
Total Traffic Volume & Performance in Shasta County, California
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day5,129 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 12.3% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 30.8 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. | 18.2% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 47.5 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $77,354 |
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Our data shows 5,129 vehicles per day on the average road in Shasta County, California, and 3,941,778 vehicle-miles traveled per day (≈1.4 billion per year) across its 799 miles of monitored roads. About 1 in 8 vehicles is a truck, well above the 7.8% across California - a freight-heavy mix.
Shorter trips than 91% of counties in California
At 5,129 vehicles per day, the average monitored road in Shasta carries 60% less traffic than the state average of 12,766, suggesting less demand on each road - very light roads: easy truck access, but little passing trade for roadside retail. Network-wide, Shasta accounts for about 0.4% of California's statewide total of vehicle-miles. By volume, Shasta's 5,129 vehicles per day trails 70% of counties in California.
At 30.8 minutes, the average travel time is 11% lower than the state level. On travel time, Shasta runs shorter than 91% of counties in California.
Congestion runs 34% lower than the state level, at a ratio of 18.2%, which means smoother traffic flow - fewer delays make delivery windows more reliable.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Shasta County, California
| Traffic | vehicles per day7,640 |
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| Trucks | 17.8% |
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| Average travel time | 37.5 min |
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| Congestion ratio | 28.8% |
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| Drivers’ average age | 48.6 yrs |
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| Drivers’ average income | $75,695 |
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A little more than half of the driving in Shasta County, California happens on highways: 56% of all vehicle-miles. The average highway carries 7,640 vehicles per day, 59% more than the average non-highway road in the same area, which carries 4,812 vehicles per day.
Highways make up 32% of the monitored road miles (256 miles, 1,198 segments), so they carry more than their share: 2,209,825 vehicle-miles traveled per day (≈807 million per year).
Freight-heavy highways
The concentration of trucks on highways (17.8%) is 71% higher than the state average for similar road classifications. Highways here lean toward freight, so highway access is a real asset for logistics operators.
78% of counties in California see a lower highway truck share than Shasta's 17.8%. By raw truck volume, Shasta carries fewer highway trucks than 73% of counties in California.

Non-highway Traffic in Shasta County, California
| Traffic | vehicles per day4,812 |
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| Trucks | 5.3% |
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| Average travel time | 29.9 min |
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| Congestion ratio | 16.9% |
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| Drivers’ average age | 47.0 yrs |
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| Drivers’ average income | $78,540 |
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A significant share of driving in Shasta County, California, 44% of vehicle-miles, happens on local roads. A typical local road sees 4,812 vehicles per day.
Local roads make up 68% of the monitored road miles (543 miles in 9,501 segments) but carry less than their share of travel: 1,731,953 vehicle-miles traveled per day (≈632 million per year). About 1 in 19 vehicles on non-highway roads is a truck (5.3%).
Drivers from lower-income areas than 74% of counties in California
Compared to highways, non-highway routes see 70% fewer trucks by share.
The non-highway congestion ratio of 16.9% is 36% lower than the state level, suggesting more efficient local mobility than the state average.
Trip origins here have lower average income than 74% of counties in California. Shasta's median driver age is higher than 70% of counties in California.