Last updated · Source: CCRS (data.ca.gov), FARS for fatal crashes

Motorcycle crash statistics and hotspots in Mill Valley, CA

59 motorcycle crashes were reported in Mill Valley from 2021–2026, 1 of them serious or fatal. Below are the spots where they keep happening, what usually goes wrong at each one, and what to watch for.
motorcycle crashes, 2021–2026
59
motorcycle crashes, 2021–2026
serious or fatal
1
serious or fatal
fatal
0
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street with the most
Blithedale Ave
street with the most
Open Mill Valley on the motorcycling mapOpen Mill Valley on the motorcycling map
1–5: the spots with the most motorcycle crashes, explained below. Map © Mapbox © OpenStreetMap.

Is Mill Valley safe to ride a motorcycle?

This page covers traffic crashes, not crime. We don't rate cities as safe or unsafe: crash counts can't say how risky a street is, and busy streets have more crashes partly because more people use them. What the records show: 59 motorcycle crashes were reported in Mill Valley from 2021–2026, 1 of them serious or fatal. The most were at East Blithedale Ave & Throckmorton Ave (9). 46% involved no other vehicle, usually running wide or losing grip. 7% involved a car turning left across the rider.

Where to look next

How motorcyclists crash in Mill Valley

  • 46% involved no other vehicle, usually running wide or losing grip.
  • 7% involved a car turning left across the rider.
  • 20% happened after dark.
  • 15% were hit-and-run.

What the reports show about motorcycle crashes in Mill Valley

  • 20% (California: 25%) of crashes happened after dark.
  • 2% (California: 28%) left someone seriously hurt or killed.
  • The busiest hour was 9 a.m. (California: 5 p.m.).

Set against all motorcycle crashes in California, 2021–2026. Without traffic counts these can't say how risky a street is.

Where motorcycle crashes cluster

Spots with 3 or more reported crashes within about 250 m, worst first.

  1. 019 crashes

    East Blithedale Ave & Throckmorton Ave

    Close passes and cars turning alongside

    5 of 9 crashes were sideswipes: a vehicle alongside, typically a close pass, a right hook, or an opening car door.

    • Don't linger in drivers' blind spots, and watch for cars changing lanes or turning into driveways alongside you.
    See it on the map
  2. 028 crashes

    East Blithedale Ave & Camino Alto

    Close passes and cars turning alongside

    4 of 8 crashes were sideswipes: a vehicle alongside, typically a close pass, a right hook, or an opening car door.

    • Don't linger in drivers' blind spots, and watch for cars changing lanes or turning into driveways alongside you.
    See it on the map
  3. 037 crashes

    Miller Ave & Montford Ave

    Close passes and cars turning alongside

    4 of 7 crashes were sideswipes: a vehicle alongside, typically a close pass, a right hook, or an opening car door.

    • Don't linger in drivers' blind spots, and watch for cars changing lanes or turning into driveways alongside you.
    See it on the map
  4. 045 crashes

    Millwood St & Miller Ave

    Close passes and cars turning alongside

    2 of 5 crashes were sideswipes: a vehicle alongside, typically a close pass, a right hook, or an opening car door.

    • Don't linger in drivers' blind spots, and watch for cars changing lanes or turning into driveways alongside you.
    See it on the map
  5. 054 crashes

    Miller Ave & Camino Alto

    Riders hit from behind

    3 of 4 crashes were rear-end: hit from behind.

    • Check your mirrors when slowing, flash your brake light, and leave an escape gap when you stop in traffic.
    See it on the map
  6. 063 crashes

    Blithedale Ave & Roque Moraes Dr

    A mix of crash types

    • No single crash pattern stands out here. Ride within your sight distance and keep extra space.
    See it on the map

Streets with the most motorcycle crashes in Mill Valley

StreetCrashesSerious/fatal
Blithedale Ave100
Miller Ave100
Throckmorton Ave40
East Blithedale Ave40

Reported motorcycle crashes, 2021–2026, counted by the street each police report names first, so a crash at a corner counts toward one of its two streets. Long, busy streets collect more crashes partly because more people use them.

Motorcycle crashes in Mill Valley by year

YearCrashesSerious/fatal
202180
202240
2023140
2024130
202590
2026111

Common questions about Mill Valley

Where do the most motorcycle crashes happen in Mill Valley?
The worst spot is East Blithedale Ave & Throckmorton Ave, with 9 reported motorcycle crashes from 2021–2026. Next are East Blithedale Ave & Camino Alto (8) and Miller Ave & Montford Ave (7).
How many motorcyclists were killed in Mill Valley?
No deaths were reported in 59 reported motorcycle crashes in Mill Valley from 2021–2026, and 1 left someone seriously hurt or killed.
How do motorcyclists usually crash in Mill Valley?
46% involved no other vehicle, usually running wide or losing grip. 7% involved a car turning left across the rider. 20% happened after dark. 15% were hit-and-run.
When and where do motorcycle crashes happen in Mill Valley, compared with California?
Of 59 reported motorcycle crashes in Mill Valley from 2021–2026: 20% (California: 25%) of crashes happened after dark. 2% (California: 28%) left someone seriously hurt or killed. The busiest hour was 9 a.m. (California: 5 p.m.).
Which streets in Mill Valley have the most motorcycle crashes?
By the street each police report names first, 2021–2026: Blithedale Ave (10), Miller Ave (10), Throckmorton Ave (4), East Blithedale Ave (4). Long, busy streets collect more crashes partly because more people use them.
How many motorcycle crashes happen in Mill Valley each year?
Reported motorcycle crashes with map locations: 2021: 8, 2022: 4, 2023: 14, 2024: 13, 2025: 9, 2026: 11. The latest year can rise as late reports come in.
Where does this data come from?
Police crash reports in the California Crash Reporting System (CCRS), published by the state on data.ca.gov. Only crashes reported with map coordinates are counted, so the real totals are higher.

Nearby cities

Source: California Crash Reporting System (CCRS), 2021–2026. A report with no coordinates is placed at the intersection its street names give; reports with neither are not counted, so these numbers are lower than the real total. Freeway crashes are included: many motorcycle crashes in cities happen on them. Busy streets show more crashes partly because more people use them. Data last rebuilt 2026-10-07. How the data works.