
Total Traffic Volume & Performance in Sauk County, Wisconsin
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day3,594 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 13.4% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 32.6 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. | 11.2% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 50.3 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $75,779 |
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A typical monitored road in Sauk County, Wisconsin sees 3,594 vehicles per day, while its 561 miles of monitored roads together handle 1,926,837 vehicle-miles traveled per day (≈703 million per year). At 13.4%, the truck share runs above the 10.2% across Wisconsin: about 1 in 7 vehicles.
Busier roads than 79% of counties in Wisconsin
Sauk's average daily traffic volume is 5% lower than the state average - 3,594 vehicles per day against 3,802. In total volume terms, its road network carries about 1.4% of Wisconsin's statewide total of vehicle-miles. Sauk carries more traffic than 79% of counties in Wisconsin.
The average trip takes 32.6 minutes, on par with the state level. Its average travel time of 32.6 minutes is longer than 51% of counties in Wisconsin.
The congestion ratio of 11.2% runs slightly lower than the state level (11% lower) - crucial for traffic control improvement and logistics planning.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Sauk County, Wisconsin
| Traffic | vehicles per day11,759 |
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| Trucks | 19.2% |
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| Average travel time | 46.2 min |
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| Congestion ratio | 23.6% |
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| Drivers’ average age | 50.2 yrs |
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| Drivers’ average income | $75,916 |
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Highways carry about half of all travel in Sauk County, Wisconsin, 48% of vehicle-miles. The average highway carries 11,759 vehicles per day, 270% more than the average non-highway road in the same area, which carries 3,176 vehicles per day.
Yet highways are only 13% of the road network, 74 miles in 295 segments, so each mile of them is 3.6 times as busy as the average road mile.
That is more highway travel volume than 54% of counties in Wisconsin.
Higher highway truck share than 88% of counties in Wisconsin
The concentration of trucks on highways (19.2%) is 31% higher than the state average for similar road classifications. Highways here lean toward freight, so highway access is a real asset for logistics operators.
By truck concentration, highways here outrank 88% of counties in Wisconsin. 77% of counties in Wisconsin see fewer highway trucks per day than Sauk's roughly 2,264.

Non-highway Traffic in Sauk County, Wisconsin
| Traffic | vehicles per day3,176 |
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| Trucks | 8.0% |
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| Average travel time | 31.9 min |
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| Congestion ratio | 10.6% |
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| Drivers’ average age | 50.3 yrs |
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| Drivers’ average income | $75,724 |
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Local roads carry about half of all travel in Sauk County, Wisconsin, 52% of vehicle-miles. The average non-highway road carries 3,176 vehicles per day.
Spread over 486 miles and 5,761 segments, 87% of the road network, local roads carry a lighter load per mile: 1,005,561 vehicle-miles traveled per day (≈367 million per year). Trucks make up 8.0% of non-highway traffic, about 1 in 12 vehicles.
Local roads carry 58% fewer trucks by share than highways
Compared to highways, non-highway routes see 58% fewer trucks by share.
Non-highway congestion (10.6%) runs slightly lower than the state level (13% lower).
55% of counties in Wisconsin see lower average driver income among trip origins than Sauk. The driver population here skews younger than 51% of counties in Wisconsin.