
Total Traffic Volume & Performance in Mills County, Iowa
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day2,228 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 11.5% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 30.2 min |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 50.5 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $82,477 |
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The average monitored road in Mills County, Iowa carries 2,228 vehicles per day. Across its 255 miles of monitored roads, that adds up to 740,144 vehicle-miles traveled per day (≈270 million per year). Trucks are 11.5% of traffic, close to the 11.0% across Iowa.
Shorter trips than 92% of counties in Iowa
At 2,228 vehicles per day, the average monitored road in Mills carries 27% less traffic than the state average of 3,042, suggesting less demand on each road - less drive-by exposure for retail, but easier access for deliveries. Across the whole network, that travel is about 0.9% of Iowa's statewide total. 72% of counties in Iowa see less traffic than Mills's 2,228 vehicles per day.
Journey times run 9% lower than the state level, at 30.2 minutes on average. On travel time, Mills runs shorter than 92% of counties in Iowa.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Mills County, Iowa
| Traffic | vehicles per day6,248 |
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| Trucks | 16.7% |
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| Average travel time | 45.0 min |
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| Drivers’ average age | 48.9 yrs |
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| Drivers’ average income | $78,796 |
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Highways carry a significant share of travel in Mills County, Iowa: 45% of all vehicle-miles. The average highway carries 6,248 vehicles per day, 201% more than the average non-highway road in the same area, which carries 2,077 vehicles per day.
With 18% of the road miles (46 miles in 95 segments), highways punch above their length, carrying 330,126 vehicle-miles traveled per day (≈120 million per year).
52% of counties in Iowa move less traffic on their highways.
Higher highway truck share than 67% of counties in Iowa
At 16.7%, the highway truck share matches the state average for similar road classifications. The highway traffic mix is typical for Iowa: neither freight- nor commuter-dominated.
67% of counties in Iowa see a lower highway truck share than Mills's 16.7%. By raw truck volume, Mills carries more highway trucks than 65% of counties in Iowa.

Non-highway Traffic in Mills County, Iowa
| Traffic | vehicles per day2,077 |
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| Trucks | 7.3% |
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| Average travel time | 29.6 min |
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| Drivers’ average age | 51.1 yrs |
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| Drivers’ average income | $84,139 |
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A little more than half of the driving in Mills County, Iowa happens on local roads: 55% of all vehicle-miles. A typical local road sees 2,077 vehicles per day.
Local roads make up 82% of the monitored road miles (209 miles in 2,534 segments) but carry less than their share of travel: 410,018 vehicle-miles traveled per day (≈150 million per year). The truck share on non-highway roads is 7.3%.
Drivers from higher-income areas than 85% of counties in Iowa
The concentration of trucks on non-highway roads is 56% lower than on highways.
85% of counties in Iowa see lower average driver income among trip origins than Mills. The driver population here skews older than 51% of counties in Iowa.