
Total Traffic Volume & Performance in Sterling County, Texas
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day2,443 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 15.9% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 51.9 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. | 5.2% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 42.7 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $80,387 |
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A typical monitored road in Sterling County, Texas sees 2,443 vehicles per day, while its 144 miles of monitored roads together handle 244,110 vehicle-miles traveled per day (≈89.1 million per year). About 1 in 6 vehicles is a truck, well above the 9.8% across Texas - a freight-heavy mix.
Longer trips than 95% of counties in Texas
At 2,443 vehicles per day, the average monitored road in Sterling carries 65% less traffic than the state average of 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. 62% of counties in Texas see more traffic than Sterling's 2,443 vehicles per day.
At 51.9 minutes, the average travel time is 59% higher than the state level. On travel time, Sterling runs longer than 95% of counties in Texas.
The congestion ratio of 5.2% is 68% lower, pointing to smoother traffic flow than the state level - free-flowing roads make scheduled deliveries highly predictable.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Sterling County, Texas
| Traffic | vehicles per day4,332 |
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| Trucks | 16.0% |
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| Average travel time | 58.3 min |
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| Congestion ratio | 8.0% |
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| Drivers’ average age | 42.7 yrs |
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| Drivers’ average income | $80,643 |
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Highways carry the vast majority of travel in Sterling County, Texas, 90% of all vehicle-miles. The average highway carries 4,332 vehicles per day, 571% more than the average non-highway road in the same area, which carries 646 vehicles per day.
Highways make up 54% of the monitored road miles (77 miles, 155 segments), so they carry more than their share: 218,622 vehicle-miles traveled per day (≈79.8 million per year).
Fewer highway trucks than 85% of counties in Texas
At 16.0%, highway truck share is 16% higher than the state average. Highways here lean toward freight, so highway access is a real asset for logistics operators.
By truck concentration, highways here outrank 52% of counties in Texas. Sterling's highway truck count is lower than 85% of counties in Texas, at roughly 693 trucks per day.

Non-highway Traffic in Sterling County, Texas
| Traffic | vehicles per day646 |
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| Trucks | 15.1% |
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| Average travel time | 45.8 min |
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| Congestion ratio | 2.6% |
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| Drivers’ average age | 45.6 yrs |
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| Drivers’ average income | $77,789 |
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Only a small share of travel in Sterling County, Texas happens on local roads: 10% of vehicle-miles. On the average non-highway road, that comes to 646 vehicles per day.
Spread over 66 miles and 163 segments, 46% of the road network, local roads carry a lighter load per mile: 25,488 vehicle-miles traveled per day (≈9.3 million per year). The truck share on non-highway roads is 15.1%.
Local congestion 84% below the Texas average
Non-highway roads carry a truck concentration that's 6% lower than the highway network.
Non-highway congestion (2.6%) runs 84% lower than the state average, pointing to smoother local traffic flow.
Trip origins here have higher average income than 80% of counties in Texas. The driver population here skews younger than 74% of counties in Texas.