
Total Traffic Volume & Performance in Sutter County, California
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day6,453 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 8.8% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 32.6 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. | 15.3% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 43.5 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $85,774 |
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A typical monitored road in Sutter County, California sees 6,453 vehicles per day, while its 410 miles of monitored roads together handle 2,634,833 vehicle-miles traveled per day (≈962 million per year). Trucks are 8.8% of traffic, close to the 7.8% across California.
Traffic 49% below the California average
At 6,453 vehicles per day, the average monitored road in Sutter carries 49% less traffic than the state average of 12,766, suggesting less demand on each road - lighter roads for freight, but less 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, Sutter's 6,453 vehicles per day outpaces 51% of counties in California.
Journey times run 5% lower than the state level, at 32.6 minutes on average. On travel time, Sutter runs shorter than 68% of counties in California.
At 44% lower than the state level, the 15.3% 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 Sutter County, California
| Traffic | vehicles per day19,914 |
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| Trucks | 10.3% |
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| Average travel time | 37.4 min |
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| Congestion ratio | 33.5% |
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| Drivers’ average age | 43.4 yrs |
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| Drivers’ average income | $85,844 |
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A little more than half of the driving in Sutter County, California happens on highways: 68% of all vehicle-miles. The average highway carries 19,914 vehicles per day, 352% more than the average non-highway road in the same area, which carries 4,404 vehicles per day.
With 25% of the road miles (102 miles in 836 segments), highways punch above their length, carrying 1,803,673 vehicle-miles traveled per day (≈658 million per year).
Fewer highway trucks than 71% of counties in California
Highway truck concentration here (10.3%) closely tracks the state average for similar road classifications. The highway traffic mix is typical for California: neither freight- nor commuter-dominated.
53% of counties in California see a higher highway truck share than Sutter's 10.3%. By raw truck volume, Sutter carries fewer highway trucks than 71% of counties in California.

Non-highway Traffic in Sutter County, California
| Traffic | vehicles per day4,404 |
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| Trucks | 5.4% |
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| Average travel time | 31.9 min |
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| Congestion ratio | 12.5% |
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| Drivers’ average age | 43.5 yrs |
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| Drivers’ average income | $85,691 |
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Local roads carry a significant share of travel in Sutter County, California: 32% of all vehicle-miles. On the average non-highway road, that comes to 4,404 vehicles per day.
Local roads make up 75% of the monitored road miles (308 miles in 5,491 segments) but carry less than their share of travel: 831,161 vehicle-miles traveled per day (≈303 million per year). About 1 in 19 vehicles on non-highway roads is a truck (5.4%).
Local congestion 53% below the California average
Compared to highways, non-highway routes see 48% fewer trucks by share.
The non-highway congestion ratio of 12.5% is 53% lower than the state level, suggesting more efficient local mobility than the state average.
Trip origins here have lower average income than 54% of counties in California. 65% of counties in California have an older driver population than Sutter.