
Total Traffic Volume & Performance in Owyhee County, Idaho
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day917 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 12.0% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 35.4 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. | 5.1% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 47.2 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $67,008 |
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The average monitored road in Owyhee County, Idaho carries 917 vehicles per day. Across its 190 miles of monitored roads, that adds up to 147,431 vehicle-miles traveled per day (≈53.8 million per year). At 12.0%, the truck share runs above the 9.7% across Idaho: about 1 in 8 vehicles.
Quieter roads than 98% of counties in Idaho
Owyhee sees 84% lower average daily traffic volume than the state average (917 vehicles per day against 5,734), suggesting less demand on each road - very light roads: easy truck access, but little passing trade for roadside retail. Network-wide, Owyhee accounts for about 0.3% of Idaho's statewide total of vehicle-miles. By volume, Owyhee's 917 vehicles per day trails 98% of counties in Idaho.
Journey times here (35.4 minutes on average) closely track the state level. 70% of counties in Idaho have a shorter average travel time than Owyhee's 35.4 minutes.
At 68% lower than the state level, the 5.1% congestion ratio signals smoother traffic flow - delays are rare enough to plan travel times almost to the minute.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Owyhee County, Idaho
| Traffic | vehicles per day2,528 |
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| Trucks | 14.4% |
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| Average travel time | 42.3 min |
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| Congestion ratio | 5.8% |
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| Drivers’ average age | 47.6 yrs |
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| Drivers’ average income | $67,909 |
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Highways carry a significant share of travel in Owyhee County, Idaho: 40% of all vehicle-miles. The average highway carries 2,528 vehicles per day, 240% more than the average non-highway road in the same area, which carries 742 vehicles per day.
With 20% of the road miles (37 miles in 140 segments), highways punch above their length, carrying 59,065 vehicle-miles traveled per day (≈21.6 million per year).
Fewer highway trucks than 97% of counties in Idaho
At 14.4%, the highway truck share matches the state average for similar road classifications. The highway traffic mix is typical for Idaho: neither freight- nor commuter-dominated.
By truck concentration, highways here outrank 71% of counties in Idaho. By raw truck volume, Owyhee carries fewer highway trucks than 97% of counties in Idaho.

Non-highway Traffic in Owyhee County, Idaho
| Traffic | vehicles per day742 |
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| Trucks | 10.4% |
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| Average travel time | 34.6 min |
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| Congestion ratio | 5.1% |
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| Drivers’ average age | 46.8 yrs |
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| Drivers’ average income | $66,392 |
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A little more than half of the driving in Owyhee County, Idaho happens on local roads: 60% of all vehicle-miles. A typical local road sees 742 vehicles per day.
Local roads make up 80% of the monitored road miles (153 miles in 1,295 segments) but carry less than their share of travel: 88,366 vehicle-miles traveled per day (≈32.3 million per year). About 1 in 10 vehicles on non-highway roads is a truck (10.4%).
Local congestion 69% below the Idaho average
The concentration of trucks on non-highway roads is 28% lower than on highways.
At 69% lower than the state level, the non-highway congestion ratio of 5.1% signals easier movement on local roads.
70% of counties in Idaho see higher average driver income among trip origins than Owyhee. The driver population here skews older than 56% of counties in Idaho.