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Traffic heat map of Lafourche Parish, Louisiana: 367 miles of roads shaded from blue (light) to red (heavy traffic), busiest on US 90 and Bayou Road

Lafourche Parish, Louisiana Traffic Counts

Our Lafourche Parish, Louisiana traffic data covers 5,091 road segments over 367 road miles, with an average segment of just 380 ft. Its busiest road, US 90, carries 22,563 vehicles a day, 3.7 times the average road. 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 Lafourche Parish, Louisiana

Traffic

The average number of vehicles that travel each day over any road in the road network.

vehicles per day6,104
Trucks

The percentage of the total traffic volume composed of heavy vehicles.

9.5%
Average travel time

The average time of travel averaged among all vehicles traveling on the road network.

33.0 min
Congestion ratio

The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network.

16.5%
Drivers’ average age

Average age of residents in the geographic areas where the vehicle trips originated.

46.2 yrs
Drivers’ average income

Average income of residents in the geographic areas where the vehicle trips originated.

$75,030

A typical monitored road in Lafourche Parish, Louisiana sees 6,104 vehicles per day, while its 367 miles of monitored roads together handle 2,251,141 vehicle-miles traveled per day (≈822 million per year). Trucks are 9.5% of traffic, close to the 11.2% across Louisiana.

Busier roads than 78% of counties in Louisiana

Lafourche's average daily traffic volume of 6,104 vehicles per day is on par with the state average of 6,061. Across the whole network, that travel is about 1.9% of Louisiana's statewide total. By volume, Lafourche's 6,104 vehicles per day outpaces 78% of counties in Louisiana.

Journey times here (33.0 minutes on average) closely track the state level. Its average travel time of 33.0 minutes is longer than 54% of counties in Louisiana.

The congestion ratio of 16.5% is in line with the state level.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Lafourche Parish, Louisiana

Trafficvehicles per day10,586
Trucks16.0%
Average travel time52.0 min
Congestion ratio25.1%
Drivers’ average age46.5 yrs
Drivers’ average income$80,322

Highways carry a smaller share of travel in Lafourche Parish, Louisiana, 18% of vehicle-miles; most driving happens on local roads. The average highway carries 10,586 vehicles per day, 76% more than the average non-highway road in the same area, which carries 5,999 vehicles per day.

Highways make up 12% of the monitored road miles (42 miles, 117 segments), so they carry more than their share: 407,077 vehicle-miles traveled per day (≈149 million per year).

A typical mix of freight and passenger traffic

The concentration of trucks on highways (16.0%) is in line with the state average for similar road classifications. The highway traffic mix is typical for Louisiana: neither freight- nor commuter-dominated.

50% of counties in Louisiana see a lower highway truck share than Lafourche's 16.0%. Lafourche's highway truck count is lower than 55% of counties in Louisiana, at roughly 1,689 trucks per day.

non-highway traffic icon

Non-highway Traffic in Lafourche Parish, Louisiana

Trafficvehicles per day5,999
Trucks8.1%
Average travel time32.6 min
Congestion ratio16.3%
Drivers’ average age46.2 yrs
Drivers’ average income$74,254

Local roads carry the vast majority of travel in Lafourche Parish, Louisiana, 82% of all vehicle-miles. A typical local road sees 5,999 vehicles per day.

Local roads also make up about 88% of the monitored road miles: 324 miles in 4,974 segments, together carrying 1,844,064 vehicle-miles traveled per day (≈673 million per year). About 1 in 12 vehicles on non-highway roads is a truck (8.1%).

Drivers from higher-income areas than 73% of counties in Louisiana

Non-highway roads carry a truck concentration that's 49% lower than the highway network.

At 16.3%, the non-highway congestion ratio matches the state level closely.

73% of counties in Louisiana see lower average driver income among trip origins than Lafourche. Lafourche's median driver age is higher than 65% of counties in Louisiana.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

In Lafourche Parish, Louisiana, the peak hour concentrates about 7% of the day's traffic.

Lafourche Parish vs. Louisiana Traffic Comparison

Lafourche Parish stays close to the Louisiana average; the largest gap is its truck share, 15% below.

MetricLafourche ParishLouisiana averageDifference
Traffic6,1046,061+0.7%
Truck % (Total Traffic)9.5%11.2%-14.7%
Truck % (Highway)16.0%16.1%-0.6%
Avg. Travel Time33.0 min31.8 min+3.8%

How Lafourche Parish compares

Lafourche Parish is the least congested of its nearby parishes

Compared with its 4 closest neighbours, Lafourche Parish is 28.1% less congested; it has the fourth busiest roads of the five. The same kind of road, just less of it: traffic per road matches the areas around it while the network itself is smaller.

