
Total Traffic Volume & Performance in Starr County, Texas
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day6,806 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 8.2% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 29.6 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. | 13.2% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 41.1 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $45,859 |
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Our data shows 6,806 vehicles per day on the average road in Starr County, Texas, and 1,084,406 vehicle-miles traveled per day (≈396 million per year) across its 276 miles of monitored roads. Trucks are a smaller part of the mix than across Texas: 8.2% against 9.8%.
Shorter trips than 97% of counties in Texas
At 6,806 vehicles per day, the average road in Starr tracks closely with the state average of 6,895 vehicles per day. Across the whole network, that travel is about 0.1% of Texas's statewide total. Starr carries more traffic than 88% of counties in Texas.
The average trip takes 29.6 minutes, 9% lower than the state level. 97% of counties in Texas have a longer average travel time than Starr's 29.6 minutes.
The congestion ratio of 13.2% is 19% lower, pointing to smoother traffic flow than the state level - crucial for traffic control improvement and logistics planning.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Starr County, Texas
| Traffic | vehicles per day19,438 |
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| Trucks | 8.6% |
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| Average travel time | 34.7 min |
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| Congestion ratio | 28.0% |
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| Drivers’ average age | 41.2 yrs |
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| Drivers’ average income | $46,117 |
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Most travel in Starr County, Texas happens on highways, 72% of all vehicle-miles. The average highway carries 19,438 vehicles per day, 793% more than the average non-highway road in the same area, which carries 2,176 vehicles per day.
That comes from just 21% of the monitored road miles: 58 miles in 622 segments, carrying 778,195 vehicle-miles traveled per day (≈284 million per year).
By highway travel volume, Starr outranks 61% of counties in Texas.
Lower highway truck share than 98% of counties in Texas
Highway truck concentration here runs 37% lower than the state average, at 8.6%. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.
98% of counties in Texas see a higher highway truck share than Starr's 8.6%. 51% of counties in Texas see more highway trucks per day than Starr's roughly 1,679.

Non-highway Traffic in Starr County, Texas
| Traffic | vehicles per day2,176 |
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| Trucks | 7.2% |
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| Average travel time | 27.7 min |
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| Congestion ratio | 7.8% |
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| Drivers’ average age | 39.9 yrs |
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| Drivers’ average income | $45,154 |
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At 28% of vehicle-miles, local roads carry a smaller share of the traffic in Starr County, Texas than highways. On the average non-highway road, that comes to 2,176 vehicles per day.
Spread over 218 miles and 1,697 segments, 79% of the road network, local roads carry a lighter load per mile: 306,211 vehicle-miles traveled per day (≈112 million per year). Trucks make up 7.2% of non-highway traffic, about 1 in 14 vehicles.
Drivers from lower-income areas than 98% of counties in Texas
Non-highway roads carry a truck concentration that's 17% lower than the highway network.
At 51% lower than the state level, the non-highway congestion ratio of 7.8% signals easier movement on local roads.
98% of counties in Texas see higher average driver income among trip origins than Starr. Starr's median driver age is lower than 88% of counties in Texas.