
Total Traffic Volume & Performance in Polk County, Wisconsin
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day2,295 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 9.5% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 34.1 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. | 8.3% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 51.6 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $75,803 |
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Our data shows 2,295 vehicles per day on the average road in Polk County, Wisconsin, and 915,297 vehicle-miles traveled per day (≈334 million per year) across its 495 miles of monitored roads. Trucks are 9.5% of traffic, close to the 10.2% across Wisconsin.
Traffic 40% below the Wisconsin average
Polk sees 40% lower average daily traffic volume than the state average (2,295 vehicles per day against 3,802), suggesting less demand on each road - lighter roads for freight, but less passing trade for roadside retail. Network-wide, Polk accounts for about 0.7% of Wisconsin's statewide total of vehicle-miles. By volume, Polk's 2,295 vehicles per day trails 52% of counties in Wisconsin.
Journey times run 6% higher than the state level, at 34.1 minutes on average. On travel time, Polk runs longer than 69% of counties in Wisconsin.
The congestion ratio of 8.3% is 34% lower, pointing to smoother traffic flow than the state level - fewer delays make delivery windows more reliable.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Polk County, Wisconsin
| Traffic | vehicles per day6,119 |
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| Trucks | 13.0% |
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| Average travel time | 42.6 min |
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| Congestion ratio | 13.6% |
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| Drivers’ average age | 51.2 yrs |
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| Drivers’ average income | $75,959 |
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At 28% of vehicle-miles, highways carry a smaller share of the traffic in Polk County, Wisconsin than local roads. The average highway carries 6,119 vehicles per day, 223% more than the average non-highway road in the same area, which carries 1,894 vehicles per day.
Yet highways are only 9% of the road network, 43 miles in 383 segments, so each mile of them is 3.2 times as busy as the average road mile.
Fewer highway trucks than 72% of counties in Wisconsin
At 13.0%, highway truck share is 11% lower than the state average. The highway traffic mix is typical for Wisconsin: neither freight- nor commuter-dominated.
By truck concentration, highways here trail 67% of counties in Wisconsin. By raw truck volume, Polk carries fewer highway trucks than 72% of counties in Wisconsin.

Non-highway Traffic in Polk County, Wisconsin
| Traffic | vehicles per day1,894 |
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| Trucks | 8.1% |
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| Average travel time | 33.2 min |
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| Congestion ratio | 7.7% |
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| Drivers’ average age | 51.9 yrs |
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| Drivers’ average income | $75,763 |
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Most travel in Polk County, Wisconsin happens on local roads, 72% of all vehicle-miles. On the average non-highway road, that comes to 1,894 vehicles per day.
Spread over 452 miles and 3,646 segments, 91% of the road network, local roads carry a lighter load per mile: 657,385 vehicle-miles traveled per day (≈240 million per year). About 1 in 12 vehicles on non-highway roads is a truck (8.1%).
Local congestion 36% below the Wisconsin average
The concentration of trucks on non-highway roads is 38% lower than on highways.
Non-highway congestion (7.7%) runs 36% lower than the state average, pointing to smoother local traffic flow.
Trip origins here have higher average income than 56% of counties in Wisconsin. The driver population here skews older than 65% of counties in Wisconsin.