
Total Traffic Volume & Performance in Denver County, Colorado
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day9,512 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 6.3% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 34.5 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. | 19.7% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 40.5 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $106,571 |
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The average monitored road in Denver County, Colorado carries 9,512 vehicles per day. Across its 950 miles of monitored roads, that adds up to 13,746,468 vehicle-miles traveled per day (≈5.0 billion per year). Trucks are a smaller part of the mix than across Colorado: 6.3% against 8.4%.
The busiest roads of any county in Colorado
Denver's average daily traffic volume is 41% higher than the state average - 9,512 vehicles per day against 6,752 - suggesting more traffic load per road - more exposure for roadside businesses, and more competition for road space. Across the whole network, that travel is about 11% of Colorado's statewide total. Denver stands out as having the highest traffic volume in Colorado - 9,512 vehicles per day.
Journey times here (34.5 minutes on average) closely track the state level. Its average travel time of 34.5 minutes is longer than 52% of counties in Colorado.
At 25% higher than the state level, the 19.7% congestion ratio signals more pronounced congestion - a factor for delivery windows and signal timing.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Denver County, Colorado
| Traffic | vehicles per day50,203 |
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| Trucks | 7.8% |
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| Average travel time | 37.5 min |
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| Congestion ratio | 69.0% |
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| Drivers’ average age | 41.2 yrs |
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| Drivers’ average income | $109,807 |
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Travel in Denver County, Colorado splits roughly evenly, with about half of it (54% of vehicle-miles) on highways. The average highway carries 50,203 vehicles per day, 495% more than the average non-highway road in the same area, which carries 8,437 vehicles per day.
Yet highways are only 15% of the road network, 143 miles in 933 segments, so each mile of them is 3.6 times as busy as the average road mile.
That is the most highway travel volume of any county in Colorado.
The most highway trucks of any county in Colorado
The concentration of trucks on highways (7.8%) is 30% lower than the state average for similar road classifications. Trucks are a small share of a very large highway flow, so Denver still moves heavy freight volumes alongside its passenger traffic.
94% of counties in Colorado see a higher highway truck share than Denver's 7.8%. Denver also moves the highest raw count of highway trucks in Colorado, at roughly 4,046 per day.

Non-highway Traffic in Denver County, Colorado
| Traffic | vehicles per day8,437 |
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| Trucks | 4.6% |
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| Average travel time | 34.4 min |
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| Congestion ratio | 18.4% |
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| Drivers’ average age | 39.3 yrs |
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| Drivers’ average income | $103,761 |
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Travel in Denver County, Colorado splits roughly evenly, with about half of it (46% of vehicle-miles) on local roads. The average non-highway road carries 8,437 vehicles per day.
Local roads make up 85% of the monitored road miles (807 miles in 35,340 segments) but carry less than their share of travel: 6,366,738 vehicle-miles traveled per day (≈2.3 billion per year). The truck share on non-highway roads is 4.6%.
Younger drivers than 98% of counties in Colorado
Non-highway roads carry a truck concentration that's 41% lower than the highway network.
The non-highway congestion ratio of 18.4% is 22% higher than the state level, suggesting slower local mobility than the state average.
Denver's average driver income is higher than 84% of counties in Colorado. Denver's median driver age is lower than 98% of counties in Colorado.