
Total Traffic Volume & Performance in Sherman County, Oregon
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day2,199 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 19.7% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 53.2 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. | 8.3% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 48.2 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $67,511 |
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A typical monitored road in Sherman County, Oregon sees 2,199 vehicles per day, while its 166 miles of monitored roads together handle 631,260 vehicle-miles traveled per day (≈230 million per year). About 1 in 5 vehicles is a truck, well above the 9.2% across Oregon - a freight-heavy mix.
Longer trips than 97% of counties in Oregon
Sherman's average daily traffic volume is 63% lower than the state average - 2,199 vehicles per day against 5,908 - suggesting less traffic load per road - quiet roads that suit freight movement more than drive-by retail. Across the whole network, that travel is about 0.7% of Oregon's statewide total. 80% of counties in Oregon see more traffic than Sherman's 2,199 vehicles per day.
Journey times run 55% higher than the state level, at 53.2 minutes on average. On travel time, Sherman runs longer than 97% of counties in Oregon.
Congestion runs 50% lower than the state level, at a ratio of 8.3%, which means smoother traffic flow - fewer delays make delivery windows more reliable.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Sherman County, Oregon
| Traffic | vehicles per day4,120 |
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| Trucks | 20.1% |
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| Average travel time | 61.8 min |
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| Congestion ratio | 10.2% |
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| Drivers’ average age | 48.0 yrs |
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| Drivers’ average income | $67,879 |
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Highways carry nearly all of the traffic in Sherman County, Oregon, 96% of all vehicle-miles. The average highway carries 4,120 vehicles per day, 437% more than the average non-highway road in the same area, which carries 767 vehicles per day.
With 66% of the road miles (109 miles in 243 segments), highways punch above their length, carrying 608,536 vehicle-miles traveled per day (≈222 million per year).
Higher highway truck share than 88% of counties in Oregon
The concentration of trucks on highways (20.1%) is 68% higher than the state average for similar road classifications. That marks Sherman as a major freight corridor, where highway access is what logistics operators compete on.
88% of counties in Oregon see a lower highway truck share than Sherman's 20.1%. 53% of counties in Oregon see more highway trucks per day than Sherman's roughly 828.

Non-highway Traffic in Sherman County, Oregon
| Traffic | vehicles per day767 |
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| Trucks | 8.2% |
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| Average travel time | 46.9 min |
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| Congestion ratio | 6.9% |
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| Drivers’ average age | 53.3 yrs |
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| Drivers’ average income | $61,461 |
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With 4% of vehicle-miles, local roads play a minor role in how Sherman County, Oregon travels. A typical local road sees 767 vehicles per day.
Local roads make up 34% of the monitored road miles (57 miles in 326 segments) but carry less than their share of travel: 22,723 vehicle-miles traveled per day (≈8.3 million per year). About 1 in 12 vehicles on non-highway roads is a truck (8.2%).
Local congestion 57% below the Oregon average
The concentration of trucks on non-highway roads is 59% lower than on highways.
The non-highway congestion ratio of 6.9% is 57% lower than the state level, suggesting more efficient local mobility than the state average.
Trip origins here have lower average income than 66% of counties in Oregon. Sherman's median driver age is lower than 51% of counties in Oregon.