
Total Traffic Volume & Performance in Portage County, Wisconsin
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day2,607 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 10.3% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 33.9 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. | 10.8% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 46.5 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $78,583 |
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The average monitored road in Portage County, Wisconsin carries 2,607 vehicles per day. Across its 662 miles of monitored roads, that adds up to 1,958,288 vehicle-miles traveled per day (≈715 million per year). Trucks are 10.3% of traffic, close to the 10.2% across Wisconsin.
Longer trips than 68% of counties in Wisconsin
Portage's average daily traffic volume is 31% lower than the state average - 2,607 vehicles per day against 3,802 - suggesting less traffic load per road - less drive-by exposure for retail, but easier access for deliveries. Across the whole network, that travel is about 1.5% of Wisconsin's statewide total. By volume, Portage's 2,607 vehicles per day outpaces 62% of counties in Wisconsin.
Journey times run 5% higher than the state level, at 33.9 minutes on average. 68% of counties in Wisconsin have a shorter average travel time than Portage's 33.9 minutes.
Congestion is somewhat lower than the state level, at a ratio of 10.8% (14% lower) - relevant for traffic control and delivery planning.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Portage County, Wisconsin
| Traffic | vehicles per day8,266 |
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| Trucks | 13.4% |
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| Average travel time | 44.2 min |
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| Congestion ratio | 17.6% |
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| Drivers’ average age | 47.9 yrs |
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| Drivers’ average income | $78,879 |
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Travel in Portage County, Wisconsin splits roughly evenly, with about half of it (52% of vehicle-miles) on highways. The average highway carries 8,266 vehicles per day, 259% more than the average non-highway road in the same area, which carries 2,301 vehicles per day.
With 20% of the road miles (129 miles in 303 segments), highways punch above their length, carrying 1,010,615 vehicle-miles traveled per day (≈369 million per year).
That is more highway travel volume than 61% of counties in Wisconsin.
A typical mix of freight and passenger traffic
At 13.4%, highway truck share is 9% lower than the state average. The highway traffic mix is typical for Wisconsin: neither freight- nor commuter-dominated.
By truck concentration, highways here trail 58% of counties in Wisconsin. By raw truck volume, Portage carries fewer highway trucks than 54% of counties in Wisconsin.

Non-highway Traffic in Portage County, Wisconsin
| Traffic | vehicles per day2,301 |
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| Trucks | 7.0% |
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| Average travel time | 33.3 min |
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| Congestion ratio | 10.4% |
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| Drivers’ average age | 45.7 yrs |
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| Drivers’ average income | $78,414 |
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Travel in Portage County, Wisconsin splits roughly evenly, with about half of it (48% of vehicle-miles) on local roads. On the average non-highway road, that comes to 2,301 vehicles per day.
Spread over 532 miles and 5,602 segments, 80% of the road network, local roads carry a lighter load per mile: 947,672 vehicle-miles traveled per day (≈346 million per year). Trucks make up 7.0% of non-highway traffic, about 1 in 14 vehicles.
Younger drivers than 85% of counties in Wisconsin
Compared to highways, non-highway routes see 48% fewer trucks by share.
Non-highway congestion (10.4%) runs slightly lower than the state level (15% lower).
Trip origins here have higher average income than 65% of counties in Wisconsin. Portage's median driver age is lower than 85% of counties in Wisconsin.