ZIP 94523 (Pleasant Hill, CA) truck route planning & crash data
Plan safer truck routes around ZIP 94523: 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 |
Contra Costa County sits below California on crashes per 100k residents / yr, deaths per 100 crashes and on snow, slush or ice. It stands out for higher injuries per crash, garbage-truck share and morning rush (6–10 am).
Contra Costa County at a glance: 1 in 38 garbage-truck share of crashes is 2.6%, against 1.6% for California.
Overview
Police reported 2,377 crashes involving commercial trucks in Contra Costa County since 2015: 1,171 people were injured and 73 were killed.
That averages about one truck crash every 2 days in fully reported years.
When crashes happen
The worst month is August with 10.1% of truck crashes; the quietest is November at 7.3%.
The five winter months (November to March) hold 40.8% of truck crashes, against 40.2% across 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
The deadliest road for trucks within 10 miles of ZIP 94523 is I-680, with 7 fatal large-truck crashes since 2015. After it: SR-4 (3), Clayton Rd (1) and Merriewood Dr (1).
Garbage & waste trucks
60 crashes involved a garbage or refuse truck, a 2.5% share (California: 1.6%).
The most garbage-truck crashes happen in February (15%).
Deaths per 100 garbage-truck crashes: 3.3, vs 3.1 for all truck crashes.
Route planning tips for ZIP 94523 fleets
- Review driver schedules for August, the month with the most truck crashes.
- Where you can, review stops along I-680; it has the most fatal large-truck crashes nearby.
- Waste haulers: February is the peak month for garbage-truck crashes in Contra Costa County.
- 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 | 7 |
| SR-4 | 3 |
| Clayton Rd | 1 |
| Merriewood Dr | 1 |
| Pacheco Blvd | 1 |
| Port Chicago Hwy | 1 |
| Reliez Valley Rd | 1 |
| SR-24 | 1 |
| SR-242 | 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 94523 at a glance
| Population | 34,592 |
| Density | 1,854 per sq mi |
| Median household income | $142,586 |
| Median home value | $1,077,196 |
| Home ownership | 62% |
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 |
From the 2000s to the 2020s, yearly reported truck crashes went from 123 to 207. Some of the change may reflect how crashes were reported. NHTSA counts 5.8 fatal large-truck crashes a year in 2016–19 and 6.2 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 94523
How common are truck crashes in ZIP 94523?
Contra Costa County has had 2,377 reported truck crashes since 2015, injuring 1,171 people and killing 73.
What is the most dangerous road for trucks in ZIP 94523?
I-680 had 7 fatal crashes involving a large truck within 10 miles of ZIP 94523 since 2015, more than any other road.
Which month has the most truck crashes in ZIP 94523?
August has the most truck crashes in Contra Costa County, 10.1% of the yearly total.
Are garbage truck crashes common in ZIP 94523?
Garbage trucks were involved in 60 reported crashes in Contra Costa County since 2015 (2.5% of truck crashes).
How do truck crashes in ZIP 94523 compare with California?
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 94523?
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.