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Traffic heat map of Jefferson Parish, Louisiana: 572 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Crescent City Connection

Jefferson Parish, Louisiana Traffic Counts

Our Jefferson Parish, Louisiana traffic data covers 15,033 road segments over 572 road miles, with an average segment of just 201 ft. Its highways carry the lowest truck share of any county in Louisiana, 8.3%. Whether you are evaluating a new retail location, planning routes or assessing infrastructure, these numbers replace guesswork.
Data sourced from TrafficZoom's proprietary analytics platform.
Data current as of:
Q3 2026
Updated:
September 29, 2026
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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 icon

Highway Traffic in Jefferson Parish, Louisiana

Trafficvehicles per day23,266
Trucks8.3%
Average travel time36.1 min
Congestion ratio55.4%
Drivers’ average age46.6 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 icon

Non-highway Traffic in Jefferson Parish, Louisiana

Trafficvehicles per day9,052
Trucks4.0%
Average travel time32.1 min
Congestion ratio27.0%
Drivers’ average age47.4 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.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
A long morning plateau from 7:00 AM to 12:00 PM and a long afternoon plateau from 3:00 PM to 7:00 PM, with volumes reaching approximately 64% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 15% below weekday levels, the usual weekend dip.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
Traffic is nearly flat through the year: even January–March, the busiest stretch, runs only +3% versus the annual average.
Lowest month:
July is the quietest month, with volumes -5% versus the annual average - an unusual summer low, when most places are at their busiest.

Data Finding: Hourly & Seasonal Patterns

In Jefferson Parish, Louisiana, the peak hour concentrates about 7% of the day's traffic, and traffic stays steady through the year (+3% in high season).

Jefferson Parish vs. Louisiana Traffic Comparison

Jefferson Parish's biggest difference from the Louisiana average is its average daily traffic per road, 71% above it. Its highway truck share, by contrast, is 48% below.

MetricJefferson ParishLouisiana averageDifference
Traffic10,3946,061+71.5%
Truck % (Total Traffic)6.3%11.2%-44.0%
Truck % (Highway)8.3%16.1%-48.0%
Avg. Travel Time32.5 min31.8 min+2.2%

How Jefferson Parish compares

Jefferson Parish has the busiest roads among its nearby parishes

Against the 4 nearest areas, Jefferson Parish carries 72.7% more traffic on a typical road and is 53.3% more congested; it has the busiest roads of the five. It is where traffic concentrates in this corner of the map - the local bottleneck, with more vehicles per road AND less room to absorb them.

Jefferson Parish and the 4 nearest county-level areas by centroid distance, with the Louisiana average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Jefferson Parish10,3946.3%7,728,86732.5 min29.7%
Lafourche Parish, Louisiana6,1049.5%2,251,14133.0 min16.5%
Plaquemines Parish, Louisiana3,94212.7%882,97330.5 min18.6%
St. Charles Parish, Louisiana7,01013.1%2,317,80233.9 min19.5%
Orleans Parish, Louisiana7,0228.6%6,925,13834.0 min22.8%
Louisiana average6,06111.2%N/A31.8 min17.3%

Jefferson Parish ranked within Louisiana

Jefferson Parish sits in Louisiana's top three on average daily traffic volume and highway travel volume.

Jefferson Parish ranked among 64 county-level areas in Louisiana (1 = highest); measures without data in every county rank a smaller field, down to 57.
MeasureJefferson ParishLouisiana rank
Traffic volume (AADT)10,394#2 of 64
Highway vehicle-miles per day4,028,077#2 of 57
Truck share on highways8.3%#57 of 57
Highway trucks per day1,940#19 of 57
Average travel time32.5 min#37 of 64
Average driver income$79,588#13 of 64
Average driver age47.1 yrs#18 of 64

Jefferson Parish ranks #2 of 57 on highway travel volume but #57 of 57 on truck share on highways. It carries some of the heaviest highway traffic in Louisiana, but very little of it is freight - this is commuter and local car volume, not through-trucking.

Busiest roads in Jefferson Parish, Louisiana

On their busiest stretches, the three busiest roads in Jefferson Parish carry 165,705 vehicles a day on average, 15.9 times the typical road in the county (10,394).

