ZIP 93420 (Arroyo Grande, CA) truck route planning & crash data
Plan safer truck routes around ZIP 93420: commercial truck and garbage truck crashes here and in San Luis Obispo 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
15 of 920 truck crashes since 2015.
Deadliest roads
How San Luis Obispo County compares with California
San Luis Obispo County against California and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where San Luis Obispo County stands out
Full comparison
| Measure (2015–2025) | San Luis Obispo County | California | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 28.4 | 33.2 | 49.7 | 14% below the state |
| Deaths per 100 crashes | 3.3 | 3.6 | 3.4 | 8% below the state |
| Injuries per crash | 0.40 | 0.44 | 0.49 | 9% below the state |
| Garbage-truck share | 1.6% | 1.6% | 2.3% | same |
| On snow, slush or ice | 0.3% | 0.9% | 6.2% | 63% below the state |
| Morning rush (6–10 am) | 24.7% | 23.5% | 23.7% | same |
| In rain, sleet or snow | 5.0% | 6.5% | 13.8% | 23% below the state |
| Winter months (Nov–Mar) | 36.1% | 40.2% | 41.9% | 10% below the state |
| After dark | 24.9% | 29.1% | 24.8% | 15% below the state |
San Luis Obispo County has lower values than California for crashes per 100k residents / yr, deaths per 100 crashes and injuries per crash.
The headline for San Luis Obispo County: 0.3% of truck crashes happened on snow, slush or ice, vs 0.9% in California.
Overview
San Luis Obispo County has recorded 920 truck crashes since 2015, with 371 people injured and 30 killed.
In complete reporting years that works out to about one truck crash every 5 days.
When crashes happen
September has the most truck crashes, 10.4% of the yearly total, while January has the fewest (5.1%).
Winter months (Nov–Mar) carry 36.1% of truck crashes, vs 40.2% for California.
The busiest hour is 7–8 am, with 7.4% of truck crashes.
Snow, slush or ice was on the road in 0.3% of truck crashes, compared with 0.9% in California.
Where crashes happen
Roads with fatal crashes involving a large truck within 10 miles of ZIP 93420 since 2015: Trouville Ave (1) and US-101 (1). No single road stands out.
Garbage & waste trucks
15 crashes involved a garbage or refuse truck, a 1.6% share (California: 1.6%).
Route planning tips for ZIP 93420 fleets
- Review driver schedules for September, the month with the most truck crashes.
- 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 San Luis Obispo County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| Trouville Ave | 1 |
| US-101 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (San Luis Obispo County) |
|---|---|
| US-101 | 15 |
| SR-1 | 8 |
| SR-46E | 5 |
| Rt101/Wellsona Rd | 4 |
| SR-41 | 3 |
| Rt46/4220Ft W Lucy Brown Rd | 3 |
| Rt166/4M E Alamo Creek Rd | 3 |
| Creston Rd | 2 |
ZIP 93420 at a glance
| Population | 31,345 |
| Density | 61 per sq mi |
| Median household income | $110,553 |
| Median home value | $913,706 |
| Home ownership | 66% |
Waste facilities and haulers nearby
Historical data: truck crashes in San Luis Obispo 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 | — | — | 3.2 |
| 2000s | 56 | — | 2.6 |
| 2010s | 72 | +28% | 2.6 |
| 2020s | 80 | +12% | 2.2 |
From the 2000s to the 2020s, yearly reported truck crashes went from 56 to 80. Some of the change may reflect how crashes were reported. Fatal crashes involving a large truck averaged 3.2 a year in 2016–19 and 2.2 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 93420
How common are truck crashes in ZIP 93420?
San Luis Obispo County has had 920 reported truck crashes since 2015, injuring 371 people and killing 30.
When do most truck crashes happen in ZIP 93420?
September has the most truck crashes in San Luis Obispo County, 10.4% of the yearly total.
How many garbage truck accidents happen in ZIP 93420?
Since 2015, San Luis Obispo County has reported 15 garbage-truck crashes, or 1.6% of its truck crashes.
What is the truck crash rate in ZIP 93420 compared with California?
San Luis Obispo County records 28.4 truck crashes per 100,000 residents a year, against 33.2 across California.
How can I plan a safer truck route in ZIP 93420?
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.