ZIP 94599 (Yountville, CA) truck route planning & crash data
Plan safer truck routes around ZIP 94599: 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 has lower values than California for on snow, slush or ice and after dark. It stands out for higher crashes per 100k residents / yr, injuries per crash and garbage-truck share.
What stands out in Napa County: 0.4% of truck crashes happened on snow, slush or ice, vs 0.9% in California.
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
Truck crashes peak in October (10.9% of the year) and are lowest in January (6.2%).
The five winter months (November to March) hold 38.3% of truck crashes, against 40.2% across California.
More truck crashes happen at 11 am–12 pm than at any other hour (8.9%).
0.4% of truck crashes here happened on snow, slush or ice, against 0.9% across California.
Where crashes happen
Since 2015, fatal crashes with a large truck within 10 miles of ZIP 94599 happened on SR-29 (2), Silverado Trl (2), Buhman Ave (1), Napa Rd (1) and Oakville Grade Rd (1); no road leads clearly.
Garbage & waste trucks
Garbage trucks account for 10 of the truck crashes here, or 1.8%, compared with 1.6% in California.
Route planning tips for ZIP 94599 fleets
- Review driver schedules for October, the month with the most truck crashes.
- 29.8% of truck crashes happen between 6 and 10 am, above California; consider earlier or later starts where possible.
- 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.
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-29 | 2 |
| Silverado Trl | 2 |
| Buhman Ave | 1 |
| Napa Rd | 1 |
| Oakville Grade Rd | 1 |
| SR-12 | 1 |
| SR-128 | 1 |
| Siverado Trail | 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 94599 at a glance
| Population | 3,348 |
| Density | 163 per sq mi |
| Median household income | $80,372 |
| Median home value | $684,735 |
| Home ownership | 68% |
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 94599
How many truck accidents are there in ZIP 94599?
561 truck crashes have been reported in Napa County since 2015, with 19 deaths and 276 injuries.
Which month has the most truck crashes in ZIP 94599?
The worst month is October: 10.9% of truck crashes in Napa County happen then.
How many garbage truck accidents happen in ZIP 94599?
Garbage trucks were involved in 10 reported crashes in Napa County since 2015 (1.8% of truck crashes).
How does ZIP 94599 compare with California for truck crashes?
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 94599?
The free Route Planner takes your stops and returns a route risk score, safer alternatives and low-bridge warnings.
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.