ZIP 95421 (Cazadero, CA) truck route planning & crash data
Plan safer truck routes around ZIP 95421: commercial truck and garbage truck crashes here and in Sonoma 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
6.2 deaths per 100 garbage-truck crashes vs 3.0 for all trucks.
Deadliest roads
How Sonoma County compares with California
Sonoma County against California and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Sonoma County stands out
Full comparison
| Measure (2015–2025) | Sonoma County | California | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 27.0 | 33.2 | 49.7 | 19% below the state |
| Deaths per 100 crashes | 3.0 | 3.6 | 3.4 | 17% below the state |
| Injuries per crash | 0.50 | 0.44 | 0.49 | 1.1× the state |
| Garbage-truck share | 3.3% | 1.6% | 2.3% | 2.0× the state |
| On snow, slush or ice | 0.4% | 0.9% | 6.2% | 62% below the state |
| Morning rush (6–10 am) | 28.5% | 23.5% | 23.7% | 1.2× the state |
| In rain, sleet or snow | 8.7% | 6.5% | 13.8% | 1.3× the state |
| Winter months (Nov–Mar) | 38.1% | 40.2% | 41.9% | same |
| After dark | 17.6% | 29.1% | 24.8% | 40% below the state |
Sonoma County has lower values than California for crashes per 100k residents / yr, deaths per 100 crashes and on snow, slush or ice. It stands out for higher injuries per crash, garbage-truck share and morning rush (6–10 am).
The headline for Sonoma County: 1 in 30 garbage-truck share of crashes is 3.3%, against 1.6% for California.
Overview
Since 2015, 1,502 crashes involving commercial trucks have been reported in Sonoma County. They injured 778 people and killed 43.
Across the years with complete reporting, that is roughly one truck crash every 3 days.
When crashes happen
Truck crashes peak in October (10.5% of the year) and are lowest in April (7.4%).
November through March accounts for 38.1% of truck crashes here, compared with 40.2% in California.
By time of day, 8–9 am stands out with 8.8% 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 95421 since 2015 were spread across roads: SR-1 (1).
Garbage & waste trucks
Garbage trucks account for 50 of the truck crashes here, or 3.3%, compared with 1.6% in California.
Their busiest month is March, with 18% of garbage-truck crashes.
Per 100 crashes, garbage trucks recorded 6.2 deaths compared with 3.0 for all trucks.
Route planning tips for ZIP 95421 fleets
- Plan October schedules with more margin; it is the worst month for truck crashes in Sonoma County.
- Garbage-truck crashes here peak in March; review collection routes for that month.
- Morning starts matter: 28.5% 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
Crash counts come from the FMCSA crash file (police-reported crashes involving trucks over 10,000 lb); fatal-crash locations come from NHTSA FARS. Text on this page states only what these numbers show.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in Sonoma County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| SR-1 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Sonoma County) |
|---|---|
| Us-101 S/B | 10 |
| US-101 | 8 |
| Lakeville Road | 5 |
| Us-101 N/B | 4 |
| SR-37 | 3 |
| SR-116 | 3 |
| Rt116/Green Valley Rd | 3 |
| Rt101/300Ft N Steele Ln | 3 |
ZIP 95421 at a glance
| Population | 1,570 |
| Density | 4 per sq mi |
| Median household income | $78,906 |
| Median home value | $639,757 |
| Home ownership | 79% |
Waste facilities and haulers nearby
Historical data: truck crashes in Sonoma 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 | — | 4.5 |
| 2000s | 72 | +7070% | 3.0 |
| 2010s | 122 | +69% | 3.1 |
| 2020s | 119 | -2% | 2.8 |
In the 1990s about 1 truck crash a year were reported; in the 2020s, about 119. Reporting coverage also changed between these periods. NHTSA counts 4.5 fatal large-truck crashes a year in 2016–19 and 2.8 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 95421
How many truck accidents are there in ZIP 95421?
Since 2015, 1,502 crashes involving commercial trucks were reported in Sonoma County (778 injured, 43 killed).
When do most truck crashes happen in ZIP 95421?
October has the most truck crashes in Sonoma County, 10.5% of the yearly total.
Are garbage truck crashes common in ZIP 95421?
Since 2015, Sonoma County has reported 50 garbage-truck crashes, or 3.3% of its truck crashes.
How do truck crashes in ZIP 95421 compare with California?
The yearly rate is 27.0 truck crashes per 100,000 residents in Sonoma County, vs 33.2 for California.
How can I plan a safer truck route in ZIP 95421?
The free Route Planner takes your stops and returns a route risk score, safer alternatives and low-bridge warnings.
2026 is a partial year. Updated October 2026.