ZIP 94933 (Forest Knolls, CA) truck route planning & crash data
Plan safer truck routes around ZIP 94933: commercial truck and garbage truck crashes here and in Marin County, dangerous roads, seasonality and route safety data for fleets.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
21 of 487 truck crashes since 2015.
Deadliest roads
How Marin County compares with California
Marin County against California and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Marin County stands out
Full comparison
| Measure (2015–2025) | Marin County | California | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 16.3 | 33.2 | 49.7 | 51% below the state |
| Deaths per 100 crashes | 4.3 | 3.6 | 3.4 | 1.2× the state |
| Injuries per crash | 0.37 | 0.44 | 0.49 | 16% below the state |
| Garbage-truck share | 4.1% | 1.6% | 2.3% | 2.5× the state |
| On snow, slush or ice | 0.4% | 0.9% | 6.2% | 54% below the state |
| Morning rush (6–10 am) | 31.7% | 23.5% | 23.7% | 1.3× the state |
| In rain, sleet or snow | 8.7% | 6.5% | 13.8% | 1.3× the state |
| Winter months (Nov–Mar) | 43.4% | 40.2% | 41.9% | 1.1× the state |
| After dark | 16.3% | 29.1% | 24.8% | 44% below the state |
Marin County has lower values than California for crashes per 100k residents / yr, injuries per crash and on snow, slush or ice. Where it is higher: deaths per 100 crashes, garbage-truck share and morning rush (6–10 am).
Marin County at a glance: 1 in 24 of truck crashes here involve garbage trucks: 4.1%, vs 1.6% in California.
Overview
Marin County has recorded 487 truck crashes since 2015, with 182 people injured and 20 killed.
Across the years with complete reporting, that is roughly one truck crash every 9 days.
When crashes happen
May has the most truck crashes, 10.1% of the yearly total, while April has the fewest (5.7%).
The five winter months (November to March) hold 43.4% of truck crashes, against 40.2% across California.
The busiest hour is 8–9 am, with 11.7% of truck crashes.
Road surface: 0.4% of truck crashes were on snow, slush or ice (California: 0.9%).
Where crashes happen
The deadliest road for trucks within 10 miles of ZIP 94933 is US-101, with 2 fatal large-truck crashes since 2015. It is followed by 3rd St (1), CR-LUCAS Vly Rd (1) and Fourth St (1).
Garbage & waste trucks
21 crashes involved a garbage or refuse truck, a 4.3% share (California: 1.6%).
The most garbage-truck crashes happen in December (19%).
Route planning tips for ZIP 94933 fleets
- Build extra time into May routes: it has the most truck crashes here.
- Look at alternatives to US-101 at busy times: it leads this area in fatal truck crashes.
- Waste haulers: December is the peak month for garbage-truck crashes in Marin County.
- 31.7% of truck crashes happen between 6 and 10 am, above California; consider earlier or later starts where possible.
- Paste your stops into the free Route Planner to see the risk score, safer alternatives and low bridges.
About the data
This report uses the FMCSA crash file (reported crashes of trucks over 10,000 lb) and NHTSA FARS (fatal crashes). It reports the numbers without guessing at reasons.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in Marin County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-101 | 2 |
| 3rd St | 1 |
| CR-LUCAS Vly Rd | 1 |
| Fourth St | 1 |
| Loma Linda Ave | 1 |
| Los Ranchitos Rd | 1 |
| Point Reyes Petaluma Rd | 1 |
| SR-1 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Marin County) |
|---|---|
| Us-101 S/B | 9 |
| Bel Marin Keys Bl/Nave Dr | 2 |
| Caledonia St/Pine St | 2 |
| Chileno Valley Rd | 2 |
| N. Knoll Rd | 2 |
| Novato Bl/.4Mi W Of Copper Hill Wy | 2 |
| Rt101/.1M S Alameda Del Prado | 2 |
| Rt101/.1M S San Antonio Rd | 2 |
ZIP 94933 at a glance
| Population | 1,033 |
| Density | 124 per sq mi |
| Median household income | $133,006 |
| Median home value | $873,277 |
| Home ownership | 78% |
Waste facilities and haulers nearby
Historical data: truck crashes in Marin County since the 1990s
Combines the FMCSA crash file (all reported truck crashes, real coverage from about 1990) with NHTSA FARS (fatal crashes involving a large truck, 1982–2024).
| Decade | Truck crashes / yr | Change | Fatal crashes / yr (FARS) |
|---|---|---|---|
| 1990s | — | — | 1.2 |
| 2000s | 33 | — | 0.8 |
| 2010s | 43 | +29% | 0.8 |
| 2020s | 38 | -12% | 1.2 |
In the 2000s about 33 truck crashes a year were reported; in the 2020s, about 38. Reporting coverage also changed between these periods. Fatal large-truck crashes: 1.2 a year in 2016–19, 1.2 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 94933
How many truck crashes happen in ZIP 94933?
Marin County has had 487 reported truck crashes since 2015, injuring 182 people and killing 20.
Where do fatal truck crashes happen most in ZIP 94933?
US-101 had 2 fatal crashes involving a large truck within 10 miles of ZIP 94933 since 2015, more than any other road.
When do most truck crashes happen in ZIP 94933?
Truck crashes in Marin County peak in May, with 10.1% of the year's crashes.
How many garbage truck crashes are there in ZIP 94933?
Since 2015, Marin County has reported 21 garbage-truck crashes, or 4.3% of its truck crashes.
How does ZIP 94933 compare with California for truck crashes?
Per 100,000 residents, Marin County has 16.3 truck crashes a year; California has 33.2.
How can I plan a safer truck route in ZIP 94933?
Paste your stops into the free CurbWaste Route Planner: it scores your route against fatal-crash locations, suggests safer alternatives and flags low bridges.
2026 is a partial year. Updated October 2026.