
Total Traffic Volume & Performance in Dimmit County, Texas
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day3,046 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 16.4% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 36.7 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. | 7.9% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 39.6 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $52,010 |
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The average monitored road in Dimmit County, Texas carries 3,046 vehicles per day. Across its 251 miles of monitored roads, that adds up to 601,011 vehicle-miles traveled per day (≈219 million per year). About 1 in 6 vehicles is a truck, well above the 9.8% across Texas - a freight-heavy mix.
Traffic 56% below the Texas average
Dimmit's average daily traffic volume is 56% lower than the state average - 3,046 vehicles per day against 6,895 - suggesting less traffic load per road - very light roads: easy truck access, but little passing trade for roadside retail. In total volume terms, its road network carries less than 0.1% of Texas's statewide total of vehicle-miles. 51% of counties in Texas see less traffic than Dimmit's 3,046 vehicles per day.
Journey times run 13% higher than the state level, at 36.7 minutes on average. Its average travel time of 36.7 minutes is longer than 64% of counties in Texas.
At 51% lower than the state level, the 7.9% congestion ratio signals smoother traffic flow - free-flowing roads make scheduled deliveries highly predictable.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Dimmit County, Texas
| Traffic | vehicles per day6,742 |
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| Trucks | 19.2% |
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| Average travel time | 38.3 min |
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| Congestion ratio | 12.4% |
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| Drivers’ average age | 39.6 yrs |
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| Drivers’ average income | $53,470 |
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Highways carry about half of all travel in Dimmit County, Texas, 53% of vehicle-miles. The average highway carries 6,742 vehicles per day, 337% more than the average non-highway road in the same area, which carries 1,545 vehicles per day.
With 23% of the road miles (58 miles in 407 segments), highways punch above their length, carrying 318,058 vehicle-miles traveled per day (≈116 million per year).
Freight-heavy highways
Highway truck concentration here runs 39% higher than the state average, at 19.2%. Highways here lean toward freight, so highway access is a real asset for logistics operators.
69% of counties in Texas see a lower highway truck share than Dimmit's 19.2%. By raw truck volume, Dimmit carries fewer highway trucks than 57% of counties in Texas.

Non-highway Traffic in Dimmit County, Texas
| Traffic | vehicles per day1,545 |
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| Trucks | 13.3% |
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| Average travel time | 36.0 min |
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| Congestion ratio | 6.1% |
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| Drivers’ average age | 39.5 yrs |
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| Drivers’ average income | $50,486 |
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Local roads carry about half of all travel in Dimmit County, Texas, 47% of vehicle-miles. On the average non-highway road, that comes to 1,545 vehicles per day.
Spread over 193 miles and 1,002 segments, 77% of the road network, local roads carry a lighter load per mile: 282,953 vehicle-miles traveled per day (≈103 million per year). About 1 in 8 vehicles on non-highway roads is a truck (13.3%).
Younger drivers than 96% of counties in Texas
Non-highway roads carry a truck concentration that's 31% lower than the highway network.
At 62% lower than the state level, the non-highway congestion ratio of 6.1% signals easier movement on local roads.
95% of counties in Texas see higher average driver income among trip origins than Dimmit. 96% of counties in Texas have an older driver population than Dimmit.