
Total Traffic Volume & Performance in Orange County, California
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day15,435 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 4.9% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 33.5 min |
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Congestion ratio The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network. | 28.1% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 43.1 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $131,074 |
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Our data shows 15,435 vehicles per day on the average road in Orange County, California, and 68,602,703 vehicle-miles traveled per day (≈25.0 billion per year) across its 3,284 miles of monitored roads. About 1 in 20 vehicles is a truck, fewer than the 1 in 13 across California.
Busier roads than 96% of counties in California
Orange's average daily traffic volume is 21% higher than the state average - 15,435 vehicles per day against 12,766 - suggesting more traffic load per road - a critical factor for logistics and site planning. Across the whole network, that travel is about 7.4% of California's statewide total. By volume, Orange's 15,435 vehicles per day outpaces 96% of counties in California.
At 33.5 minutes, the average travel time matches the state level closely. On travel time, Orange runs shorter than 51% of counties in California.
The congestion ratio of 28.1% is in line with the state level.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Orange County, California
| Traffic | vehicles per day62,949 |
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| Trucks | 6.2% |
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| Average travel time | 39.0 min |
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| Congestion ratio | 68.2% |
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| Drivers’ average age | 42.6 yrs |
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| Drivers’ average income | $128,706 |
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Highways carry about half of all travel in Orange County, California, 47% of vehicle-miles. The average highway carries 62,949 vehicles per day, 345% more than the average non-highway road in the same area, which carries 14,132 vehicles per day.
That comes from just 16% of the monitored road miles: 509 miles in 2,935 segments, carrying 32,138,667 vehicle-miles traveled per day (≈11.7 billion per year).
No more than 4 other counties in California move more traffic on their highways.
Lower highway truck share than 98% of counties in California
The concentration of trucks on highways (6.2%) is 40% 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.
By truck concentration, highways here trail 98% of counties in California. By raw truck volume, Orange carries more highway trucks than 73% of counties in California.

Non-highway Traffic in Orange County, California
| Traffic | vehicles per day14,132 |
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| Trucks | 3.7% |
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| Average travel time | 33.4 min |
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| Congestion ratio | 27.0% |
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| Drivers’ average age | 43.6 yrs |
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| Drivers’ average income | $132,559 |
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Local roads carry about half of all travel in Orange County, California, 53% of vehicle-miles. On the average non-highway road, that comes to 14,132 vehicles per day.
Spread over 2,774 miles and 106,971 segments, 84% of the road network, local roads carry a lighter load per mile: 36,464,036 vehicle-miles traveled per day (≈13.3 billion per year). The truck share on non-highway roads is 3.7%.
Drivers from higher-income areas than 89% of counties in California
Compared to highways, non-highway routes see 40% fewer trucks by share.
Non-highway congestion here (27.0%) closely tracks the state average.
89% of counties in California see lower average driver income among trip origins than Orange. The driver population here skews younger than 72% of counties in California.