
Total Traffic Volume & Performance in Carbon County, Wyoming
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day2,771 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 29.7% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 38.6 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. | 5.7% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 45.0 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $75,596 |
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The average monitored road in Carbon County, Wyoming carries 2,771 vehicles per day. Across its 667 miles of monitored roads, that adds up to 2,405,756 vehicle-miles traveled per day (≈878 million per year). About 1 in 3 vehicles is a truck, well above the 17.9% across Wyoming - a freight-heavy mix.
Congestion 50% below the Wyoming average
Carbon's average daily traffic volume is 24% lower than the state average - 2,771 vehicles per day against 3,650 - suggesting less traffic load per road - a critical factor for logistics and site planning. Across the whole network, that travel is about 11% of Wyoming's statewide total. 55% of counties in Wyoming see more traffic than Carbon's 2,771 vehicles per day.
The average trip takes 38.6 minutes, 12% higher than the state level. On travel time, Carbon runs longer than 73% of counties in Wyoming.
The congestion ratio of 5.7% is 50% lower, pointing to smoother traffic flow than the state level - delays are rare enough to plan travel times almost to the minute.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Carbon County, Wyoming
| Traffic | vehicles per day6,444 |
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| Trucks | 32.5% |
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| Average travel time | 42.2 min |
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| Drivers’ average age | 44.2 yrs |
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| Drivers’ average income | $77,036 |
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The vast majority of driving in Carbon County, Wyoming happens on highways: 86% of all vehicle-miles. The average highway carries 6,444 vehicles per day, 213% more than the average non-highway road in the same area, which carries 2,060 vehicles per day.
With 41% of the road miles (273 miles in 375 segments), highways punch above their length, carrying 2,077,377 vehicle-miles traveled per day (≈758 million per year).
By highway travel volume, that ranks Carbon in the top 3 counties in Wyoming.
The most highway trucks of any county in Wyoming
Highway truck concentration here runs 40% higher than the state average, at 32.5%. Highways here lean toward freight, so highway access is a real asset for logistics operators.
Carbon's highway truck share (32.5%) is higher than 95% of counties in Wyoming. Carbon also moves the highest raw count of highway trucks in Wyoming, at roughly 2,475 per day.

Non-highway Traffic in Carbon County, Wyoming
| Traffic | vehicles per day2,060 |
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| Trucks | 11.9% |
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| Average travel time | 37.9 min |
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| Congestion ratio | 5.7% |
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| Drivers’ average age | 46.5 yrs |
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| Drivers’ average income | $71,980 |
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Only a small share of travel in Carbon County, Wyoming happens on local roads: 14% of vehicle-miles. A typical local road sees 2,060 vehicles per day.
Local roads make up 59% of the monitored road miles (393 miles in 1,935 segments) but carry less than their share of travel: 328,379 vehicle-miles traveled per day (≈120 million per year). About 1 in 8 vehicles on non-highway roads is a truck (11.9%).
Younger drivers than 77% of counties in Wyoming
Non-highway roads carry a truck concentration that's 63% lower than the highway network.
The non-highway congestion ratio of 5.7% is 51% lower than the state level, suggesting more efficient local mobility than the state average.
Trip origins here have higher average income than 55% of counties in Wyoming. Carbon's median driver age is lower than 77% of counties in Wyoming.