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Traffic heat map of Terrebonne Parish, Louisiana: 429 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Martin Luther King Boulevard

Terrebonne Parish, Louisiana Traffic Counts

Traffic analytics for Terrebonne Parish, Louisiana, calculated from real-world mobile and sensor networks on 4,952 road segments (429 road miles, about 457 ft each). Its busiest road, Martin Luther King Boulevard, carries 28,343 vehicles a day, 3.9 times the average road. Use the figures below to move from assumptions to certainty on retail locations, logistics and road planning.
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 Terrebonne Parish, Louisiana

Traffic

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

vehicles per day7,267
Trucks

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

7.6%
Average travel time

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

32.4 min
Congestion ratio

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

24.3%
Drivers’ average age

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

45.3 yrs
Drivers’ average income

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

$75,222

Our data shows 7,267 vehicles per day on the average road in Terrebonne Parish, Louisiana, and 2,508,746 vehicle-miles traveled per day (≈916 million per year) across its 429 miles of monitored roads. About 1 in 13 vehicles is a truck, fewer than the 1 in 9 across Louisiana.

Busier roads than 84% of counties in Louisiana

At 7,267 vehicles per day, the average monitored road in Terrebonne carries 20% more traffic than the state average of 6,061, suggesting more demand on each road - a factor worth weighing in site selection and logistics planning. Across the whole network, that travel is about 2.1% of Louisiana's statewide total. 84% of counties in Louisiana see less traffic than Terrebonne's 7,267 vehicles per day.

Journey times here (32.4 minutes on average) closely track the state level. Its average travel time of 32.4 minutes is shorter than 59% of counties in Louisiana.

Congestion runs 41% higher than the state level, at a ratio of 24.3%, which means more pronounced congestion - expect slower peak-hour deliveries and less predictable arrival times.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Terrebonne Parish, Louisiana

Trafficvehicles per day6,066
Trucks18.5%
Average travel time49.8 min
Congestion ratio14.1%
Drivers’ average age45.7 yrs
Drivers’ average income$73,817

Highways carry only a small share of the traffic in Terrebonne Parish, Louisiana, 13% of all vehicle-miles. The average highway carries 6,066 vehicles per day, 17% less than the average non-highway road in the same area, which carries 7,286 vehicles per day.

Highways also make up about 12% of the monitored road miles: 52 miles in 76 segments, together carrying 328,125 vehicle-miles traveled per day (≈120 million per year).

Higher highway truck share than 68% of counties in Louisiana

The concentration of trucks on highways (18.5%) is 15% higher than the state average for similar road classifications. Highways here lean toward freight, so highway access is a real asset for logistics operators.

Terrebonne's highway truck share (18.5%) is higher than 68% of counties in Louisiana. 66% of counties in Louisiana see more highway trucks per day than Terrebonne's roughly 1,120.

non-highway traffic icon

Non-highway Traffic in Terrebonne Parish, Louisiana

Trafficvehicles per day7,286
Trucks6.0%
Average travel time32.1 min
Congestion ratio24.5%
Drivers’ average age45.3 yrs
Drivers’ average income$75,328

The vast majority of driving in Terrebonne Parish, Louisiana happens on local roads: 87% of all vehicle-miles. On the average non-highway road, that comes to 7,286 vehicles per day.

Local roads also make up about 88% of the monitored road miles: 376 miles in 4,876 segments, together carrying 2,180,621 vehicle-miles traveled per day (≈796 million per year). About 1 in 17 vehicles on non-highway roads is a truck (6.0%).

Drivers from higher-income areas than 75% of counties in Louisiana

Non-highway roads carry a truck concentration that's 68% lower than the highway network.

The non-highway congestion ratio of 24.5% is 45% higher than the state level, suggesting slower local mobility than the state average.

Trip origins here have higher average income than 75% of counties in Louisiana. Terrebonne's median driver age is lower than 54% of counties in Louisiana.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

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

Terrebonne Parish vs. Louisiana Traffic Comparison

The truck share sets Terrebonne Parish apart: 32% below the Louisiana average. Its average daily traffic per road, by contrast, is 20% above.

MetricTerrebonne ParishLouisiana averageDifference
Traffic7,2676,061+19.9%
Truck % (Total Traffic)7.6%11.2%-32.1%
Truck % (Highway)18.5%16.1%+15.1%
Avg. Travel Time32.4 min31.8 min+1.9%

How Terrebonne Parish compares

Terrebonne Parish is more congested than any nearby parish

Compared with its 4 closest neighbours, Terrebonne Parish is 89.8% more congested and carries 67.7% more traffic on a typical road; 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.

