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Traffic heat map of Assumption Parish, Louisiana: 178 miles of roads shaded from blue (light) to red (heavy traffic), busiest on US 90 and Raceland-M C Express

Assumption Parish, Louisiana Traffic Counts

TrafficZoom tracks traffic on 178 road miles in Assumption Parish, Louisiana, divided into 2,221 segments averaging 422 ft. Its busiest road, US 90, carries 14,211 vehicles a day, 3.7 times the average road. Built from cross-verified mobile and road-sensor data, these counts help you size up a retail site, plan logistics routes or assess infrastructure needs.
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 Assumption Parish, Louisiana

Traffic

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

vehicles per day3,855
Trucks

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

10.9%
Average travel time

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

34.3 min
Congestion ratio

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

12.3%
Drivers’ average age

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

46.6 yrs
Drivers’ average income

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

$63,157

The average monitored road in Assumption Parish, Louisiana carries 3,855 vehicles per day. Across its 178 miles of monitored roads, that adds up to 674,880 vehicle-miles traveled per day (≈246 million per year). Trucks are 10.9% of traffic, close to the 11.2% across Louisiana.

Longer trips than 75% of counties in Louisiana

Assumption sees 36% lower average daily traffic volume than the state average (3,855 vehicles per day against 6,061), suggesting less demand on each road - less drive-by exposure for retail, but easier access for deliveries. Network-wide, Assumption accounts for about 0.6% of Louisiana's statewide total of vehicle-miles. By volume, Assumption's 3,855 vehicles per day outpaces 60% of counties in Louisiana.

At 34.3 minutes, the average travel time is 8% higher than the state level. On travel time, Assumption runs longer than 75% of counties in Louisiana.

Congestion runs 29% lower than the state level, at a ratio of 12.3%, which means smoother traffic flow - fewer delays make delivery windows more reliable.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Assumption Parish, Louisiana

Trafficvehicles per day12,274
Trucks18.1%
Average travel time52.5 min
Congestion ratio19.0%
Drivers’ average age46.1 yrs
Drivers’ average income$71,481

At 16% of vehicle-miles, highways carry a smaller share of the traffic in Assumption Parish, Louisiana than local roads. The average highway carries 12,274 vehicles per day, 222% more than the average non-highway road in the same area, which carries 3,809 vehicles per day.

That comes from just 4% of the monitored road miles: 8 miles in 12 segments, carrying 108,074 vehicle-miles traveled per day (≈39.4 million per year).

A typical mix of freight and passenger traffic

At 18.1%, highway truck share is 13% higher than the state average. The highway traffic mix is typical for Louisiana: neither freight- nor commuter-dominated.

By truck concentration, highways here outrank 62% of counties in Louisiana. Assumption's highway truck count is higher than 64% of counties in Louisiana, at roughly 2,222 trucks per day.

non-highway traffic icon

Non-highway Traffic in Assumption Parish, Louisiana

Trafficvehicles per day3,809
Trucks9.6%
Average travel time34.2 min
Congestion ratio12.3%
Drivers’ average age46.7 yrs
Drivers’ average income$62,531

Local roads carry the vast majority of travel in Assumption Parish, Louisiana, 84% of all vehicle-miles. On the average non-highway road, that comes to 3,809 vehicles per day.

Their share of road miles is similar, 96% (170 miles in 2,209 segments), carrying 566,806 vehicle-miles traveled per day (≈207 million per year). Trucks make up 9.6% of non-highway traffic, about 1 in 10 vehicles.

Older drivers than 68% of counties in Louisiana

The concentration of trucks on non-highway roads is 47% lower than on highways.

At 27% lower than the state level, the non-highway congestion ratio of 12.3% signals easier movement on local roads.

Trip origins here have lower average income than 54% of counties in Louisiana. Assumption's median driver age is higher than 68% of counties in Louisiana.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

In Assumption Parish, Louisiana, the peak hour concentrates about 8% of the day's traffic.

