ZIP 93409 (San Luis Obispo, CA) truck route planning & crash data
Plan safer truck routes around ZIP 93409: 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 sits below California on crashes per 100k residents / yr, deaths per 100 crashes and injuries per crash.
The headline for ZIP 93409: US-101 3 fatal truck crashes since 2015, more than any other road within 10 miles of ZIP 93409.
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%).
November through March accounts for 36.1% of truck crashes here, compared with 40.2% in California.
The busiest hour is 7–8 am, with 7.4% of truck crashes.
Road surface: 0.3% of truck crashes were on snow, slush or ice (California: 0.9%).
Where crashes happen
US-101 leads within 10 miles of ZIP 93409 with 3 fatal crashes involving a large truck since 2015. It is followed by Morro Bay Blvd (1), SR-193 (1) and South Higuera St (1).
Garbage & waste trucks
15 crashes involved a garbage or refuse truck, a 1.6% share (California: 1.6%).
Route planning tips for ZIP 93409 fleets
- Plan September schedules with more margin; it is the worst month for truck crashes in San Luis Obispo County.
- Look at alternatives to US-101 at busy times: it leads this area in fatal truck crashes.
- Use the free Route Planner to score your route and spot low bridges before drivers head out.
About the data
This report uses the FMCSA crash file (reported crashes of trucks over 10,000 lb) and NHTSA FARS (fatal crashes). It reports the numbers without guessing at reasons.
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) |
|---|---|
| US-101 | 3 |
| Morro Bay Blvd | 1 |
| SR-193 | 1 |
| South Higuera St | 1 |
| W Pozo Rd | 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 93409 at a glance
| Population | 2,952 |
| Density | 2,852 per sq mi |
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 |
Reported truck crashes averaged 56 a year in the 2000s and 80 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. NHTSA counts 3.2 fatal large-truck crashes a year in 2016–19 and 2.2 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 93409
How common are truck crashes in ZIP 93409?
920 truck crashes have been reported in San Luis Obispo County since 2015, with 30 deaths and 371 injuries.
Which road has the most fatal truck crashes in ZIP 93409?
NHTSA data shows US-101 with 3 fatal large-truck crashes within 10 miles of ZIP 93409 since 2015, the highest of any road.
What is the worst month for truck crashes in ZIP 93409?
The worst month is September: 10.4% of truck crashes in San Luis Obispo County happen then.
How many garbage truck accidents happen in ZIP 93409?
15 crashes involving garbage or refuse trucks have been reported in San Luis Obispo County since 2015, 1.6% of all truck crashes.
What is the truck crash rate in ZIP 93409 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 93409?
Use the free Route Planner: enter your stops to get a risk score, safer alternatives and the low bridges on your route.
2026 is a partial year. Updated October 2026.