
Total Traffic Volume & Performance in Sacramento County, California
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day11,802 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 5.8% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 33.3 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. | 27.9% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 43.8 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $103,584 |
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The average monitored road in Sacramento County, California carries 11,802 vehicles per day. Across its 2,103 miles of monitored roads, that adds up to 33,124,746 vehicle-miles traveled per day (≈12.1 billion per year). Trucks are a smaller part of the mix than across California: 5.8% against 7.8%.
Busier roads than 84% of counties in California
At 11,802 vehicles per day, the average road in Sacramento carries somewhat less traffic than the state average of 12,766 (8% less). Across the whole network, that travel is about 3.6% of California's statewide total. By volume, Sacramento's 11,802 vehicles per day outpaces 84% of counties in California.
Journey times here (33.3 minutes on average) closely track the state level. Its average travel time of 33.3 minutes is shorter than 56% of counties in California.
At 27.9%, the congestion ratio matches the state level closely.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Sacramento County, California
| Traffic | vehicles per day57,030 |
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| Trucks | 8.5% |
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| Average travel time | 38.1 min |
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| Congestion ratio | 71.8% |
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| Drivers’ average age | 43.4 yrs |
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| Drivers’ average income | $103,468 |
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Highways carry a significant share of travel in Sacramento County, California: 43% of all vehicle-miles. The average highway carries 57,030 vehicles per day, 418% more than the average non-highway road in the same area, which carries 11,013 vehicles per day.
Yet highways are only 13% of the road network, 263 miles in 973 segments, so each mile of them is 3.4 times as busy as the average road mile.
By highway travel volume, Sacramento outranks 82% of counties in California.
More highway trucks than 84% of counties in California
Highway truck concentration here runs 18% lower than the state average, at 8.5%. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.
By truck concentration, highways here trail 73% of counties in California. 84% of counties in California see fewer highway trucks per day than Sacramento's roughly 4,836.

Non-highway Traffic in Sacramento County, California
| Traffic | vehicles per day11,013 |
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| Trucks | 3.8% |
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| Average travel time | 33.2 min |
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| Congestion ratio | 27.1% |
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| Drivers’ average age | 44.0 yrs |
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| Drivers’ average income | $103,657 |
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A little more than half of the driving in Sacramento County, California happens on local roads: 57% of all vehicle-miles. A typical local road sees 11,013 vehicles per day.
Spread over 1,839 miles and 55,801 segments, 87% of the road network, local roads carry a lighter load per mile: 18,859,089 vehicle-miles traveled per day (≈6.9 billion per year). About 1 in 26 vehicles on non-highway roads is a truck (3.8%).
Drivers from higher-income areas than 65% of counties in California
Compared to highways, non-highway routes see 55% fewer trucks by share.
At 27.1%, the non-highway congestion ratio matches the state level closely.
65% of counties in California see lower average driver income among trip origins than Sacramento. 60% of counties in California have an older driver population than Sacramento.