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Washington Traffic Safety Commission data

How dangerous is riding a motorcycle in Washington?

Riskier than driving, and less random than it looks. Washington motorcyclist deaths have run above 100 a year in recent years, and the state's own analysis keeps surfacing the same pattern: the riders being killed are disproportionately those who never completed training and were never legally endorsed.

Updated July 24, 2026 · 3 min read · Reviewed by the WMST examiner team

The scale

The Washington Traffic Safety Commission tracks motorcyclist fatalities. Recent years have run substantially above the state's own earlier baseline, with annual totals above one hundred and a peak in the mid-2020s that the commission described as the highest Washington had experienced.

Two things are true at once. Motorcyclists are a small fraction of road users and a large fraction of road deaths. And the trend is not fixed: the most recent state reporting shows fatalities falling from that peak.

For current-year figures, go to the WTSC motorcyclist data directly rather than trusting any secondary page, including this one.

The pattern worth acting on

Buried in the state data is the finding that should change behaviour: a large majority of riders killed in Washington had no record of completing a motorcycle training program, and a substantial share were not legally endorsed at all.

The commission has also stated that endorsed riders have fewer infractions and are less likely to be involved in fatal collisions than unendorsed riders.

Be careful with that correlation. Training is not a force field, and the kind of person who gets trained and endorsed may also be the kind of person who wears gear and rides sober. But the association is strong, consistent, and it points the same direction every year.

What actually kills riders here

The leading rider-side contributing factors the state identifies are consistent and unglamorous:

  • Speed. Not top speed on a straight, but carrying too much into a situation that then requires options you no longer have.
  • Losing control in corners and curves. The single most preventable category, and almost always a case of entering faster than the rider can process, then rolling off or grabbing brake mid-corner.
  • Improper passing.
  • Riding under the influence.

Notice what is not on that list: mechanical failure, and freak events. Most of this is decision-making under load, which is exactly the thing that training rehearses.

The Washington-specific factors

Riding here has a local risk profile. Nine months of wet road surfaces, and the first rain after a dry spell lifting accumulated oil to make the most treacherous surface of the year. Chip seal season scattering loose gravel across rural corners. Mountain passes where weather changes faster than riders expect. Heavy commuter traffic on I-5 and 405 where the left-turning driver problem concentrates.

None of that makes Washington a bad place to ride. It makes it a place where the specific skills of wet-road braking, surface reading and cornering discipline pay for themselves quickly.

What reduces the number

The honest list, in order of leverage:

  1. Get trained and endorsed. It is the strongest single association in the state's data, and riding unendorsed is separately an infraction carrying an extra $250.
  2. Practise emergency braking until it is automatic. The gap between a trained and untrained stop is measured in metres, and metres are the whole margin.
  3. Choose a first bike you can meter. Power you cannot modulate is the most common way a competent new rider gets hurt.
  4. Wear the gear every time. A helmet is legally required here for rider and passenger; the rest is up to you and it is not close.
  5. Never ride impaired. Balance degrades first.

Common questions

How many motorcyclists die each year in Washington?

Recent annual totals have run above one hundred, peaking in the mid-2020s before declining in the most recent reporting. Check the Washington Traffic Safety Commission for current-year figures.

Are trained riders safer in Washington?

The state reports that endorsed riders have fewer infractions and are less likely to be involved in fatal collisions than unendorsed riders, and that a large majority of riders killed have no record of completing a training program.

What causes most motorcycle deaths in Washington?

The leading rider-side contributing factors identified by the state are speed, losing control in corners and curves, improper passing, and riding under the influence.

Is riding a motorcycle in Washington more dangerous than elsewhere?

Washington adds wet road surfaces for much of the year, chip seal gravel, mountain passes and dense commuter traffic. Those are trainable conditions rather than reasons not to ride.

The strongest number in the data is training.

WMST is contracted with the Washington DOL to train riders and administer the official tests. Courses start at $159 with the motorcycle provided.

Ready to begin?

Pick your starting line.

Whether you're chasing a first license or a motorcycle endorsement, the next step starts here. One register page, every program.

Teamwork is the fuel that allows the individual to unlock their full potential.

The WMST team