
Total Traffic Volume & Performance in Washington County, Utah
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day9,067 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 9.1% |
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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. | 19.5% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 46.6 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $80,771 |
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The average monitored road in Washington County, Utah carries 9,067 vehicles per day. Across its 607 miles of monitored roads, that adds up to 5,411,523 vehicle-miles traveled per day (≈2.0 billion per year). Trucks are 9.1% of traffic, close to the 8.9% across Utah.
Busier roads than 82% of counties in Utah
Washington's average daily traffic volume is 11% lower than the state average - 9,067 vehicles per day against 10,198 - a factor worth weighing in site selection and logistics planning. Across the whole network, that travel is about 6.2% of Utah's statewide total. 82% of counties in Utah see less traffic than Washington's 9,067 vehicles per day.
At 32.6 minutes, the average travel time matches the state level closely. Its average travel time of 32.6 minutes is longer than 50% of counties in Utah.
The congestion ratio of 19.5% runs slightly lower than the state level (8% lower).
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Washington County, Utah
| Traffic | vehicles per day21,652 |
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| Trucks | 13.1% |
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| Average travel time | 36.9 min |
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| Congestion ratio | 30.4% |
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| Drivers’ average age | 46.8 yrs |
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| Drivers’ average income | $77,488 |
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Travel in Washington County, Utah splits roughly evenly, with about half of it (52% of vehicle-miles) on highways. The average highway carries 21,652 vehicles per day, 170% more than the average non-highway road in the same area, which carries 8,030 vehicles per day.
Highways make up 26% of the monitored road miles (157 miles, 663 segments), so they carry more than their share: 2,827,217 vehicle-miles traveled per day (≈1.0 billion per year).
By highway travel volume, that ranks Washington in the top 5 counties in Utah.
More highway trucks than 79% of counties in Utah
Highway truck concentration here runs 6% higher than the state average, at 13.1%. The highway traffic mix is typical for Utah: neither freight- nor commuter-dominated.
54% of counties in Utah see a higher highway truck share than Washington's 13.1%. 79% of counties in Utah see fewer highway trucks per day than Washington's roughly 2,836.

Non-highway Traffic in Washington County, Utah
| Traffic | vehicles per day8,030 |
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| Trucks | 4.6% |
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| Average travel time | 32.3 min |
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| Congestion ratio | 18.6% |
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| Drivers’ average age | 46.5 yrs |
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| Drivers’ average income | $82,329 |
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Travel in Washington County, Utah splits roughly evenly, with about half of it (48% of vehicle-miles) on local roads. On the average non-highway road, that comes to 8,030 vehicles per day.
Local roads make up 74% of the monitored road miles (450 miles in 8,047 segments) but carry less than their share of travel: 2,584,306 vehicle-miles traveled per day (≈943 million per year). Trucks make up 4.6% of non-highway traffic, about 1 in 22 vehicles.
Local roads carry 65% fewer trucks by share than highways
The concentration of trucks on non-highway roads is 65% lower than on highways.
At 18% lower than the state level, the non-highway congestion ratio of 18.6% signals easier movement on local roads.
Trip origins here have higher average income than 54% of counties in Utah. Washington's median driver age is higher than 64% of counties in Utah.