ZIP 94939 (Larkspur, CA) truck route planning & crash data
Plan safer truck routes around ZIP 94939: 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
Since 2015, 487 crashes involving commercial trucks have been reported in Marin County. They injured 182 people and killed 20.
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%).
November through March accounts for 43.4% of truck crashes here, compared with 40.2% in California.
By time of day, 8–9 am stands out 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
Fatal large-truck crashes within 10 miles of ZIP 94939 since 2015 were spread across roads: I-580 (2), US-101 (2), 3rd St (1), CR-LUCAS Vly Rd (1) and Cutting Blvd (1).
Garbage & waste trucks
Garbage and refuse trucks were involved in 21 crashes, 4.3% of the total, against 1.6% across California.
The most garbage-truck crashes happen in December (19%).
Route planning tips for ZIP 94939 fleets
- Plan May schedules with more margin; it is the worst month for truck crashes in Marin County.
- For residential and commercial waste routes, look again at December schedules: garbage-truck crashes peak then.
- Morning starts matter: 31.7% of truck crashes fall between 6 and 10 am, higher than California.
- Use the free Route Planner to score your route and spot low bridges before drivers head out.
About the data
Sources: the FMCSA crash file for all reported truck crashes and NHTSA FARS for fatal crashes with a large truck. Every statement here comes straight from those numbers.
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) |
|---|---|
| I-580 | 2 |
| US-101 | 2 |
| 3rd St | 1 |
| CR-LUCAS Vly Rd | 1 |
| Cutting Blvd | 1 |
| Fourth St | 1 |
| Giant Rd | 1 |
| I-80 | 1 |
| Loma Linda Ave | 1 |
| Los Ranchitos Rd | 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 94939 at a glance
| Population | 7,315 |
| Density | 1,197 per sq mi |
| Median household income | $203,988 |
| Median home value | $1,968,506 |
| Home ownership | 50% |
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 |
From the 2000s to the 2020s, yearly reported truck crashes went from 33 to 38. Some of the change may reflect how crashes were reported. 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 94939
How many truck accidents are there in ZIP 94939?
Since 2015, 487 crashes involving commercial trucks were reported in Marin County (182 injured, 20 killed).
Which month has the most truck crashes in ZIP 94939?
The worst month is May: 10.1% of truck crashes in Marin County happen then.
How many garbage truck accidents happen in ZIP 94939?
Since 2015, Marin County has reported 21 garbage-truck crashes, or 4.3% of its truck crashes.
How do truck crashes in ZIP 94939 compare with California?
The yearly rate is 16.3 truck crashes per 100,000 residents in Marin County, vs 33.2 for California.
How can I plan a safer truck route in ZIP 94939?
Use the free Route Planner: enter your stops to get a risk score, safer alternatives and the low bridges on your route.
2026 is a partial year. Updated October 2026.