Lafourche 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
Lafourche Parish6,1049.5%2,251,14133.0 min16.5%
Jefferson Parish, Louisiana10,3946.3%7,728,86732.5 min29.7%
St. Charles Parish, Louisiana7,01013.1%2,317,80233.9 min19.5%
Terrebonne Parish, Louisiana7,2677.6%2,508,74632.4 min24.3%
Plaquemines Parish, Louisiana3,94212.7%882,97330.5 min18.6%
Louisiana average6,06111.2%N/A31.8 min17.3%

Lafourche Parish ranked within Louisiana

Average daily traffic volume places Lafourche Parish #15 of 64 in Louisiana - the top quarter of the state.

Lafourche Parish ranked among 64 county-level areas in Louisiana (1 = highest); measures without data in every county rank a smaller field, down to 57.
MeasureLafourche ParishLouisiana rank
Traffic volume (AADT)6,104#15 of 64
Highway vehicle-miles per day407,077#34 of 57
Truck share on highways16.0%#29 of 57
Highway trucks per day1,689#32 of 57
Average travel time33.0 min#30 of 64
Average driver income$75,030#18 of 64
Average driver age46.2 yrs#23 of 64

Busiest roads in Lafourche Parish, Louisiana

Traffic concentrates on a few corridors: the three busiest roads average 19,150 vehicles a day, against 6,104 on the average road in Lafourche Parish.

US 90 leads with 22,563 vehicles a day, 3,272 of them trucks (14.5%). It tops the truck ranking too, with the most trucks.

Trips using US 90 are long: a median of 52.9 minutes against 33.0 county-wide, the mark of a through route.

Trucks make up 17.5% of traffic on LA 1 Expressway, against 9.5% across all roads in the county.

The truck ranking looks different from the traffic one, sharing just 2 of its 5 roads.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1US 90Trunk road · 22,563vehicles3,272trucks · 14.5%
Road class
Trunk road
Congestion ratio
26.2%
Median trip time
52.9 min
Drivers’ median age
46.5 yrs
Drivers’ average income
$82,671

US 90 peaks at 22,563 vehicles a day, 3.7 times the county average; trucks are 14.5% of it, above the county-wide 9.5%.

2Bayou RoadSecondary road · 18,094vehicles895trucks · 5.0%
Road class
Secondary road
Congestion ratio
41.2%
Median trip time
33.5 min
Drivers’ median age
45.7 yrs
Drivers’ average income
$78,046

Travel on Bayou Road's busiest stretch runs 41% over free-flow time, against 17% across the county, so expect slower peak hours.

3Canal BoulevardPrimary road · 16,792vehicles936trucks · 5.6%
Road class
Primary road
Congestion ratio
24.4%
Median trip time
33.0 min
Drivers’ median age
45.0 yrs
Drivers’ average income
$73,761

Canal Boulevard carries 2.8 times the county average at its busiest, 936 of them trucks (5.6%, below the county-wide 9.5%).

4LA 182Primary road · 16,194vehicles1,493trucks · 9.2%
Road class
Primary road
Congestion ratio
33.8%
Median trip time
39.6 min
Drivers’ median age
46.8 yrs
Drivers’ average income
$78,753

LA 182 carries 2.7 times the county average on its busiest stretch, where the median trip lasts 39.6 minutes.

5New Orleans BoulevardPrimary road · 15,207vehicles1,212trucks · 8.0%
Road class
Primary road
Congestion ratio
38.0%
Median trip time
33.1 min
Drivers’ median age
46.2 yrs
Drivers’ average income
$74,768

New Orleans Boulevard is one of the more congested roads here: trips take 38% longer than at free-flow speed, against 17% county-wide.

Ranked by trucks per day

Cars and light vehiclesTrucks
1US 90Trunk road · #1 by traffic22,563vehicles3,272trucks · 14.5%
2LA 1 ExpresswayPrimary road · 8,851vehicles1,547trucks · 17.5%
Road class
Primary road
Median trip time
52.0 min
Drivers’ median age
50.8 yrs
Drivers’ average income
$65,264

Drivers on LA 1 Expressway are on long journeys, a median 52.0 minutes against 33.0 county-wide: a through route more than a local street.

3LA 182Primary road · #4 by traffic16,194vehicles1,493trucks · 9.2%
4Alex Plaisance BoulevardPrimary road · 9,794vehicles1,406trucks · 14.3%
Road class
Primary road
Congestion ratio
12.2%
Median trip time
46.6 min
Drivers’ median age
50.0 yrs
Drivers’ average income
$65,637

Alex Plaisance Boulevard carries through traffic: the median trip using it lasts 46.6 minutes, against 33.0 for the county.

5LA 1 / LA 182Secondary road · 11,887vehicles1,235trucks · 10.4%
Road class
Secondary road
Congestion ratio
37.0%
Median trip time
30.9 min
Drivers’ median age
46.2 yrs
Drivers’ average income
$70,445

LA 1 / LA 182 peaks at 11,887 vehicles a day, 95% more than the county average; trucks are 10.4% of it, above the county-wide 9.5%.

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

LafourcheDepartment 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 Lafourche Parish

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

Need segment-level traffic data?

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