ZIP 94027 (Atherton, CA) truck route planning & crash data
Plan safer truck routes around ZIP 94027: 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 |
San Mateo County sits below California on crashes per 100k residents / yr, deaths per 100 crashes and on snow, slush or ice. It runs above California on garbage-truck share and morning rush (6–10 am).
The headline for San Mateo County: 1 in 32 of truck crashes here involve garbage trucks: 3.1%, vs 1.6% in California.
Overview
San Mateo County has recorded 1,319 truck crashes since 2015, with 630 people injured and 36 killed.
In complete reporting years that works out to about one truck crash every 3 days.
When crashes happen
Truck crashes peak in June (10.8% of the year) and are lowest in May (6.7%).
November through March accounts for 39.0% of truck crashes here, compared with 40.2% in California.
More truck crashes happen at 8–9 am than at any other hour (8.4%).
Road surface: 0.0% of truck crashes were on snow, slush or ice (California: 0.9%).
Where crashes happen
The deadliest road for trucks within 10 miles of ZIP 94027 is US-101, with 8 fatal large-truck crashes since 2015. It is followed by SR-84 (3), Black Mountain Rd (1) and Broadway St (1).
Garbage & waste trucks
40 crashes involved a garbage or refuse truck, a 3.0% share (California: 1.6%).
The most garbage-truck crashes happen in September (18%).
Deaths per 100 garbage-truck crashes: 7.5, vs 2.7 for all truck crashes.
Route planning tips for ZIP 94027 fleets
- Review driver schedules for June, the month with the most truck crashes.
- Where you can, review stops along US-101; it has the most fatal large-truck crashes nearby.
- Garbage-truck crashes here peak in September; review collection routes for that month.
- Morning starts matter: 28.0% of truck crashes fall between 6 and 10 am, higher than California.
- Use the free Route Planner to score your route and spot low bridges before drivers head out.
About the data
Crash counts come from the FMCSA crash file (police-reported crashes involving trucks over 10,000 lb); fatal-crash locations come from NHTSA FARS. Text on this page states only what these numbers show.
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) |
|---|---|
| US-101 | 8 |
| SR-84 | 3 |
| Black Mountain Rd | 1 |
| Broadway St | 1 |
| Canada Rd | 1 |
| Crestview Dr | 1 |
| Grant Rd | 1 |
| I-280 | 1 |
| Pulgas Av | 1 |
| SR-82 | 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 94027 at a glance
| Population | 7,002 |
| Density | 538 per sq mi |
| Median household income | $250,001 |
| Median home value | $2,000,001 |
| Home ownership | 88% |
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 |
Reported truck crashes averaged 77 a year in the 2000s and 102 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. Fatal large-truck crashes: 3.8 a year in 2016–19, 2.2 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 94027
How common are truck crashes in ZIP 94027?
Since 2015, 1,319 crashes involving commercial trucks were reported in San Mateo County (630 injured, 36 killed).
Where do fatal truck crashes happen most in ZIP 94027?
Since 2015, US-101 has had the most fatal large-truck crashes within 10 miles of ZIP 94027: 8.
What is the worst month for truck crashes in ZIP 94027?
June has the most truck crashes in San Mateo County, 10.8% of the yearly total.
How many garbage truck crashes are there in ZIP 94027?
40 crashes involving garbage or refuse trucks have been reported in San Mateo County since 2015, 3.0% of all truck crashes.
How does ZIP 94027 compare with California for truck crashes?
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 94027?
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.