San Geronimo, CA truck route planning & crash data
Plan safer truck routes in San Geronimo: commercial truck and garbage truck crashes in San Geronimo and Marin County, dangerous roads, seasonality and route safety data for fleets. Patterns use Marin County numbers.
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 crashes involve a garbage truck (21 since 2015), vs 1.6% across California.
Overview
Since 2015, 487 crashes involving commercial trucks have been reported in Marin County. They injured 182 people and killed 20.
In complete reporting years that works out to about one truck crash every 9 days.
With 0 truck crashes reported in San Geronimo since 2015, this page uses Marin County numbers for its patterns and comparisons.
When crashes happen
The worst month is May with 10.1% of truck crashes; the quietest is April at 5.7%.
November through March accounts for 43.4% of truck crashes here, compared with 40.2% in California.
The busiest hour is 8–9 am, with 11.7% of truck crashes.
0.4% of truck crashes here happened on snow, slush or ice, against 0.9% across California.
Where crashes happen
The deadliest road for trucks within 10 miles of San Geronimo is US-101, with 2 fatal large-truck crashes since 2015. After it: 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 San Geronimo fleets
- Review driver schedules for May, the month with the most truck crashes.
- Check whether your routes use US-101, the road with the most fatal truck crashes in this area.
- Garbage-truck crashes here peak in December; review collection routes for that month.
- Morning starts matter: 31.7% of truck crashes fall between 6 and 10 am, higher than California.
- Paste your stops into the free Route Planner to see the risk score, safer alternatives and low bridges.
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) |
|---|---|
| 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 |
San Geronimo at a glance
| Land area | 1.5 sq mi |
| Median household income (ZIP 94963) | $210,823 |
| Median home value (ZIP 94963) | $1,097,194 |
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. NHTSA counts 1.2 fatal large-truck crashes a year in 2016–19 and 1.2 a year in 2020–24.
Nearby places
Questions fleets ask about San Geronimo
How common are truck crashes in San Geronimo?
Since 2015, 487 crashes involving commercial trucks were reported in Marin County (182 injured, 20 killed).
What is the most dangerous road for trucks in San Geronimo?
Since 2015, US-101 has had the most fatal large-truck crashes within 10 miles of San Geronimo: 2.
Which month has the most truck crashes in San Geronimo?
Truck crashes in Marin County peak in May, with 10.1% of the year's crashes.
Are garbage truck crashes common in San Geronimo?
21 crashes involving garbage or refuse trucks have been reported in Marin County since 2015, 4.3% of all truck crashes.
How do truck crashes in San Geronimo 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 San Geronimo?
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.