Terrebonne 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
Terrebonne Parish7,2677.6%2,508,74632.4 min24.3%
Lafourche Parish, Louisiana6,1049.5%2,251,14133.0 min16.5%
Assumption Parish, Louisiana3,85510.9%674,88034.3 min12.3%
St. Mary Parish, Louisiana3,30512.9%1,181,27329.3 min11.4%
St. James Parish, Louisiana4,06814.0%955,97534.6 min11.0%
Louisiana average6,06111.2%N/A31.8 min17.3%

Terrebonne Parish ranked within Louisiana

Average daily traffic volume places Terrebonne Parish #11 of 64 in Louisiana - the top quarter of the state.

Terrebonne Parish ranked among 64 county-level areas in Louisiana (1 = highest); measures without data in every county rank a smaller field, down to 57.
MeasureTerrebonne ParishLouisiana rank
Traffic volume (AADT)7,267#11 of 64
Highway vehicle-miles per day328,125#40 of 57
Truck share on highways18.5%#19 of 57
Highway trucks per day1,120#38 of 57
Average travel time32.4 min#38 of 64
Average driver income$75,222#17 of 64
Average driver age45.3 yrs#35 of 64

Busiest roads in Terrebonne Parish, Louisiana

Traffic concentrates on a few corridors: the three busiest roads average 24,157 vehicles a day, against 7,267 on the average road in Terrebonne Parish.

Martin Luther King Boulevard is the busiest road, at 28,343 vehicles a day, 1,145 of them trucks (4.0%). Raceland-M C Express carries the most trucks, 2,454 a day (18.4% of its traffic), although it is not among the 5 busiest roads overall.

Freight stands out on US 90 and Raceland-M C Express: trucks are 18.5% and 18.4% of the traffic there, against 7.6% county-wide.

Trips using Raceland-M C Express are long: a median of 50.5 minutes against 32.4 county-wide, the mark of a through route.

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
1Martin Luther King BoulevardSecondary road · 28,343vehicles1,145trucks · 4.0%
Road class
Secondary road
Congestion ratio
67.5%
Median trip time
31.0 min
Drivers’ median age
45.5 yrs
Drivers’ average income
$76,818

Martin Luther King Boulevard is one of the more congested roads here: trips take 67% longer than at free-flow speed, against 24% county-wide.

2Tunnel BoulevardSecondary road · 23,431vehicles1,030trucks · 4.4%
Road class
Secondary road
Congestion ratio
61.6%
Median trip time
32.0 min
Drivers’ median age
45.4 yrs
Drivers’ average income
$75,344

Tunnel Boulevard peaks at 23,431 vehicles a day, 3.2 times the county average; trucks are 4.4% of it, below the county-wide 7.6%.

3Main StreetPrimary road · 20,696vehicles1,009trucks · 4.9%
Road class
Primary road
Congestion ratio
52.5%
Median trip time
32.3 min
Drivers’ median age
44.9 yrs
Drivers’ average income
$73,372

Main Street carries 2.8 times the county average at its busiest, 1,009 of them trucks (4.9%, below the county-wide 7.6%).

4Park AvenuePrimary road · 17,408vehicles857trucks · 4.9%
Road class
Primary road
Congestion ratio
81.6%
Median trip time
32.3 min
Drivers’ median age
44.9 yrs
Drivers’ average income
$74,265

Delays build on Park Avenue: its congestion ratio of 82% over free-flow time is well above the county's 24%.

5Prospect BoulevardSecondary road · 15,985vehicles1,142trucks · 7.1%
Road class
Secondary road
Congestion ratio
41.8%
Median trip time
33.8 min
Drivers’ median age
45.9 yrs
Drivers’ average income
$69,442

Prospect Boulevard carries 2.2 times the county average on its busiest stretch, where the median trip lasts 33.8 minutes.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Raceland-M C ExpressMotorway · 13,318vehicles2,454trucks · 18.4%
Road class
Motorway
Congestion ratio
15.0%
Median trip time
50.5 min
Drivers’ median age
45.8 yrs
Drivers’ average income
$73,451

Raceland-M C Express carries 83% more than the county average on its busiest stretch, where the median trip lasts 50.5 minutes.

2US 90Motorway · 10,029vehicles1,856trucks · 18.5%
Road class
Motorway
Congestion ratio
12.7%
Median trip time
43.4 min
Drivers’ median age
45.8 yrs
Drivers’ average income
$75,732

Drivers on US 90 are on long journeys, a median 43.4 minutes against 32.4 county-wide: a through route more than a local street.

3Martin Luther King BoulevardSecondary road · #1 by traffic28,343vehicles1,145trucks · 4.0%
4Prospect BoulevardSecondary road · #5 by traffic15,985vehicles1,142trucks · 7.1%
5New Orleans BoulevardPrimary road · 14,590vehicles1,085trucks · 7.4%
Road class
Primary road
Congestion ratio
34.2%
Median trip time
30.6 min
Drivers’ median age
46.3 yrs
Drivers’ average income
$73,315

At 2.0 times the county average, New Orleans Boulevard draws drivers from neighborhoods averaging $73,315 in household income.

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

TerrebonneDepartment 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 Terrebonne Parish

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

Need segment-level traffic data?

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