ZIP 94508 (Angwin, CA) truck route planning & crash data
Plan safer truck routes around ZIP 94508: commercial truck and garbage truck crashes here and in Napa 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
10 of 561 truck crashes since 2015.
Deadliest roads
How Napa County compares with California
Napa County against California and the US, 2015–2024 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Napa County stands out
Full comparison
| Measure (2015–2024) | Napa County | California | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 39.2 | 33.2 | 49.7 | 1.2× the state |
| Deaths per 100 crashes | 3.5 | 3.6 | 3.4 | same |
| Injuries per crash | 0.50 | 0.44 | 0.49 | 1.1× the state |
| Garbage-truck share | 1.9% | 1.6% | 2.3% | 1.2× the state |
| On snow, slush or ice | 0.4% | 0.9% | 6.2% | 59% below the state |
| Morning rush (6–10 am) | 29.8% | 23.5% | 23.7% | 1.3× the state |
| In rain, sleet or snow | 7.5% | 6.5% | 13.8% | 1.2× the state |
| Winter months (Nov–Mar) | 38.3% | 40.2% | 41.9% | same |
| After dark | 12.3% | 29.1% | 24.8% | 58% below the state |
Napa County sits below California on on snow, slush or ice and after dark. It runs above California on crashes per 100k residents / yr, injuries per crash and garbage-truck share.
What stands out in Napa County: 0.4% share of truck crashes on snow, slush or ice (California: 0.9%).
Overview
Napa County has recorded 561 truck crashes since 2015, with 276 people injured and 19 killed.
In complete reporting years that works out to about one truck crash every 7 days.
When crashes happen
October has the most truck crashes, 10.9% of the yearly total, while January has the fewest (6.2%).
The five winter months (November to March) hold 38.3% of truck crashes, against 40.2% across California.
By time of day, 11 am–12 pm stands out with 8.9% of truck crashes.
0.4% of truck crashes here happened on snow, slush or ice, against 0.9% across California.
Where crashes happen
Roads with fatal crashes involving a large truck within 10 miles of ZIP 94508 since 2015: SR-128 (2), SR-29 (2), Petrified Forest Rd (1) and Silverado Trl (1). No single road stands out.
Garbage & waste trucks
Garbage and refuse trucks were involved in 10 crashes, 1.8% of the total, against 1.6% across California.
Route planning tips for ZIP 94508 fleets
- Plan October schedules with more margin; it is the worst month for truck crashes in Napa County.
- The morning rush (6–10 am) holds 29.8% of truck crashes here, more than California; adjust start times where you can.
- 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.
Crash reporting for 2025 is incomplete; those years are shown in grey and not used for rates.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in Napa County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| SR-128 | 2 |
| SR-29 | 2 |
| Petrified Forest Rd | 1 |
| Silverado Trl | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Napa County) |
|---|---|
| SR-29 | 12 |
| Rt128/Petrified Forest Rd | 5 |
| Rt29/Deer Park Rd | 3 |
| Rt12/Rt29 | 3 |
| Big Ranch Rd/662Ft N Salvador Av | 2 |
| Broadway/Eucalyptus Dr | 2 |
| Broadway/Green Island Rd | 2 |
| Broadway/Paoli Loop Rd | 2 |
ZIP 94508 at a glance
| Population | 3,495 |
| Density | 84 per sq mi |
| Median household income | $116,667 |
| Median home value | $778,276 |
| Home ownership | 62% |
Waste facilities and haulers nearby
Historical data: truck crashes in Napa 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 | — | — | 1.7 |
| 2000s | 32 | — | 1.2 |
| 2010s | 45 | +41% | 1.3 |
| 2020s | 52 | +16% | 1.8 |
Reported truck crashes averaged 32 a year in the 2000s and 52 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. Fatal large-truck crashes: 1.5 a year in 2016–19, 1.8 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 94508
How many truck accidents are there in ZIP 94508?
Since 2015, 561 crashes involving commercial trucks were reported in Napa County (276 injured, 19 killed).
What is the worst month for truck crashes in ZIP 94508?
Truck crashes in Napa County peak in October, with 10.9% of the year's crashes.
How many garbage truck accidents happen in ZIP 94508?
Since 2015, Napa County has reported 10 garbage-truck crashes, or 1.8% of its truck crashes.
How do truck crashes in ZIP 94508 compare with California?
The yearly rate is 39.2 truck crashes per 100,000 residents in Napa County, vs 33.2 for California.
How can I plan a safer truck route in ZIP 94508?
Paste your stops into the free CurbWaste Route Planner: it scores your route against fatal-crash locations, suggests safer alternatives and flags low bridges.
Crash reporting to FMCSA was incomplete in 2025; those years are greyed out and left out of rates. 2026 is a partial year. Updated October 2026.