
Total Traffic Volume & Performance in Zapata County, Texas
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day3,286 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 13.3% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 33.0 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. | 8.1% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 41.3 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $46,940 |
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Our data shows 3,286 vehicles per day on the average road in Zapata County, Texas, and 292,012 vehicle-miles traveled per day (≈107 million per year) across its 120 miles of monitored roads. At 13.3%, the truck share runs above the 9.8% across Texas: about 1 in 8 vehicles.
Traffic 52% below the Texas average
At 3,286 vehicles per day, the average monitored road in Zapata carries 52% less traffic than the state average of 6,895, suggesting less demand on each road - very light roads: easy truck access, but little passing trade for roadside retail. Across the whole network, that travel is less than 0.1% of Texas's statewide total. By volume, Zapata's 3,286 vehicles per day outpaces 57% of counties in Texas.
At 33.0 minutes, the average travel time matches the state level closely. 66% of counties in Texas have a longer average travel time than Zapata's 33.0 minutes.
At 50% lower than the state level, the 8.1% congestion ratio signals smoother traffic flow - free-flowing roads make scheduled deliveries highly predictable.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Zapata County, Texas
| Traffic | vehicles per day5,399 |
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| Trucks | 14.0% |
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| Average travel time | 35.8 min |
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| Congestion ratio | 9.3% |
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| Drivers’ average age | 41.4 yrs |
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| Drivers’ average income | $47,905 |
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Highways carry the vast majority of travel in Zapata County, Texas, 85% of all vehicle-miles. The average highway carries 5,399 vehicles per day, 293% more than the average non-highway road in the same area, which carries 1,372 vehicles per day.
Highways make up 49% of the monitored road miles (59 miles, 489 segments), so they carry more than their share: 247,415 vehicle-miles traveled per day (≈90.3 million per year).
Fewer highway trucks than 76% of counties in Texas
At 14.0%, the highway truck share matches the state average for similar road classifications. The highway traffic mix is typical for Texas: neither freight- nor commuter-dominated.
Zapata's highway truck share (14.0%) is lower than 59% of counties in Texas. Zapata's highway truck count is lower than 76% of counties in Texas, at roughly 757 trucks per day.

Non-highway Traffic in Zapata County, Texas
| Traffic | vehicles per day1,372 |
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| Trucks | 9.5% |
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| Average travel time | 30.4 min |
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| Congestion ratio | 7.1% |
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| Drivers’ average age | 41.1 yrs |
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| Drivers’ average income | $44,148 |
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Local roads carry a smaller share of travel in Zapata County, Texas, 15% of vehicle-miles; most driving happens on highways. A typical local road sees 1,372 vehicles per day.
Spread over 61 miles and 540 segments, 51% of the road network, local roads carry a lighter load per mile: 44,598 vehicle-miles traveled per day (≈16.3 million per year). Trucks make up 9.5% of non-highway traffic, about 1 in 11 vehicles.
Drivers from lower-income areas than 98% of counties in Texas
Non-highway roads carry a truck concentration that's 32% lower than the highway network.
Non-highway congestion (7.1%) runs 56% lower than the state average, pointing to smoother local traffic flow.
Trip origins here have lower average income than 98% of counties in Texas. 86% of counties in Texas have an older driver population than Zapata.