
Total Traffic Volume & Performance in Jefferson County, Colorado
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day8,231 |
|---|
Trucks The percentage of the total traffic volume composed of heavy vehicles. | 5.9% |
|---|
Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 33.4 min |
|---|
Congestion ratio The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network. | 17.1% |
|---|
Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 43.9 yrs |
|---|
Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $122,542 |
|---|
Our data shows 8,231 vehicles per day on the average road in Jefferson County, Colorado, and 10,806,936 vehicle-miles traveled per day (≈3.9 billion per year) across its 1,044 miles of monitored roads. Trucks are a smaller part of the mix than across Colorado: 5.9% against 8.4%.
Busier roads than 94% of counties in Colorado
Jefferson sees 22% higher average daily traffic volume than the state average (8,231 vehicles per day against 6,752), suggesting more demand on each road - a factor worth weighing in site selection and logistics planning. In total volume terms, its road network carries about 8.5% of Colorado's statewide total of vehicle-miles. Jefferson carries more traffic than 94% of counties in Colorado.
Journey times here (33.4 minutes on average) closely track the state level. 59% of counties in Colorado have a longer average travel time than Jefferson's 33.4 minutes.
The congestion ratio of 17.1% runs slightly higher than the state level (9% higher).
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Jefferson County, Colorado
| Traffic | vehicles per day25,753 |
|---|
| Trucks | 7.7% |
|---|
| Average travel time | 38.2 min |
|---|
| Congestion ratio | 46.2% |
|---|
| Drivers’ average age | 44.0 yrs |
|---|
| Drivers’ average income | $126,195 |
|---|
Highways carry a significant share of travel in Jefferson County, Colorado: 44% of all vehicle-miles. The average highway carries 25,753 vehicles per day, 237% more than the average non-highway road in the same area, which carries 7,642 vehicles per day.
With 18% of the road miles (185 miles in 889 segments), highways punch above their length, carrying 4,780,437 vehicle-miles traveled per day (≈1.7 billion per year).
By highway travel volume, that ranks Jefferson in the top 5 counties in Colorado.
Lower highway truck share than 96% of counties in Colorado
Highway truck concentration here runs 31% lower than the state average, at 7.7%. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.
Jefferson's highway truck share (7.7%) is lower than 96% of counties in Colorado. By raw truck volume, Jefferson carries more highway trucks than 85% of counties in Colorado.

Non-highway Traffic in Jefferson County, Colorado
| Traffic | vehicles per day7,642 |
|---|
| Trucks | 4.5% |
|---|
| Average travel time | 33.2 min |
|---|
| Congestion ratio | 16.1% |
|---|
| Drivers’ average age | 43.9 yrs |
|---|
| Drivers’ average income | $120,810 |
|---|
A little more than half of the driving in Jefferson County, Colorado happens on local roads: 56% of all vehicle-miles. The average non-highway road carries 7,642 vehicles per day.
Spread over 859 miles and 26,474 segments, 82% of the road network, local roads carry a lighter load per mile: 6,026,499 vehicle-miles traveled per day (≈2.2 billion per year). The truck share on non-highway roads is 4.5%.
Drivers from higher-income areas than 94% of counties in Colorado
Non-highway roads carry a truck concentration that's 42% lower than the highway network.
Non-highway congestion (16.1%) runs slightly higher than the state level (7% higher).
94% of counties in Colorado see lower average driver income among trip origins than Jefferson. Jefferson's median driver age is lower than 81% of counties in Colorado.