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Traffic | vehicles per day11,938 |
|---|---|
Trucks | 6.1% |
Average travel time | 30.6 min |
Congestion ratio | 31.6% |
Drivers’ average age | 45.6 yrs |
Drivers’ average income | $143,225 |
Our data shows 11,938 vehicles per day on the average road in Contra Costa County, California, and 25,822,583 vehicle-miles traveled per day (≈9.4 billion per year) across its 1,406 miles of monitored roads. Trucks are a smaller part of the mix than across California: 6.1% against 7.8%.
At 11,938 vehicles per day, the average road in Contra Costa carries somewhat less traffic than the state average of 12,766 (6% less). Network-wide, Contra Costa accounts for about 2.8% of California's statewide total of vehicle-miles. Contra Costa carries more traffic than 86% of counties in California.
At 30.6 minutes, the average travel time is 11% lower than the state level. On travel time, Contra Costa runs shorter than 95% of counties in California.
The congestion ratio of 31.6% is 15% higher, pointing to more pronounced congestion than the state level - relevant for traffic control and delivery planning.
| Traffic | vehicles per day46,341 |
|---|---|
| Trucks | 7.6% |
| Average travel time | 39.3 min |
| Congestion ratio | 71.7% |
| Drivers’ average age | 45.4 yrs |
| Drivers’ average income | $138,483 |
A little more than half of the driving in Contra Costa County, California happens on highways: 58% of all vehicle-miles. The average highway carries 46,341 vehicles per day, 360% more than the average non-highway road in the same area, which carries 10,071 vehicles per day.
With 19% of the road miles (274 miles in 1,752 segments), highways punch above their length, carrying 15,002,388 vehicle-miles traveled per day (≈5.5 billion per year).
84% of counties in California move less traffic on their highways.
The concentration of trucks on highways (7.6%) is 26% lower than the state average for similar road classifications. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.
Contra Costa's highway truck share (7.6%) is lower than 86% of counties in California. 76% of counties in California see fewer highway trucks per day than Contra Costa's roughly 3,540.
| Traffic | vehicles per day10,071 |
|---|---|
| Trucks | 4.0% |
| Average travel time | 30.1 min |
| Congestion ratio | 29.4% |
| Drivers’ average age | 45.9 yrs |
| Drivers’ average income | $148,303 |
Local roads carry a significant share of travel in Contra Costa County, California: 42% of all vehicle-miles. On the average non-highway road, that comes to 10,071 vehicles per day.
Spread over 1,132 miles and 32,291 segments, 81% of the road network, local roads carry a lighter load per mile: 10,820,194 vehicle-miles traveled per day (≈3.9 billion per year). Trucks make up 4.0% of non-highway traffic, about 1 in 25 vehicles.
The concentration of trucks on non-highway roads is 47% lower than on highways.
Non-highway congestion (29.4%) runs slightly higher than the state level (11% higher).
Contra Costa's average driver income is higher than 91% of counties in California. 56% of counties in California have a younger driver population than Contra Costa.
Mobile device location data (anonymized and aggregated)
Road sensor networks and traffic counters
Historical traffic pattern databases
Identify traffic patterns street by street and analyze the exact corridors that matter to your project.
