ZIP 94583 (San Ramon, CA) truck route planning & crash data
Plan safer truck routes around ZIP 94583: commercial truck and garbage truck crashes here and in Contra Costa 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
3.3 deaths per 100 garbage-truck crashes vs 3.1 for all trucks.
Deadliest roads
How Contra Costa County compares with California
Contra Costa County against California and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Contra Costa County stands out
Full comparison
| Measure (2015–2025) | Contra Costa County | California | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 17.7 | 33.2 | 49.7 | 47% below the state |
| Deaths per 100 crashes | 3.1 | 3.6 | 3.4 | 14% below the state |
| Injuries per crash | 0.48 | 0.44 | 0.49 | 1.1× the state |
| Garbage-truck share | 2.6% | 1.6% | 2.3% | 1.6× the state |
| On snow, slush or ice | 0.1% | 0.9% | 6.2% | 86% below the state |
| Morning rush (6–10 am) | 26.3% | 23.5% | 23.7% | 1.1× the state |
| In rain, sleet or snow | 7.3% | 6.5% | 13.8% | 1.1× the state |
| Winter months (Nov–Mar) | 40.8% | 40.2% | 41.9% | same |
| After dark | 27.3% | 29.1% | 24.8% | same |
Compared with California, Contra Costa County is lower on crashes per 100k residents / yr, deaths per 100 crashes and on snow, slush or ice. It runs above California on injuries per crash, garbage-truck share and morning rush (6–10 am).
The headline for Contra Costa County: 1 in 38 of truck crashes here involve garbage trucks: 2.6%, vs 1.6% in California.
Overview
Since 2015, 2,377 crashes involving commercial trucks have been reported in Contra Costa County. They injured 1,171 people and killed 73.
In complete reporting years that works out to about one truck crash every 2 days.
When crashes happen
August has the most truck crashes, 10.1% of the yearly total, while November has the fewest (7.3%).
November through March accounts for 40.8% of truck crashes here, compared with 40.2% in California.
More truck crashes happen at 8–9 am than at any other hour (7.8%).
0.1% of truck crashes here happened on snow, slush or ice, against 0.9% across California.
Where crashes happen
I-680 leads within 10 miles of ZIP 94583 with 8 fatal crashes involving a large truck since 2015. It is followed by I-580 (7), I-880 (2) and Harder Rd (1).
Garbage & waste trucks
60 crashes involved a garbage or refuse truck, a 2.5% share (California: 1.6%).
Garbage-truck crashes peak in February (15% of them).
They recorded 3.3 deaths per 100 crashes, against 3.1 for all trucks.
Route planning tips for ZIP 94583 fleets
- Plan August schedules with more margin; it is the worst month for truck crashes in Contra Costa County.
- Look at alternatives to I-680 at busy times: it leads this area in fatal truck crashes.
- For residential and commercial waste routes, look again at February schedules: garbage-truck crashes peak then.
- The morning rush (6–10 am) holds 26.3% of truck crashes here, more than California; adjust start times where you can.
- Check your own stops for crash hotspots and low bridges with the free Route Planner.
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 Contra Costa County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-680 | 8 |
| I-580 | 7 |
| I-880 | 2 |
| Harder Rd | 1 |
| Hesperian Blvd | 1 |
| Merriewood Dr | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Contra Costa County) |
|---|---|
| SR-4 | 21 |
| I-680 | 14 |
| Sr-4 W/B | 8 |
| Sr-4 E/B | 5 |
| Richmond Pkwy/Pittsburg Av | 5 |
| Clayton Rd | 4 |
| I-80 | 4 |
| Sr160 Sb/1500Ft N Wilbur Av | 3 |
ZIP 94583 at a glance
| Population | 39,583 |
| Density | 720 per sq mi |
| Median household income | $184,898 |
| Median home value | $1,395,752 |
| Home ownership | 72% |
Waste facilities and haulers nearby
Historical data: truck crashes in Contra Costa 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 | — | — | 4.8 |
| 2000s | 123 | — | 4.4 |
| 2010s | 176 | +43% | 3.7 |
| 2020s | 207 | +17% | 6.2 |
In the 2000s about 123 truck crashes a year were reported; in the 2020s, about 207. Reporting coverage also changed between these periods. Fatal crashes involving a large truck averaged 5.8 a year in 2016–19 and 6.2 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 94583
How many truck accidents are there in ZIP 94583?
Contra Costa County has had 2,377 reported truck crashes since 2015, injuring 1,171 people and killing 73.
Where do fatal truck crashes happen most in ZIP 94583?
NHTSA data shows I-680 with 8 fatal large-truck crashes within 10 miles of ZIP 94583 since 2015, the highest of any road.
Which month has the most truck crashes in ZIP 94583?
Truck crashes in Contra Costa County peak in August, with 10.1% of the year's crashes.
Are garbage truck crashes common in ZIP 94583?
Garbage trucks were involved in 60 reported crashes in Contra Costa County since 2015 (2.5% of truck crashes).
How does ZIP 94583 compare with California for truck crashes?
Per 100,000 residents, Contra Costa County has 17.7 truck crashes a year; California has 33.2.
What is the best way to plan truck routes in ZIP 94583?
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.