
Total Traffic Volume & Performance in St. John the Baptist Parish, Louisiana
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day8,413 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 17.4% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 33.6 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. | 16.4% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 45.2 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $78,143 |
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The average monitored road in St. John the Baptist Parish, Louisiana carries 8,413 vehicles per day. Across its 187 miles of monitored roads, that adds up to 1,742,098 vehicle-miles traveled per day (≈636 million per year). Freight weighs heavily here: trucks are 17.4% of traffic, against 11.2% across Louisiana.
Busier roads than 95% of counties in Louisiana
St. John the Baptist's average daily traffic volume is 39% higher than the state average - 8,413 vehicles per day against 6,061 - suggesting more traffic load per road - a busier backdrop for retail sites, at the cost of slower access. Across the whole network, that travel is about 1.4% of Louisiana's statewide total. By volume, St. John the Baptist's 8,413 vehicles per day outpaces 95% of counties in Louisiana.
Journey times run 6% higher than the state level, at 33.6 minutes on average. On travel time, St. John the Baptist runs longer than 63% of counties in Louisiana.
Congestion here (16.4%) closely tracks the state level.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in St. John the Baptist Parish, Louisiana
| Traffic | vehicles per day18,375 |
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| Trucks | 18.6% |
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| Average travel time | 36.1 min |
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| Congestion ratio | 28.9% |
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| Drivers’ average age | 45.1 yrs |
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| Drivers’ average income | $78,209 |
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Highways carry the vast majority of travel in St. John the Baptist Parish, Louisiana, 83% of all vehicle-miles. The average highway carries 18,375 vehicles per day, 484% more than the average non-highway road in the same area, which carries 3,146 vehicles per day.
Highways make up 50% of the monitored road miles (93 miles, 798 segments), so they carry more than their share: 1,443,574 vehicle-miles traveled per day (≈527 million per year).
That is more highway travel volume than 71% of counties in Louisiana.
Higher highway truck share than 71% of counties in Louisiana
At 18.6%, 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.
71% of counties in Louisiana see a lower highway truck share than St. John the Baptist's 18.6%. St. John the Baptist's highway truck count is higher than 71% of counties in Louisiana, at roughly 3,412 trucks per day.

Non-highway Traffic in St. John the Baptist Parish, Louisiana
| Traffic | vehicles per day3,146 |
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| Trucks | 11.7% |
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| Average travel time | 32.3 min |
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| Congestion ratio | 9.9% |
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| Drivers’ average age | 46.3 yrs |
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| Drivers’ average income | $77,851 |
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Local roads carry a smaller share of travel in St. John the Baptist Parish, Louisiana, 17% of vehicle-miles; most driving happens on highways. A typical local road sees 3,146 vehicles per day.
Spread over 93 miles and 1,509 segments, 50% of the road network, local roads carry a lighter load per mile: 298,524 vehicle-miles traveled per day (≈109 million per year). The truck share on non-highway roads is 11.7%.
Drivers from higher-income areas than 76% of counties in Louisiana
Compared to highways, non-highway routes see 37% fewer trucks by share.
The non-highway congestion ratio of 9.9% is 41% lower than the state level, suggesting more efficient local mobility than the state average.
Trip origins here have higher average income than 76% of counties in Louisiana. 57% of counties in Louisiana have an older driver population than St. John the Baptist.