | 6 | 6 | 2 | no page |
| 7 | State Highway 219 | 6 | 6 | 1 | no page |
| 8 | State Highway 99W | 5 | 5 | 1 |
Hillsboro had 17% of the county's fatal crashes from 2015 to 2024, 48 of 275.
Cities NHTSA filed, with their fatal crashes from 2015 to 2024: Hillsboro 48, Beaverton 46, Tigard 21. The city is not filed for crashes outside a city.
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
When fatal crashes happen in Washington County
The heaviest slot is Saturday, 4 to 8 pm, with 16 fatal crashes from 2015 to 2024. The worst hour is 6 pm to 7 pm; the worst month is July.
| Midnight to 4 | 4 to 8 am | 8 to noon | Noon to 4 | 4 to 8 pm | 8 to midnight | |
|---|---|---|---|---|---|---|
| Sun | 2.6 percent, 7 fatal crashes | 0.7 percent, 2 fatal crashes | 0.4 percent, 1 fatal crash | 1.1 percent, 3 fatal crashes | 3.7 percent, 10 fatal crashes | 2.9 percent, 8 fatal crashes |
| Mon | 2.9 percent, 8 fatal crashes | 2.6 percent, 7 fatal crashes | 2.2 percent, 6 fatal crashes | 2.9 percent, 8 fatal crashes | 3.3 percent, 9 fatal crashes | 3.7 percent, 10 fatal crashes |
| Tue | 0.4 percent, 1 fatal crash | 2.2 percent, 6 fatal crashes | 0.7 percent, 2 fatal crashes | 2.9 percent, 8 fatal crashes | 3.3 percent, 9 fatal crashes | 2.9 percent, 8 fatal crashes |
| Wed | 2.6 percent, 7 fatal crashes | 1.8 percent, 5 fatal crashes | 2.2 percent, 6 fatal crashes | 2.6 percent, 7 fatal crashes | 2.9 percent, 8 fatal crashes | 2.9 percent, 8 fatal crashes |
| Thu | 0.7 percent, 2 fatal crashes | 1.5 percent, 4 fatal crashes | 2.2 percent, 6 fatal crashes | 2.6 percent, 7 fatal crashes | 4.0 percent, 11 fatal crashes | 2.2 percent, 6 fatal crashes |
| Fri | 1.1 percent, 3 fatal crashes | 1.5 percent, 4 fatal crashes | 1.5 percent, 4 fatal crashes | 3.7 percent, 10 fatal crashes | 2.9 percent, 8 fatal crashes | 2.6 percent, 7 fatal crashes |
| Sat | 3.7 percent, 10 fatal crashes | 1.5 percent, 4 fatal crashes | 1.5 percent, 4 fatal crashes | 1.5 percent, 4 fatal crashes | 5.9 percent, 16 fatal crashes | 2.9 percent, 8 fatal crashes |
By hour
By month
- Jan6.9%
- Feb9.5%
- Mar7.3%
- Apr6.9%
- May8.0%
- Jun7.3%
- Jul11.6%
- Aug5.8%
- Sep9.8%
- Oct7.3%
- Nov11.6%
- Dec8.0%
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
What fatal crashes in Washington County first hit
The first harmful event was a collision with another vehicle in 35%; a pedestrian in 29%, a fixed object such as a tree, pole or barrier in 24%, a rollover in 4.4%.
| First harmful event | Fatal crashes | Share |
|---|---|---|
| Collision with another vehicle | 97 | 35% |
| Pedestrian | 80 | 29% |
| Fixed object (tree, pole, barrier, ditch) | 67 | 24% |
| Rollover | 12 | 4.4% |
| Cyclist | 9 | 3.3% |
| Other | 9 | 3.3% |
| Parked vehicle | 0 | 0.0% |
| Not reported | 1 | 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 in Washington County compare with Oregon
The largest difference from Oregon: from 2015 to 2024, 28% of fatal crashes in Washington County were on rural roads, against 55% across Oregon. Also above the Oregon share: intersections and pedestrians. Below it: unlit roads at night, drinking drivers and unbelted occupants. Shares of fatal crashes from 2015 to 2024, against the share across all of Oregon. A share is only given over 20 crashes; above or below means more than chance would give on 275 crashes.
| Washington | Oregon | ||
|---|---|---|---|
| On rural roads | 28% | 55% | below the Oregon share |
| At or near an intersection | 33% | 20% | above the Oregon share |
| In the dark, road unlit | 20% | 28% | below the Oregon share |
| A drinking driver | 25% | 31% | below the Oregon share |
| Speeding | 30% | 30% | about the same as the Oregon share |
| A distracted driver (as recorded) | 6.2% | 5.7% | about the same as the Oregon share |
| Occupants killed unbelted | 28% | 34% | below the Oregon share |
| Hit-and-run | 4.4% | 4.6% | about the same as the Oregon share |
| A motorcycle involved | 15% | 15% | about the same as the Oregon share |
| Pedestrians among the dead | 29% | 16% | above the Oregon 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 in Washington County, Oregon
- How many people died in car accidents in Washington County in 2024?
- 35 people died in 34 fatal crashes in Washington County, Oregon, in 2024, 16.7% fewer than in 2023. That is 5.7 deaths per 100,000 residents, against 12.6 across Oregon. Source: NHTSA's Fatality Analysis Reporting System (FARS).
- What is the deadliest road in Washington County?
- State Highway 8 had the most fatal crashes of any numbered road in Washington County from 2015 to 2024: 37, with 38 deaths.
- When do fatal crashes in Washington County happen most often?
- The heaviest slot from 2015 to 2024 was Saturday, 4 to 8 pm, with 16 fatal crashes.
- How many fatal crashes in Washington County involved a drinking driver?
- 69 of 275 fatal crashes in Washington County from 2015 to 2024 involved a driver NHTSA recorded as drinking, 25%, against 31% across Oregon.
Other counties in Oregon with a page
- Multnomah County
- Lane County
- Marion County
- Clackamas County
- Douglas County
- Jackson County
- Linn County
- Deschutes County
- Josephine County
- Klamath County
- Umatilla County
- Coos County
All fatal crashes in Oregon, with every county ranked.
Where the Washington County numbers come from
Counted from NHTSA's Fatality Analysis Reporting System, 2024 Annual Report File: every fatal crash NHTSA filed in Washington County (county code 67). A fatal crash is one in which someone died within 30 days. The rate per 100,000 uses the Census Bureau's population estimate for the county; it is the only figure here not counted from FARS. Totals from state highway departments and news reports can differ: they count from their own crash reports, often before every death within 30 days is known, while NHTSA's file is checked against death certificates and revised once a year. The full method.
Download every county with a page as CSV. Free to reuse with credit: “Fatal Crash Data, fatalcrashdata.com/fatal-crashes/oregon/washington-county/, from NHTSA FARS (2024 Annual Report File).”