ZIP 95306 (Catheys Valley, CA) truck route planning & crash data
Plan safer truck routes around ZIP 95306: commercial truck and garbage truck crashes here and in Mariposa 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
3 of 55 truck crashes since 2015.
Deadliest roads
How Mariposa County compares with California
Mariposa County against California and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Mariposa County stands out
Full comparison
| Measure (2015–2025) | Mariposa County | California | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 26.7 | 33.2 | 49.7 | 20% below the state |
| Deaths per 100 crashes | 6.0 | 3.6 | 3.4 | 1.7× the state |
| Injuries per crash | 0.50 | 0.44 | 0.49 | 1.1× the state |
| Garbage-truck share | 6.0% | 1.6% | 2.3% | 3.7× the state |
| On snow, slush or ice | 6.0% | 0.9% | 6.2% | 6.5× the state |
| Morning rush (6–10 am) | 38.0% | 23.5% | 23.7% | 1.6× the state |
| In rain, sleet or snow | 6.0% | 6.5% | 13.8% | 8% below the state |
| Winter months (Nov–Mar) | 36.0% | 40.2% | 41.9% | 11% below the state |
| After dark | 16.0% | 29.1% | 24.8% | 45% below the state |
Compared with California, Mariposa County is lower on crashes per 100k residents / yr, in rain, sleet or snow and winter months (nov–mar). Where it is higher: deaths per 100 crashes, injuries per crash and garbage-truck share.
What stands out in Mariposa County: 6.0% of truck crashes happened on snow, slush or ice, vs 0.9% in California.
Overview
Mariposa County has recorded 55 truck crashes since 2015, with 29 people injured and 3 killed.
In complete reporting years that works out to about one truck crash every 80 days.
When crashes happen
July has the most truck crashes, 14.5% of the yearly total, while February has the fewest (0.0%).
November through March accounts for 36.0% of truck crashes here, compared with 40.2% in California.
More truck crashes happen at 9–10 am than at any other hour (18.2%).
Snow, slush or ice was on the road in 6.0% 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 95306 since 2015: SR-140 (2). No single road stands out.
Garbage & waste trucks
Garbage and refuse trucks were involved in 3 crashes, 5.5% of the total, against 1.6% across California.
Route planning tips for ZIP 95306 fleets
- Review driver schedules for July, the month with the most truck crashes.
- 38.0% of truck crashes happen between 6 and 10 am, above California; consider earlier or later starts where possible.
- 6.0% of truck crashes were on snow, slush or ice, above California; plan winter equipment checks before the season.
- 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 Mariposa County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| SR-140 | 2 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Mariposa County) |
|---|---|
| SR-140 | 3 |
| Rt49/255Ft S Of Stumpfield Mountain Rd | 2 |
| SR-49 | 2 |
| Bear Valley Rd/78Ft W Hunters Valley Rd | 1 |
| Greeley Hill Rd | 1 |
| Highway 140/450Ft W Martin Rd | 1 |
| Horseshoe Bend Rd/600Ft N Sr132 | 1 |
| Jerseydale Rd/.7M S Wild Dove Ln | 1 |
ZIP 95306 at a glance
| Population | 939 |
| Density | 2 per sq mi |
| Median household income | $81,302 |
| Home ownership | 100% |
Waste facilities and haulers nearby
Historical data: truck crashes in Mariposa 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 | — | — | 0.2 |
| 2000s | 5 | — | 0.1 |
| 2010s | 3 | -34% | 0.5 |
| 2020s | 5 | +52% | 0.2 |
Reported truck crashes averaged 5 a year in the 2000s and 5 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. Fatal crashes involving a large truck averaged 0.8 a year in 2016–19 and 0.2 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 95306
How many truck crashes happen in ZIP 95306?
Mariposa County has had 55 reported truck crashes since 2015, injuring 29 people and killing 3.
What is the worst month for truck crashes in ZIP 95306?
The worst month is July: 14.5% of truck crashes in Mariposa County happen then.
How many garbage truck accidents happen in ZIP 95306?
Garbage trucks were involved in 3 reported crashes in Mariposa County since 2015 (5.5% of truck crashes).
How does ZIP 95306 compare with California for truck crashes?
Mariposa County records 26.7 truck crashes per 100,000 residents a year, against 33.2 across California.
What is the best way to plan truck routes in ZIP 95306?
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.