San Joaquin County, CA truck route planning & crash data
Plan safer truck routes in San Joaquin County: commercial truck and garbage truck crashes, 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
4.3 deaths per 100 garbage-truck crashes vs 3.7 for all trucks.
Deadliest roads
How San Joaquin County compares with California
San Joaquin County against California and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where San Joaquin County stands out
Full comparison
| Measure (2015–2025) | San Joaquin County | California | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 66.6 | 33.2 | 49.7 | 2.0× the state |
| Deaths per 100 crashes | 3.7 | 3.6 | 3.4 | same |
| Injuries per crash | 0.47 | 0.44 | 0.49 | same |
| Garbage-truck share | 1.1% | 1.6% | 2.3% | 30% below the state |
| On snow, slush or ice | 0.1% | 0.9% | 6.2% | 84% below the state |
| Morning rush (6–10 am) | 24.0% | 23.5% | 23.7% | same |
| In rain, sleet or snow | 5.9% | 6.5% | 13.8% | 10% below the state |
| Winter months (Nov–Mar) | 37.8% | 40.2% | 41.9% | same |
| After dark | 28.3% | 29.1% | 24.8% | same |
Compared with California, San Joaquin County is lower on garbage-truck share, on snow, slush or ice and in rain, sleet or snow. Where it is higher: crashes per 100k residents / yr.
What stands out in San Joaquin County: 0.1% on snowy, slushy or icy roads, against 0.9% across California.
Overview
San Joaquin County has recorded 6,266 truck crashes since 2015, with 3,001 people injured and 228 killed.
That averages about 1 truck crash a day in fully reported years.
When crashes happen
The worst month is August with 9.9% of truck crashes; the quietest is February at 6.8%.
November through March accounts for 37.8% of truck crashes here, compared with 40.2% in California.
By time of day, 7–8 am stands out with 7.1% of truck crashes.
Snow, slush or ice was on the road in 0.1% of truck crashes, compared with 0.9% in California.
Where crashes happen
The deadliest road for trucks in San Joaquin County is I-5, with 28 fatal large-truck crashes since 2015. Next come SR-4 (22), SR-99 (21) and SR-120 (13).
Garbage & waste trucks
75 crashes involved a garbage or refuse truck, a 1.2% share (California: 1.6%).
Garbage-truck crashes peak in October (16% of them).
They recorded 4.3 deaths per 100 crashes, against 3.7 for all trucks.
Route planning tips for San Joaquin County fleets
- Review driver schedules for August, the month with the most truck crashes.
- Where you can, review stops along I-5; it has the most fatal large-truck crashes nearby.
- Waste haulers: October is the peak month for garbage-truck crashes in San Joaquin County.
- 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 Joaquin County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (in San Joaquin County) |
|---|---|
| I-5 | 28 |
| SR-4 | 22 |
| SR-99 | 21 |
| SR-120 | 13 |
| SR-88 | 9 |
| I-205 | 7 |
| SR-12 | 6 |
| Mariposa Rd | 3 |
| SR-132 | 3 |
| Thornton Rd | 3 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (San Joaquin County) |
|---|---|
| Sr-99 S/B | 23 |
| Sr-99 N/B | 21 |
| I-5 | 16 |
| Sr-4 W/B | 14 |
| SR-99 | 12 |
| Sr-120 E/B | 11 |
| SR-4 | 11 |
| SR-12 | 10 |
San Joaquin County at a glance
| Population | 816,108 |
| Land area | 1,392.2 sq mi |
| Density | 586 per sq mi |
| Median household income (ZIP average) | $94,801 |
Waste facilities and haulers nearby
Historical data: truck crashes in San Joaquin 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 | 2 | — | 12.8 |
| 2000s | 315 | +15665% | 12.0 |
| 2010s | 434 | +38% | 11.6 |
| 2020s | 561 | +29% | 19.0 |
In the 1990s about 2 truck crashes a year were reported; in the 2020s, about 561. Reporting coverage also changed between these periods. Fatal large-truck crashes: 14.2 a year in 2016–19, 19.0 a year in 2020–24.
Cities, towns & communities in San Joaquin County
ZIP codes in San Joaquin County
Nearby counties
Questions fleets ask about San Joaquin County
How many truck accidents are there in San Joaquin County?
6,266 truck crashes have been reported in San Joaquin County since 2015, with 228 deaths and 3,001 injuries.
Which road has the most fatal truck crashes in San Joaquin County?
I-5 had 28 fatal crashes involving a large truck in San Joaquin County since 2015, more than any other road.
When do most truck crashes happen in San Joaquin County?
August has the most truck crashes in San Joaquin County, 9.9% of the yearly total.
Are garbage truck crashes common in San Joaquin County?
75 crashes involving garbage or refuse trucks have been reported in San Joaquin County since 2015, 1.2% of all truck crashes.
How do truck crashes in San Joaquin County compare with California?
San Joaquin County records 66.6 truck crashes per 100,000 residents a year, against 33.2 across California.
How can I plan a safer truck route in San Joaquin County?
Paste your stops into the free CurbWaste Route Planner: it scores your route against fatal-crash locations, suggests safer alternatives and flags low bridges.
2026 is a partial year. Updated October 2026.