ZIP 94503 (American Canyon, CA) truck route planning & crash data
Plan safer truck routes around ZIP 94503: 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 runs above California on crashes per 100k residents / yr, injuries per crash and garbage-truck share.
The headline for ZIP 94503: I-80 6 fatal truck crashes since 2015, more than any other road within 10 miles of ZIP 94503.
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
The worst month is October with 10.9% of truck crashes; the quietest is January at 6.2%.
Winter months (Nov–Mar) carry 38.3% of truck crashes, vs 40.2% for California.
The busiest hour is 11 am–12 pm, with 8.9% of truck crashes.
Snow, slush or ice was on the road in 0.4% of truck crashes, compared with 0.9% in California.
Where crashes happen
Within this area, I-80 had the most fatal crashes involving a large truck since 2015 (6). After it: SR-29 (3), Lake Herman Rd (2) and SR-221 (2).
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 94503 fleets
- Plan October schedules with more margin; it is the worst month for truck crashes in Napa County.
- Look at alternatives to I-80 at busy times: it leads this area in fatal truck crashes.
- 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.
Reporting to FMCSA was incomplete in 2025; rates and comparisons skip those years.
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) |
|---|---|
| I-80 | 6 |
| SR-29 | 3 |
| Lake Herman Rd | 2 |
| SR-221 | 2 |
| Central Wy | 1 |
| I-680 | 1 |
| SR-121 | 1 |
| SR-37 | 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 94503 at a glance
| Population | 21,841 |
| Density | 312 per sq mi |
| Median household income | $121,088 |
| Median home value | $691,203 |
| Home ownership | 74% |
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 |
In the 2000s about 32 truck crashes a year were reported; in the 2020s, about 52. Reporting coverage also changed between these periods. 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 94503
How many truck crashes happen in ZIP 94503?
561 truck crashes have been reported in Napa County since 2015, with 19 deaths and 276 injuries.
Which road has the most fatal truck crashes in ZIP 94503?
NHTSA data shows I-80 with 6 fatal large-truck crashes within 10 miles of ZIP 94503 since 2015, the highest of any road.
When do most truck crashes happen in ZIP 94503?
Truck crashes in Napa County peak in October, with 10.9% of the year's crashes.
Are garbage truck crashes common in ZIP 94503?
Garbage trucks were involved in 10 reported crashes in Napa County since 2015 (1.8% of truck crashes).
How do truck crashes in ZIP 94503 compare with California?
Napa County records 39.2 truck crashes per 100,000 residents a year, against 33.2 across California.
How do I plan a garbage truck route in ZIP 94503?
Use the free Route Planner: enter your stops to get a risk score, safer alternatives and the low bridges on your route.
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.