
Total Traffic Volume & Performance in Kootenai County, Idaho
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day5,955 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 6.7% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 35.2 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. | 19.5% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 47.1 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $77,819 |
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The average monitored road in Kootenai County, Idaho carries 5,955 vehicles per day. Across its 735 miles of monitored roads, that adds up to 3,854,991 vehicle-miles traveled per day (≈1.4 billion per year). About 1 in 15 vehicles is a truck, fewer than the 1 in 10 across Idaho.
Busier roads than 88% of counties in Idaho
Kootenai's average daily traffic volume of 5,955 vehicles per day is on par with the state average of 5,734. In total volume terms, its road network carries about 8.5% of Idaho's statewide total of vehicle-miles. 88% of counties in Idaho see less traffic than Kootenai's 5,955 vehicles per day.
At 35.2 minutes, the average travel time matches the state level closely. Its average travel time of 35.2 minutes is longer than 65% of counties in Idaho.
Congestion runs 22% higher than the state level, at a ratio of 19.5%, which means more pronounced congestion - crucial for traffic control improvement and logistics planning.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Kootenai County, Idaho
| Traffic | vehicles per day11,909 |
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| Trucks | 9.3% |
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| Average travel time | 35.4 min |
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| Congestion ratio | 33.6% |
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| Drivers’ average age | 47.7 yrs |
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| Drivers’ average income | $76,615 |
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Highways carry a significant share of travel in Kootenai County, Idaho: 42% of all vehicle-miles. The average highway carries 11,909 vehicles per day, 110% more than the average non-highway road in the same area, which carries 5,677 vehicles per day.
With 23% of the road miles (168 miles in 554 segments), highways punch above their length, carrying 1,637,298 vehicle-miles traveled per day (≈598 million per year).
That puts Kootenai among the top 5 counties in Idaho for highway travel volume.
Lower highway truck share than 76% of counties in Idaho
Highway truck concentration here runs 34% lower than the state average, at 9.3%. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.
Kootenai's highway truck share (9.3%) is lower than 76% of counties in Idaho. By raw truck volume, Kootenai carries more highway trucks than 62% of counties in Idaho.

Non-highway Traffic in Kootenai County, Idaho
| Traffic | vehicles per day5,677 |
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| Trucks | 4.8% |
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| Average travel time | 35.2 min |
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| Congestion ratio | 18.9% |
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| Drivers’ average age | 47.0 yrs |
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| Drivers’ average income | $78,428 |
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Local roads carry more than half of all travel in Kootenai County, Idaho (58% of vehicle-miles). On the average non-highway road, that comes to 5,677 vehicles per day.
Local roads make up 77% of the monitored road miles (567 miles in 11,868 segments) but carry less than their share of travel: 2,217,693 vehicle-miles traveled per day (≈809 million per year). Trucks make up 4.8% of non-highway traffic, about 1 in 21 vehicles.
Drivers from higher-income areas than 86% of counties in Idaho
Compared to highways, non-highway routes see 49% fewer trucks by share.
The non-highway congestion ratio of 18.9% is 15% higher than the state level, suggesting slower local mobility than the state average.
Trip origins here have higher average income than 86% of counties in Idaho. 53% of counties in Idaho have a younger driver population than Kootenai.