
Total Traffic Volume & Performance in Hardin County, Iowa
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day1,358 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 13.1% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 32.1 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. | 6.0% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 50.4 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $68,159 |
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A typical monitored road in Hardin County, Iowa sees 1,358 vehicles per day, while its 364 miles of monitored roads together handle 555,110 vehicle-miles traveled per day (≈203 million per year). Trucks are 13.1% of traffic, more than the 11.0% across Iowa.
Traffic 55% below the Iowa average
At 1,358 vehicles per day, the average monitored road in Hardin carries 55% less traffic than the state average of 3,042, suggesting less demand on each road - quiet roads that suit freight movement more than drive-by retail. Across the whole network, that travel is about 0.7% of Iowa's statewide total. By volume, Hardin's 1,358 vehicles per day trails 69% of counties in Iowa.
At 32.1 minutes, the average travel time matches the state level closely. 72% of counties in Iowa have a longer average travel time than Hardin's 32.1 minutes.
Congestion runs 47% lower than the state level, at a ratio of 6.0%, which means smoother traffic flow - fewer delays make delivery windows more reliable.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Hardin County, Iowa
| Traffic | vehicles per day3,597 |
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| Trucks | 19.7% |
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| Average travel time | 66.6 min |
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| Congestion ratio | 8.2% |
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| Drivers’ average age | 45.0 yrs |
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| Drivers’ average income | $74,243 |
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Highways carry a significant share of travel in Hardin County, Iowa: 42% of all vehicle-miles. The average highway carries 3,597 vehicles per day, 172% more than the average non-highway road in the same area, which carries 1,322 vehicles per day.
With 15% of the road miles (56 miles in 51 segments), highways punch above their length, carrying 230,494 vehicle-miles traveled per day (≈84.1 million per year).
Higher highway truck share than 74% of counties in Iowa
At 19.7%, highway truck share is 22% higher than the state average. Highways here lean toward freight, so highway access is a real asset for logistics operators.
By truck concentration, highways here outrank 74% of counties in Iowa. Hardin's highway truck count is higher than 57% of counties in Iowa, at roughly 708 trucks per day.

Non-highway Traffic in Hardin County, Iowa
| Traffic | vehicles per day1,322 |
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| Trucks | 8.3% |
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| Average travel time | 31.6 min |
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| Congestion ratio | 6.0% |
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| Drivers’ average age | 51.3 yrs |
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| Drivers’ average income | $66,661 |
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Local roads carry more than half of all travel in Hardin County, Iowa (58% of vehicle-miles). The average non-highway road carries 1,322 vehicles per day.
Spread over 308 miles and 3,231 segments, 85% of the road network, local roads carry a lighter load per mile: 324,616 vehicle-miles traveled per day (≈118 million per year). Trucks make up 8.3% of non-highway traffic, about 1 in 12 vehicles.
Drivers from lower-income areas than 79% of counties in Iowa
The concentration of trucks on non-highway roads is 58% lower than on highways.
Non-highway congestion (6.0%) runs 46% lower than the state average, pointing to smoother local traffic flow.
79% of counties in Iowa see higher average driver income among trip origins than Hardin. Hardin's median driver age is lower than 51% of counties in Iowa.