
Total Traffic Volume & Performance in Teton County, Montana
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day850 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 10.9% |
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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. | 4.8% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 52.7 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $70,607 |
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A typical monitored road in Teton County, Montana sees 850 vehicles per day, while its 215 miles of monitored roads together handle 172,243 vehicle-miles traveled per day (≈62.9 million per year). About 1 in 9 vehicles is a truck, in line with Montana (11.7%).
Quieter roads than 91% of counties in Montana
At 850 vehicles per day, the average monitored road in Teton carries 80% less traffic than the state average of 4,202, suggesting less demand on each road - very light roads: easy truck access, but little passing trade for roadside retail. In total volume terms, its road network carries about 0.6% of Montana's statewide total of vehicle-miles. 91% of counties in Montana see more traffic than Teton's 850 vehicles per day.
Journey times run 8% lower than the state level, at 33.3 minutes on average. 87% of counties in Montana have a longer average travel time than Teton's 33.3 minutes.
The congestion ratio of 4.8% is 61% lower, pointing to smoother traffic flow than the state level - free-flowing roads make scheduled deliveries highly predictable.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Teton County, Montana
| Traffic | vehicles per day1,230 |
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| Trucks | 13.2% |
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| Average travel time | 47.7 min |
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| Congestion ratio | 2.3% |
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| Drivers’ average age | 53.5 yrs |
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| Drivers’ average income | $71,466 |
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Highways carry about half of all travel in Teton County, Montana, 48% of vehicle-miles. The average highway carries 1,230 vehicles per day, 48% more than the average non-highway road in the same area, which carries 828 vehicles per day.
Highways make up 26% of the monitored road miles (57 miles, 44 segments), so they carry more than their share: 83,036 vehicle-miles traveled per day (≈30.3 million per year).
Fewer highway trucks than 91% of counties in Montana
Highway truck concentration here runs 12% lower than the state average, at 13.2%. The highway traffic mix is typical for Montana: neither freight- nor commuter-dominated.
Teton's highway truck share (13.2%) is lower than 63% of counties in Montana. By raw truck volume, Teton carries fewer highway trucks than 91% of counties in Montana.

Non-highway Traffic in Teton County, Montana
| Traffic | vehicles per day828 |
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| Trucks | 8.8% |
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| Average travel time | 32.5 min |
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| Congestion ratio | 5.0% |
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| Drivers’ average age | 52.5 yrs |
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| Drivers’ average income | $70,286 |
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Local roads carry about half of all travel in Teton County, Montana, 52% of vehicle-miles. On the average non-highway road, that comes to 828 vehicles per day.
Spread over 158 miles and 754 segments, 74% of the road network, local roads carry a lighter load per mile: 89,207 vehicle-miles traveled per day (≈32.6 million per year). About 1 in 11 vehicles on non-highway roads is a truck (8.8%).
Local congestion 59% below the Montana average
Compared to highways, non-highway routes see 33% fewer trucks by share.
At 59% lower than the state level, the non-highway congestion ratio of 5.0% signals easier movement on local roads.
Trip origins here have higher average income than 65% of counties in Montana. 60% of counties in Montana have a younger driver population than Teton.