
Total Traffic Volume & Performance in Humboldt County, California
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day5,453 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 8.0% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 34.1 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. | 15.1% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 44.1 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $67,048 |
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The average monitored road in Humboldt County, California carries 5,453 vehicles per day. Across its 608 miles of monitored roads, that adds up to 3,124,521 vehicle-miles traveled per day (≈1.1 billion per year). Trucks are 8.0% of traffic, close to the 7.8% across California.
Traffic 57% below the California average
At 5,453 vehicles per day, the average monitored road in Humboldt carries 57% 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. In total volume terms, its road network carries about 0.3% of California's statewide total of vehicle-miles. By volume, Humboldt's 5,453 vehicles per day trails 65% of counties in California.
The average trip takes 34.1 minutes, on par with the state level. On travel time, Humboldt runs longer than 56% of counties in California.
At 45% lower than the state level, the 15.1% congestion ratio signals smoother traffic flow - travel times are easy to plan around for scheduled deliveries.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Humboldt County, California
| Traffic | vehicles per day11,759 |
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| Trucks | 8.7% |
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| Average travel time | 38.5 min |
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| Congestion ratio | 21.2% |
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| Drivers’ average age | 44.1 yrs |
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| Drivers’ average income | $65,246 |
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A little more than half of the driving in Humboldt County, California happens on highways: 67% of all vehicle-miles. The average highway carries 11,759 vehicles per day, 182% more than the average non-highway road in the same area, which carries 4,168 vehicles per day.
With 41% of the road miles (252 miles in 1,538 segments), highways punch above their length, carrying 2,089,775 vehicle-miles traveled per day (≈763 million per year).
Fewer highway trucks than 86% of counties in California
Highway truck concentration here runs 16% lower than the state average, at 8.7%. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.
Humboldt's highway truck share (8.7%) is lower than 69% of counties in California. 86% of counties in California see more highway trucks per day than Humboldt's roughly 1,021.

Non-highway Traffic in Humboldt County, California
| Traffic | vehicles per day4,168 |
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| Trucks | 6.6% |
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| Average travel time | 33.2 min |
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| Congestion ratio | 13.9% |
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| Drivers’ average age | 44.1 yrs |
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| Drivers’ average income | $69,233 |
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Local roads carry a significant share of travel in Humboldt County, California: 33% of all vehicle-miles. A typical local road sees 4,168 vehicles per day.
Local roads make up 59% of the monitored road miles (356 miles in 7,548 segments) but carry less than their share of travel: 1,034,747 vehicle-miles traveled per day (≈378 million per year). Trucks make up 6.6% of non-highway traffic, about 1 in 15 vehicles.
Drivers from lower-income areas than 93% of counties in California
Non-highway roads carry a truck concentration that's 24% lower than the highway network.
Non-highway congestion (13.9%) runs 48% lower than the state average, pointing to smoother local traffic flow.
93% of counties in California see higher average driver income among trip origins than Humboldt. The driver population here skews younger than 56% of counties in California.