
Total Traffic Volume & Performance in Poweshiek County, Iowa
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day2,008 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 20.4% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 31.3 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. | 6.7% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 45.8 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $69,520 |
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A typical monitored road in Poweshiek County, Iowa sees 2,008 vehicles per day, while its 287 miles of monitored roads together handle 768,562 vehicle-miles traveled per day (≈281 million per year). About 1 in 5 vehicles is a truck, well above the 11.0% across Iowa - a freight-heavy mix.
Shorter trips than 83% of counties in Iowa
Poweshiek sees 34% lower average daily traffic volume than the state average (2,008 vehicles per day against 3,042), suggesting less demand on each road - less drive-by exposure for retail, but easier access for deliveries. Network-wide, Poweshiek accounts for about 0.9% of Iowa's statewide total of vehicle-miles. Poweshiek carries more traffic than 65% of counties in Iowa.
The average trip takes 31.3 minutes, 5% lower than the state level. Its average travel time of 31.3 minutes is shorter than 83% of counties in Iowa.
The congestion ratio of 6.7% is 42% 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 Poweshiek County, Iowa
| Traffic | vehicles per day8,549 |
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| Trucks | 27.4% |
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| Average travel time | 62.4 min |
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| Congestion ratio | 19.4% |
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| Drivers’ average age | 43.8 yrs |
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| Drivers’ average income | $79,252 |
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Highways carry more than half of all travel in Poweshiek County, Iowa (62% of vehicle-miles). The average highway carries 8,549 vehicles per day, 396% more than the average non-highway road in the same area, which carries 1,724 vehicles per day.
Yet highways are only 17% of the road network, 50 miles in 75 segments, so each mile of them is 3.6 times as busy as the average road mile.
That is more highway travel volume than 71% of counties in Iowa.
Higher highway truck share than 99% of counties in Iowa
At 27.4%, highway truck share is 70% higher than the state average. That marks Poweshiek as a major freight corridor, where highway access is what logistics operators compete on.
By truck concentration, highways here outrank 99% of counties in Iowa. 96% of counties in Iowa see fewer highway trucks per day than Poweshiek's roughly 2,338.

Non-highway Traffic in Poweshiek County, Iowa
| Traffic | vehicles per day1,724 |
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| Trucks | 9.0% |
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| Average travel time | 30.0 min |
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| Congestion ratio | 6.1% |
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| Drivers’ average age | 48.7 yrs |
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| Drivers’ average income | $65,826 |
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A significant share of driving in Poweshiek County, Iowa, 38% of vehicle-miles, happens on local roads. On the average non-highway road, that comes to 1,724 vehicles per day.
Spread over 237 miles and 1,726 segments, 83% of the road network, local roads carry a lighter load per mile: 291,262 vehicle-miles traveled per day (≈106 million per year). About 1 in 11 vehicles on non-highway roads is a truck (9.0%).
Younger drivers than 88% of counties in Iowa
Non-highway roads carry a truck concentration that's 67% lower than the highway network.
Non-highway congestion (6.1%) runs 45% lower than the state average, pointing to smoother local traffic flow.
72% of counties in Iowa see higher average driver income among trip origins than Poweshiek. Poweshiek's median driver age is lower than 88% of counties in Iowa.