
Total Traffic Volume & Performance in Boundary County, Idaho
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day3,176 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 8.6% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 30.3 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. | 10.6% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 51.0 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $69,311 |
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Our data shows 3,176 vehicles per day on the average road in Boundary County, Idaho, and 191,367 vehicle-miles traveled per day (≈69.8 million per year) across its 66 miles of monitored roads. Trucks are 8.6% of traffic, close to the 9.7% across Idaho.
Shorter trips than 74% of counties in Idaho
Boundary sees 45% lower average daily traffic volume than the state average (3,176 vehicles per day against 5,734), suggesting less demand on each road - lighter roads for freight, but less passing trade for roadside retail. In total volume terms, its road network carries about 0.4% of Idaho's statewide total of vehicle-miles. 56% of counties in Idaho see less traffic than Boundary's 3,176 vehicles per day.
At 30.3 minutes, the average travel time is 10% lower than the state level. 74% of counties in Idaho have a longer average travel time than Boundary's 30.3 minutes.
The congestion ratio of 10.6% is 34% lower, pointing to smoother traffic flow than the state level - travel times are easy to plan around for scheduled deliveries.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Boundary County, Idaho
| Traffic | vehicles per day5,197 |
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| Trucks | 8.7% |
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| Average travel time | 31.8 min |
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| Congestion ratio | 10.6% |
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| Drivers’ average age | 51.0 yrs |
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| Drivers’ average income | $68,532 |
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Highways carry nearly all of the traffic in Boundary County, Idaho, 95% of all vehicle-miles. The average highway carries 5,197 vehicles per day, 1435% more than the average non-highway road in the same area, which carries 338 vehicles per day.
With 61% of the road miles (40 miles in 618 segments), highways punch above their length, carrying 182,022 vehicle-miles traveled per day (≈66.4 million per year).
Lower highway truck share than 88% of counties in Idaho
At 8.7%, highway truck share is 38% 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 88% of counties in Idaho. Boundary's highway truck count is lower than 74% of counties in Idaho, at roughly 454 trucks per day.

Non-highway Traffic in Boundary County, Idaho
| Traffic | vehicles per day338 |
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| Trucks | 6.1% |
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| Average travel time | 28.2 min |
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| Drivers’ average age | 47.3 yrs |
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| Drivers’ average income | $81,727 |
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With 5% of vehicle-miles, local roads play a minor role in how Boundary County, Idaho travels. A typical local road sees 338 vehicles per day.
Local roads make up 39% of the monitored road miles (26 miles in 440 segments) but carry less than their share of travel: 9,345 vehicle-miles traveled per day (≈3.4 million per year). The truck share on non-highway roads is 6.1%.
Older drivers than 70% of counties in Idaho
The concentration of trucks on non-highway roads is 30% lower than on highways.
60% of counties in Idaho see higher average driver income among trip origins than Boundary. 70% of counties in Idaho have a younger driver population than Boundary.