ZIP 94020 (La Honda, CA) truck route planning & crash data
Plan safer truck routes around ZIP 94020: commercial truck and garbage truck crashes here and in San Mateo 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
7.5 deaths per 100 garbage-truck crashes vs 2.7 for all trucks.
Deadliest roads
How San Mateo County compares with California
San Mateo County against California and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where San Mateo County stands out
Full comparison
| Measure (2015–2025) | San Mateo County | California | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 15.7 | 33.2 | 49.7 | 53% below the state |
| Deaths per 100 crashes | 2.7 | 3.6 | 3.4 | 25% below the state |
| Injuries per crash | 0.47 | 0.44 | 0.49 | same |
| Garbage-truck share | 3.1% | 1.6% | 2.3% | 1.9× the state |
| On snow, slush or ice | 0.0% | 0.9% | 6.2% | 100% below the state |
| Morning rush (6–10 am) | 28.0% | 23.5% | 23.7% | 1.2× the state |
| In rain, sleet or snow | 6.6% | 6.5% | 13.8% | same |
| Winter months (Nov–Mar) | 39.0% | 40.2% | 41.9% | same |
| After dark | 22.3% | 29.1% | 24.8% | 23% below the state |
Compared with California, San Mateo County is lower on crashes per 100k residents / yr, deaths per 100 crashes and on snow, slush or ice. It stands out for higher garbage-truck share and morning rush (6–10 am).
San Mateo County at a glance: 1 in 32 garbage-truck share of crashes is 3.1%, against 1.6% for California.
Overview
Police reported 1,319 crashes involving commercial trucks in San Mateo County since 2015: 630 people were injured and 36 were killed.
Across the years with complete reporting, that is roughly one truck crash every 3 days.
When crashes happen
The worst month is June with 10.8% of truck crashes; the quietest is May at 6.7%.
The five winter months (November to March) hold 39.0% of truck crashes, against 40.2% across California.
More truck crashes happen at 8–9 am than at any other hour (8.4%).
Snow, slush or ice was on the road in 0.0% of truck crashes, compared with 0.9% in California.
Where crashes happen
Since 2015, fatal crashes with a large truck within 10 miles of ZIP 94020 happened on Black Mountain Rd (1), SR-84 (1) and Sand Hill Road (1); no road leads clearly.
Garbage & waste trucks
Garbage and refuse trucks were involved in 40 crashes, 3.0% of the total, against 1.6% across California.
Garbage-truck crashes peak in September (18% of them).
They recorded 7.5 deaths per 100 crashes, against 2.7 for all trucks.
Route planning tips for ZIP 94020 fleets
- Review driver schedules for June, the month with the most truck crashes.
- For residential and commercial waste routes, look again at September schedules: garbage-truck crashes peak then.
- The morning rush (6–10 am) holds 28.0% of truck crashes here, more than California; adjust start times where you can.
- 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 Mateo County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| Black Mountain Rd | 1 |
| SR-84 | 1 |
| Sand Hill Road | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (San Mateo County) |
|---|---|
| Us-101 N/B | 15 |
| Us-101 S/B | 9 |
| Rt92/.3M E Rt35 | 4 |
| Rt92/3.6M E Foster City Bl | 4 |
| Sr-92 E/B | 4 |
| Woodside Rd/Broadway | 3 |
| SR-1 | 3 |
| Rt92/100Ft W Pilarcitos Creek Rd | 3 |
ZIP 94020 at a glance
| Population | 1,694 |
| Density | 16 per sq mi |
| Median household income | $250,001 |
| Median home value | $1,003,026 |
| Home ownership | 70% |
Waste facilities and haulers nearby
Historical data: truck crashes in San Mateo 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 | — | — | 2.8 |
| 2000s | 77 | — | 2.2 |
| 2010s | 115 | +49% | 2.2 |
| 2020s | 102 | -11% | 2.2 |
From the 2000s to the 2020s, yearly reported truck crashes went from 77 to 102. Some of the change may reflect how crashes were reported. NHTSA counts 3.8 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 94020
How many truck accidents are there in ZIP 94020?
1,319 truck crashes have been reported in San Mateo County since 2015, with 36 deaths and 630 injuries.
What is the worst month for truck crashes in ZIP 94020?
The worst month is June: 10.8% of truck crashes in San Mateo County happen then.
How many garbage truck crashes are there in ZIP 94020?
Since 2015, San Mateo County has reported 40 garbage-truck crashes, or 3.0% of its truck crashes.
How do truck crashes in ZIP 94020 compare with California?
Per 100,000 residents, San Mateo County has 15.7 truck crashes a year; California has 33.2.
How do I plan a garbage truck route in ZIP 94020?
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.