
Total Traffic Volume & Performance in Jefferson Parish, Louisiana
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day10,394 |
|---|
Trucks The percentage of the total traffic volume composed of heavy vehicles. | 6.3% |
|---|
Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 32.5 min |
|---|
Congestion ratio The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network. | 29.7% |
|---|
Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 47.1 yrs |
|---|
Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $79,588 |
|---|
A typical monitored road in Jefferson Parish, Louisiana sees 10,394 vehicles per day, while its 572 miles of monitored roads together handle 7,728,867 vehicle-miles traveled per day (≈2.8 billion per year). Cars dominate: trucks are just 6.3% of traffic, under the 11.2% across Louisiana.
Busier roads than 98% of counties in Louisiana
At 10,394 vehicles per day, the average monitored road in Jefferson carries 71% more traffic than the state average of 6,061, suggesting more demand on each road - heavy exposure for roadside retail, and tight road space for deliveries. In total volume terms, its road network carries about 6.4% of Louisiana's statewide total of vehicle-miles. By volume, Jefferson's 10,394 vehicles per day outpaces 98% of counties in Louisiana.
The average trip takes 32.5 minutes, on par with the state level. Its average travel time of 32.5 minutes is shorter than 57% of counties in Louisiana.
The congestion ratio of 29.7% is 72% higher, pointing to more pronounced congestion than the state level - peak-hour routing and delivery windows need real slack here.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Jefferson Parish, Louisiana
| Traffic | vehicles per day23,266 |
|---|
| Trucks | 8.3% |
|---|
| Average travel time | 36.1 min |
|---|
| Congestion ratio | 55.4% |
|---|
| Drivers’ average age | 46.6 yrs |
|---|
| Drivers’ average income | $79,473 |
|---|
Travel in Jefferson Parish, Louisiana splits roughly evenly, with about half of it (52% of vehicle-miles) on highways. The average highway carries 23,266 vehicles per day, 157% more than the average non-highway road in the same area, which carries 9,052 vehicles per day.
Highways make up 23% of the monitored road miles (132 miles, 1,420 segments), so they carry more than their share: 4,028,077 vehicle-miles traveled per day (≈1.5 billion per year).
No more than 2 other counties in Louisiana move more traffic on their highways.
The lowest highway truck share of any county in Louisiana
Highway truck concentration here runs 48% lower than the state average, at 8.3%. Highways here carry mainly commuter and local trips, with little through freight.
Jefferson also posts the lowest highway truck share in Louisiana - 8.3%. Jefferson's highway truck count is higher than 68% of counties in Louisiana, at roughly 1,940 trucks per day.

Non-highway Traffic in Jefferson Parish, Louisiana
| Traffic | vehicles per day9,052 |
|---|
| Trucks | 4.0% |
|---|
| Average travel time | 32.1 min |
|---|
| Congestion ratio | 27.0% |
|---|
| Drivers’ average age | 47.4 yrs |
|---|
| Drivers’ average income | $79,685 |
|---|
Travel in Jefferson Parish, Louisiana splits roughly evenly, with about half of it (48% of vehicle-miles) on local roads. On the average non-highway road, that comes to 9,052 vehicles per day.
Spread over 439 miles and 13,613 segments, 77% of the road network, local roads carry a lighter load per mile: 3,700,790 vehicle-miles traveled per day (≈1.4 billion per year). About 1 in 25 vehicles on non-highway roads is a truck (4.0%).
Drivers from higher-income areas than 81% of counties in Louisiana
Non-highway roads carry a truck concentration that's 52% lower than the highway network.
At 60% higher than the state level, the non-highway congestion ratio of 27.0% signals more friction on local roads.
Trip origins here have higher average income than 81% of counties in Louisiana. The driver population here skews older than 73% of counties in Louisiana.