
Total Traffic Volume & Performance in King County, Texas
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day1,195 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 16.1% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 74.4 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. | 3.1% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 48.5 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $66,218 |
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The average monitored road in King County, Texas carries 1,195 vehicles per day. Across its 75 miles of monitored roads, that adds up to 96,977 vehicle-miles traveled per day (≈35.4 million per year). About 1 in 6 vehicles is a truck, well above the 9.8% across Texas - a freight-heavy mix.
Trips 128% longer than the Texas average
King sees 83% lower average daily traffic volume than the state average (1,195 vehicles per day against 6,895), suggesting less demand on each road - quiet roads that suit freight movement more than drive-by retail. Across the whole network, that travel is less than 0.1% of Texas's statewide total. By volume, King's 1,195 vehicles per day trails 91% of counties in Texas.
At 74.4 minutes, the average travel time is 128% higher than the state level. Its average travel time of 74.4 minutes is longer than 100% of counties in Texas.
At 81% lower than the state level, the 3.1% congestion ratio signals smoother traffic flow - free-flowing roads make scheduled deliveries highly predictable.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in King County, Texas
| Traffic | vehicles per day1,668 |
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| Trucks | 18.6% |
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| Average travel time | 108.0 min |
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| Congestion ratio | 3.9% |
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| Drivers’ average age | 53.5 yrs |
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| Drivers’ average income | $70,010 |
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A little more than half of the driving in King County, Texas happens on highways: 65% of all vehicle-miles. The average highway carries 1,668 vehicles per day, 108% more than the average non-highway road in the same area, which carries 803 vehicles per day.
Highways make up 48% of the monitored road miles (36 miles, 116 segments), so they carry more than their share: 63,464 vehicle-miles traveled per day (≈23.2 million per year).
Fewer highway trucks than 94% of counties in Texas
Highway truck concentration here runs 35% higher than the state average, at 18.6%. Highways here lean toward freight, so highway access is a real asset for logistics operators.
King's highway truck share (18.6%) is higher than 64% of counties in Texas. By raw truck volume, King carries fewer highway trucks than 94% of counties in Texas.

Non-highway Traffic in King County, Texas
| Traffic | vehicles per day803 |
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| Trucks | 11.3% |
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| Average travel time | 46.5 min |
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| Congestion ratio | 2.5% |
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| Drivers’ average age | 45.7 yrs |
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| Drivers’ average income | $65,492 |
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Local roads carry a significant share of travel in King County, Texas: 35% of all vehicle-miles. The average non-highway road carries 803 vehicles per day.
Spread over 39 miles and 140 segments, 52% of the road network, local roads carry a lighter load per mile: 33,512 vehicle-miles traveled per day (≈12.2 million per year). Trucks make up 11.3% of non-highway traffic, about 1 in 9 vehicles.
Local congestion 85% below the Texas average
Compared to highways, non-highway routes see 39% fewer trucks by share.
At 85% lower than the state level, the non-highway congestion ratio of 2.5% signals easier movement on local roads.
Trip origins here have lower average income than 63% of counties in Texas. The driver population here skews older than 74% of counties in Texas.