
Total Traffic Volume & Performance in Sheridan County, Montana
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day935 |
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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. | 37.0 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. | 3.7% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 53.5 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $67,730 |
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A typical monitored road in Sheridan County, Montana sees 935 vehicles per day, while its 128 miles of monitored roads together handle 72,501 vehicle-miles traveled per day (≈26.5 million per year). About 1 in 9 vehicles is a truck, in line with Montana (11.7%).
Traffic 78% below the Montana average
At 935 vehicles per day, the average monitored road in Sheridan carries 78% less traffic than the state average of 4,202, suggesting less demand on each road - quiet roads that suit freight movement more than drive-by retail. Network-wide, Sheridan accounts for about 0.3% of Montana's statewide total of vehicle-miles. By volume, Sheridan's 935 vehicles per day trails 85% of counties in Montana.
The average trip takes 37.0 minutes, on par with the state level. Its average travel time of 37.0 minutes is shorter than 65% of counties in Montana.
The congestion ratio of 3.7% is 69% 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 Sheridan County, Montana
| Traffic | vehicles per day1,615 |
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| Trucks | 12.3% |
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| Average travel time | 43.1 min |
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| Congestion ratio | 4.8% |
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| Drivers’ average age | 53.6 yrs |
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| Drivers’ average income | $69,289 |
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Highways carry about half of all travel in Sheridan County, Montana, 54% of vehicle-miles. The average highway carries 1,615 vehicles per day, 294% more than the average non-highway road in the same area, which carries 410 vehicles per day.
Highways make up 32% of the monitored road miles (41 miles, 222 segments), so they carry more than their share: 39,120 vehicle-miles traveled per day (≈14.3 million per year).
The fewest highway trucks of any county in Montana
At 12.3%, highway truck share is 18% lower than the state average. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.
By truck concentration, highways here trail 78% of counties in Montana. At roughly 118 trucks per day, Sheridan carries the lowest volume of highway trucks in Montana.

Non-highway Traffic in Sheridan County, Montana
| Traffic | vehicles per day410 |
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| Trucks | 9.2% |
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| Average travel time | 32.4 min |
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| Congestion ratio | 3.0% |
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| Drivers’ average age | 53.2 yrs |
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| Drivers’ average income | $61,944 |
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Local roads carry about half of all travel in Sheridan County, Montana, 46% of vehicle-miles. On the average non-highway road, that comes to 410 vehicles per day.
Spread over 87 miles and 288 segments, 68% of the road network, local roads carry a lighter load per mile: 33,380 vehicle-miles traveled per day (≈12.2 million per year). About 1 in 11 vehicles on non-highway roads is a truck (9.2%).
Local congestion 76% below the Montana average
The concentration of trucks on non-highway roads is 26% lower than on highways.
The non-highway congestion ratio of 3.0% is 76% lower than the state level, suggesting more efficient local mobility than the state average.
Sheridan's average driver income is higher than 53% of counties in Montana. Sheridan's median driver age is higher than 69% of counties in Montana.