Crescent City Connection leads with 177,502 vehicles a day, 12,502 of them trucks (7.0%). I 10 carries the most trucks on the list, 15,200 a day (9.6% of its traffic), although it ranks #3 for all traffic.

Westbank Expressway carries longer journeys than most roads here, with a median trip of 44.7 minutes against 32.5 county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Crescent City ConnectionMotorway · 177,502vehicles12,502trucks · 7.0%
Road class
Motorway
Median trip time
35.8 min
Drivers’ median age
45.7 yrs
Drivers’ average income
$74,079

Crescent City Connection carries 17.1 times the county average at its busiest, 12,502 of them trucks (7.0%, above the county-wide 6.3%).

2Pontchartrain ExpresswayMotorway · 160,879vehicles13,391trucks · 8.3%
Road class
Motorway
Congestion ratio
121.5%
Median trip time
37.1 min
Drivers’ median age
45.8 yrs
Drivers’ average income
$73,875

Pontchartrain Expressway is one of the more congested roads here: trips take 122% longer than at free-flow speed, against 30% county-wide.

3I 10Motorway · 158,735vehicles15,200trucks · 9.6%
Road class
Motorway
Congestion ratio
90.2%
Median trip time
37.4 min
Drivers’ median age
45.9 yrs
Drivers’ average income
$81,111

Delays build on I 10: its congestion ratio of 90% over free-flow time is well above the county's 30%.

4Westbank ExpresswayMotorway · 99,209vehicles8,144trucks · 8.2%
Road class
Motorway
Median trip time
44.7 min
Drivers’ median age
45.8 yrs
Drivers’ average income
$74,965

Westbank Expressway carries 9.5 times the county average on its busiest stretch, where the median trip lasts 44.7 minutes.

5Huey P. Long BridgeTrunk road · 62,812vehicles3,291trucks · 5.2%
Road class
Trunk road
Congestion ratio
56.9%
Median trip time
36.4 min
Drivers’ median age
46.8 yrs
Drivers’ average income
$73,615

At 6.0 times the county average, Huey P. Long Bridge draws drivers from neighborhoods averaging $73,615 in household income.

Ranked by trucks per day

Only named roads are listed. Some unnamed segments, such as ramps or unlabeled carriageways, may carry as much traffic as the roads shown.

Cars and light vehiclesTrucks
1I 10Motorway · #3 by traffic158,735vehicles15,200trucks · 9.6%
2Pontchartrain ExpresswayMotorway · #2 by traffic160,879vehicles13,391trucks · 8.3%
3Crescent City ConnectionMotorway · #1 by traffic177,502vehicles12,502trucks · 7.0%
4Westbank ExpresswayMotorway · #4 by traffic99,209vehicles8,144trucks · 8.2%
5I 610Motorway · 58,220vehicles6,320trucks · 10.9%
Road class
Motorway
Congestion ratio
88.2%
Median trip time
37.6 min
Drivers’ median age
47.1 yrs
Drivers’ average income
$84,586

A main artery: I 610's busiest stretch carries 5.6 times the county average; trucks are 10.9% of it, above the county-wide 6.3%.

How to read these road counts
  • The first number is AADT, annual average daily traffic: the vehicles passing a point on an average day, both directions combined and trucks included. On a divided highway both carriageways are added together.
  • Traffic changes along a road, with more near interchanges and towns and less in open country. Every figure for a road describes its busiest stretch in the county, so the two rankings show the same numbers for the same road.
  • The second number is the trucks on that stretch, a part of its AADT. The bar splits the AADT into cars and light vehicles (blue) and trucks (amber).
  • See segment-level AADT for any road on TrafficZoom.

Data Sources & Methodology

The data presented on this page is derived from TrafficZoom's proprietary analytics platform, which aggregates and normalizes information from multiple sources, including:

Mobile device location data (anonymized and aggregated)

Road sensor networks and traffic counters

Historical traffic pattern databases

Public traffic count programs published by the

JeffersonDepartment of Transportation

Demographic Baseline for O-D Modeling

U.S. Census Bureau
All metrics represent estimates based on statistical modeling and are intended for strategic planning purposes.
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Data current as of:
Q3 2026

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Counties near Jefferson Parish

The same traffic breakdown for the areas closest to Jefferson Parish, Louisiana.

Need segment-level traffic data?

Identify traffic patterns street by street and analyze the exact corridors that matter to your project.