
Total Traffic Volume & Performance in Boone County, Iowa
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day2,046 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 9.4% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 35.3 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. | 8.0% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 43.5 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $78,446 |
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Our data shows 2,046 vehicles per day on the average road in Boone County, Iowa, and 693,007 vehicle-miles traveled per day (≈253 million per year) across its 314 miles of monitored roads. Trucks are 9.4% of traffic, close to the 11.0% across Iowa.
Longer trips than 73% of counties in Iowa
At 2,046 vehicles per day, the average monitored road in Boone carries 33% less traffic than the state average of 3,042, suggesting less demand on each road - lighter roads for freight, but less passing trade for roadside retail. Across the whole network, that travel is about 0.8% of Iowa's statewide total. 67% of counties in Iowa see less traffic than Boone's 2,046 vehicles per day.
Journey times run 7% higher than the state level, at 35.3 minutes on average. On travel time, Boone runs longer than 73% of counties in Iowa.
The congestion ratio of 8.0% is 30% 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 Boone County, Iowa
| Traffic | vehicles per day4,339 |
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| Trucks | 11.2% |
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| Average travel time | 42.2 min |
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| Congestion ratio | 11.0% |
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| Drivers’ average age | 42.5 yrs |
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| Drivers’ average income | $75,553 |
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Travel in Boone County, Iowa splits roughly evenly, with about half of it (48% of vehicle-miles) on highways. The average highway carries 4,339 vehicles per day, 139% more than the average non-highway road in the same area, which carries 1,817 vehicles per day.
Highways make up 21% of the monitored road miles (65 miles, 330 segments), so they carry more than their share: 335,615 vehicle-miles traveled per day (≈122 million per year).
That is more highway travel volume than 54% of counties in Iowa.
Lower highway truck share than 86% of counties in Iowa
The concentration of trucks on highways (11.2%) is 30% lower than the state average for similar road classifications. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.
By truck concentration, highways here trail 86% of counties in Iowa. 65% of counties in Iowa see more highway trucks per day than Boone's roughly 488.

Non-highway Traffic in Boone County, Iowa
| Traffic | vehicles per day1,817 |
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| Trucks | 7.6% |
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| Average travel time | 34.7 min |
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| Congestion ratio | 7.8% |
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| Drivers’ average age | 44.2 yrs |
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| Drivers’ average income | $80,688 |
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Travel in Boone County, Iowa splits roughly evenly, with about half of it (52% of vehicle-miles) on local roads. On the average non-highway road, that comes to 1,817 vehicles per day.
Local roads make up 79% of the monitored road miles (249 miles in 3,292 segments) but carry less than their share of travel: 357,392 vehicle-miles traveled per day (≈130 million per year). Trucks make up 7.6% of non-highway traffic, about 1 in 13 vehicles.
Younger drivers than 96% of counties in Iowa
Compared to highways, non-highway routes see 32% fewer trucks by share.
At 30% lower than the state level, the non-highway congestion ratio of 7.8% signals easier movement on local roads.
Trip origins here have higher average income than 68% of counties in Iowa. The driver population here skews younger than 96% of counties in Iowa.