
Total Traffic Volume & Performance in Santa Barbara County, California
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day9,100 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 8.1% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 37.8 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. | 25.9% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 43.3 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $104,844 |
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The average monitored road in Santa Barbara County, California carries 9,100 vehicles per day. Across its 892 miles of monitored roads, that adds up to 9,572,214 vehicle-miles traveled per day (≈3.5 billion per year). About 1 in 12 vehicles is a truck, in line with California (7.8%).
Longer trips than 84% of counties in California
Santa Barbara's average daily traffic volume is 29% lower than the state average - 9,100 vehicles per day against 12,766 - suggesting less traffic load per road - less drive-by exposure for retail, but easier access for deliveries. Across the whole network, that travel is about 1.0% of California's statewide total. By volume, Santa Barbara's 9,100 vehicles per day outpaces 70% of counties in California.
At 37.8 minutes, the average travel time is 9% higher than the state level. On travel time, Santa Barbara runs longer than 84% of counties in California.
Congestion is somewhat lower than the state level, at a ratio of 25.9% (5% lower).
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Santa Barbara County, California
| Traffic | vehicles per day20,996 |
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| Trucks | 10.2% |
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| Average travel time | 38.5 min |
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| Congestion ratio | 38.2% |
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| Drivers’ average age | 43.6 yrs |
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| Drivers’ average income | $109,026 |
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A little more than half of the driving in Santa Barbara County, California happens on highways: 60% of all vehicle-miles. The average highway carries 20,996 vehicles per day, 159% more than the average non-highway road in the same area, which carries 8,106 vehicles per day.
With 33% of the road miles (298 miles in 1,110 segments), highways punch above their length, carrying 5,761,463 vehicle-miles traveled per day (≈2.1 billion per year).
That is more highway travel volume than 69% of counties in California.
Fewer highway trucks than 67% of counties in California
Highway truck concentration here (10.2%) closely tracks the state average for similar road classifications. The highway traffic mix is typical for California: neither freight- nor commuter-dominated.
59% of counties in California see a higher highway truck share than Santa Barbara's 10.2%. Santa Barbara's highway truck count is lower than 67% of counties in California, at roughly 2,137 trucks per day.

Non-highway Traffic in Santa Barbara County, California
| Traffic | vehicles per day8,106 |
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| Trucks | 5.0% |
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| Average travel time | 37.7 min |
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| Congestion ratio | 24.9% |
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| Drivers’ average age | 43.0 yrs |
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| Drivers’ average income | $101,395 |
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A significant share of driving in Santa Barbara County, California, 40% of vehicle-miles, happens on local roads. A typical local road sees 8,106 vehicles per day.
Spread over 595 miles and 13,284 segments, 67% of the road network, local roads carry a lighter load per mile: 3,810,751 vehicle-miles traveled per day (≈1.4 billion per year). About 1 in 20 vehicles on non-highway roads is a truck (5.0%).
Younger drivers than 68% of counties in California
The concentration of trucks on non-highway roads is 50% lower than on highways.
Non-highway congestion (24.9%) runs slightly lower than the state level (6% lower).
Santa Barbara's average driver income is higher than 67% of counties in California. Santa Barbara's median driver age is lower than 68% of counties in California.