
Total Traffic Volume & Performance in Skagit County, Washington
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day5,307 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 7.6% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 31.9 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. | 17.0% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 47.2 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $86,285 |
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The average monitored road in Skagit County, Washington carries 5,307 vehicles per day. Across its 613 miles of monitored roads, that adds up to 3,814,193 vehicle-miles traveled per day (≈1.4 billion per year). Trucks are 7.6% of traffic, close to the 7.1% across Washington.
Shorter trips than 79% of counties in Washington
Skagit sees 28% lower average daily traffic volume than the state average (5,307 vehicles per day against 7,322), suggesting less demand on each road - less drive-by exposure for retail, but easier access for deliveries. In total volume terms, its road network carries about 2.5% of Washington's statewide total of vehicle-miles. By volume, Skagit's 5,307 vehicles per day outpaces 71% of counties in Washington.
The average trip takes 31.9 minutes, on par with the state level. 79% of counties in Washington have a longer average travel time than Skagit's 31.9 minutes.
Congestion is somewhat lower than the state level, at a ratio of 17.0% (15% lower) - crucial for traffic control improvement and logistics planning.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Skagit County, Washington
| Traffic | vehicles per day22,672 |
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| Trucks | 9.9% |
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| Average travel time | 43.9 min |
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| Congestion ratio | 52.1% |
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| Drivers’ average age | 46.1 yrs |
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| Drivers’ average income | $87,599 |
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Travel in Skagit County, Washington splits roughly evenly, with about half of it (51% of vehicle-miles) on highways. The average highway carries 22,672 vehicles per day, 355% more than the average non-highway road in the same area, which carries 4,979 vehicles per day.
Yet highways are only 13% of the road network, 79 miles in 246 segments, so each mile of them is 3.9 times as busy as the average road mile.
By highway travel volume, Skagit outranks 66% of counties in Washington.
More highway trucks than 84% of counties in Washington
At 9.9%, the highway truck share matches the state average for similar road classifications. The highway traffic mix is typical for Washington: neither freight- nor commuter-dominated.
56% of counties in Washington see a higher highway truck share than Skagit's 9.9%. Skagit's highway truck count is higher than 84% of counties in Washington, at roughly 2,235 trucks per day.

Non-highway Traffic in Skagit County, Washington
| Traffic | vehicles per day4,979 |
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| Trucks | 5.2% |
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| Average travel time | 31.6 min |
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| Congestion ratio | 16.3% |
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| Drivers’ average age | 48.0 yrs |
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| Drivers’ average income | $85,256 |
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Travel in Skagit County, Washington splits roughly evenly, with about half of it (49% of vehicle-miles) on local roads. A typical local road sees 4,979 vehicles per day.
Local roads make up 87% of the monitored road miles (534 miles in 13,014 segments) but carry less than their share of travel: 1,873,063 vehicle-miles traveled per day (≈684 million per year). About 1 in 19 vehicles on non-highway roads is a truck (5.2%).
Drivers from higher-income areas than 74% of counties in Washington
Compared to highways, non-highway routes see 47% fewer trucks by share.
Non-highway congestion (16.3%) runs 17% lower than the state average, pointing to smoother local traffic flow.
74% of counties in Washington see lower average driver income among trip origins than Skagit. 50% of counties in Washington have a younger driver population than Skagit.