
Total Traffic Volume & Performance in St. Landry Parish, Louisiana
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day3,847 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 12.9% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 32.7 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. | 10.5% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 46.2 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $61,487 |
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Our data shows 3,847 vehicles per day on the average road in St. Landry Parish, Louisiana, and 2,411,635 vehicle-miles traveled per day (≈880 million per year) across its 618 miles of monitored roads. Trucks are 12.9% of traffic, more than the 11.2% across Louisiana.
Congestion 39% below the Louisiana average
St. Landry's average daily traffic volume is 37% lower than the state average - 3,847 vehicles per day against 6,061 - suggesting less traffic load per road - lighter roads for freight, but less passing trade for roadside retail. Across the whole network, that travel is about 2.0% of Louisiana's statewide total. St. Landry carries more traffic than 59% of counties in Louisiana.
At 32.7 minutes, the average travel time matches the state level closely. Its average travel time of 32.7 minutes is shorter than 51% of counties in Louisiana.
The congestion ratio of 10.5% is 39% lower, pointing to smoother traffic flow than the state level - travel times are easy to plan around for scheduled deliveries.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in St. Landry Parish, Louisiana
| Traffic | vehicles per day9,706 |
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| Trucks | 16.6% |
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| Average travel time | 40.9 min |
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| Congestion ratio | 20.5% |
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| Drivers’ average age | 46.0 yrs |
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| Drivers’ average income | $62,121 |
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Highways carry more than half of all travel in St. Landry Parish, Louisiana (61% of vehicle-miles). The average highway carries 9,706 vehicles per day, 237% more than the average non-highway road in the same area, which carries 2,880 vehicles per day.
With 24% of the road miles (151 miles in 743 segments), highways punch above their length, carrying 1,467,398 vehicle-miles traveled per day (≈536 million per year).
75% of counties in Louisiana move less traffic on their highways.
A typical mix of freight and passenger traffic
At 16.6%, the highway truck share matches the state average for similar road classifications. The highway traffic mix is typical for Louisiana: neither freight- nor commuter-dominated.
St. Landry's highway truck share (16.6%) is higher than 54% of counties in Louisiana. By raw truck volume, St. Landry carries fewer highway trucks than 54% of counties in Louisiana.

Non-highway Traffic in St. Landry Parish, Louisiana
| Traffic | vehicles per day2,880 |
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| Trucks | 7.1% |
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| Average travel time | 31.3 min |
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| Congestion ratio | 8.9% |
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| Drivers’ average age | 46.7 yrs |
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| Drivers’ average income | $60,797 |
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Local roads carry a significant share of travel in St. Landry Parish, Louisiana: 39% of all vehicle-miles. On the average non-highway road, that comes to 2,880 vehicles per day.
Spread over 467 miles and 4,501 segments, 76% of the road network, local roads carry a lighter load per mile: 944,237 vehicle-miles traveled per day (≈345 million per year). About 1 in 14 vehicles on non-highway roads is a truck (7.1%).
Local congestion 48% below the Louisiana average
Compared to highways, non-highway routes see 57% fewer trucks by share.
Non-highway congestion (8.9%) runs 48% lower than the state average, pointing to smoother local traffic flow.
Trip origins here have lower average income than 59% of counties in Louisiana. The driver population here skews older than 62% of counties in Louisiana.