
Total Traffic Volume & Performance in Sweetwater County, Wyoming
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day4,287 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 28.3% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 35.5 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. | 13.1% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 43.6 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $77,801 |
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A typical monitored road in Sweetwater County, Wyoming sees 4,287 vehicles per day, while its 858 miles of monitored roads together handle 3,236,765 vehicle-miles traveled per day (≈1.2 billion per year). Freight weighs heavily here: trucks are 28.3% of traffic, against 17.9% across Wyoming.
Busier roads than 77% of counties in Wyoming
Sweetwater sees 17% higher average daily traffic volume than the state average (4,287 vehicles per day against 3,650), suggesting more demand on each road - a factor worth weighing in site selection and logistics planning. Network-wide, Sweetwater accounts for about 15% of Wyoming's statewide total of vehicle-miles. Sweetwater carries more traffic than 77% of counties in Wyoming.
At 35.5 minutes, the average travel time matches the state level closely. On travel time, Sweetwater runs longer than 50% of counties in Wyoming.
Congestion is somewhat higher than the state level, at a ratio of 13.1% (14% higher) - relevant for traffic control and delivery planning.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Sweetwater County, Wyoming
| Traffic | vehicles per day6,533 |
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| Trucks | 31.7% |
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| Average travel time | 40.6 min |
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| Congestion ratio | 21.4% |
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| Drivers’ average age | 43.5 yrs |
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| Drivers’ average income | $77,760 |
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Highways carry the vast majority of travel in Sweetwater County, Wyoming, 86% of all vehicle-miles. The average highway carries 6,533 vehicles per day, 80% more than the average non-highway road in the same area, which carries 3,620 vehicles per day.
Highways make up 47% of the monitored road miles (400 miles, 566 segments), so they carry more than their share: 2,779,417 vehicle-miles traveled per day (≈1.0 billion per year).
No county in Wyoming moves more traffic on its highways.
Higher highway truck share than 89% of counties in Wyoming
At 31.7%, highway truck share is 36% higher than the state average. Highways here lean toward freight, so highway access is a real asset for logistics operators.
89% of counties in Wyoming see a lower highway truck share than Sweetwater's 31.7%. 89% of counties in Wyoming see fewer highway trucks per day than Sweetwater's roughly 2,070.

Non-highway Traffic in Sweetwater County, Wyoming
| Traffic | vehicles per day3,620 |
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| Trucks | 7.9% |
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| Average travel time | 34.0 min |
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| Congestion ratio | 10.6% |
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| Drivers’ average age | 43.6 yrs |
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| Drivers’ average income | $77,874 |
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Local roads carry only a small share of the traffic in Sweetwater County, Wyoming, 14% of all vehicle-miles. On the average non-highway road, that comes to 3,620 vehicles per day.
Local roads make up 53% of the monitored road miles (458 miles in 1,905 segments) but carry less than their share of travel: 457,348 vehicle-miles traveled per day (≈167 million per year). Trucks make up 7.9% of non-highway traffic, about 1 in 13 vehicles.
Younger drivers than 91% of counties in Wyoming
The concentration of trucks on non-highway roads is 75% lower than on highways.
Non-highway congestion (10.6%) runs slightly lower than the state level (9% lower).
59% of counties in Wyoming see lower average driver income among trip origins than Sweetwater. The driver population here skews younger than 91% of counties in Wyoming.