Assumption Parish vs. Louisiana Traffic Comparison

The average daily traffic per road sets Assumption Parish apart: 36% below the Louisiana average.

MetricAssumption ParishLouisiana averageDifference
Traffic3,8556,061-36.4%
Truck % (Total Traffic)10.9%11.2%-2.4%
Truck % (Highway)18.1%16.1%+12.8%
Avg. Travel Time34.3 min31.8 min+7.9%

How Assumption Parish compares

Assumption Parish moves the least traffic of its nearby parishes

Against the 4 nearest areas, Assumption Parish moves 41.5% of the total daily travel; it has the fourth busiest roads of the five.

Assumption 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
Assumption Parish3,85510.9%674,88034.3 min12.3%
St. James Parish, Louisiana4,06814.0%955,97534.6 min11.0%
St. Mary Parish, Louisiana3,30512.9%1,181,27329.3 min11.4%
Ascension Parish, Louisiana7,40210.8%2,826,41430.6 min20.0%
Iberville Parish, Louisiana3,94417.7%1,543,20132.9 min11.4%
Louisiana average6,06111.2%N/A31.8 min17.3%

Assumption Parish ranked within Louisiana

Assumption Parish sits in the bottom quarter of the Louisiana field on highway travel volume, at #52 of 57.

Assumption Parish ranked among 64 county-level areas in Louisiana (1 = highest); measures without data in every county rank a smaller field, down to 57.
MeasureAssumption ParishLouisiana rank
Traffic volume (AADT)3,855#26 of 64
Highway vehicle-miles per day108,074#52 of 57
Truck share on highways18.1%#22 of 57
Highway trucks per day2,222#21 of 57
Average travel time34.3 min#17 of 64
Average driver income$63,157#35 of 64
Average driver age46.6 yrs#21 of 64

Assumption Parish ranks #17 of 64 on average travel time but #52 of 57 on highway travel volume - the two describe the same roads and are worth reading together rather than either on its own.

Busiest roads in Assumption Parish, Louisiana

On their busiest stretches, the three busiest roads in Assumption Parish carry 12,183 vehicles a day on average, 3.2 times the typical road in the county (3,855).

US 90 leads with 14,211 vehicles a day, 3,170 of them trucks (22.3%). Raceland-M C Express is practically level with it at 13,927. It tops the truck ranking too, with the most trucks.

Trucks make up 22.3% of traffic on US 90, against 10.9% across all roads in the county.

US 90 carries longer journeys than most roads here, with a median trip of 53.8 minutes against 34.3 county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1US 90Motorway · 14,211vehicles3,170trucks · 22.3%
Road class
Motorway
Median trip time
53.8 min
Drivers’ median age
46.6 yrs
Drivers’ average income
$68,514

US 90 carries 3.7 times the county average on its busiest stretch, where the median trip lasts 53.8 minutes.

2Raceland-M C ExpressMotorway · 13,927vehicles1,851trucks · 13.3%
Road class
Motorway
Congestion ratio
19.9%
Median trip time
51.5 min
Drivers’ median age
45.8 yrs
Drivers’ average income
$74,600

Raceland-M C Express carries through traffic: the median trip using it lasts 51.5 minutes, against 34.3 for the county.

3LA 70Primary road · 8,410vehicles797trucks · 9.5%
Road class
Primary road
Congestion ratio
21.2%
Median trip time
27.5 min
Drivers’ median age
50.2 yrs
Drivers’ average income
$60,472

Delays build on LA 70: its congestion ratio of 21% over free-flow time is well above the county's 12%.

4Raceland-M C ExpresswayMotorway · 7,615vehicles1,011trucks · 13.3%
Road class
Motorway
Congestion ratio
17.3%
Median trip time
53.1 min
Drivers’ median age
45.3 yrs
Drivers’ average income
$78,260

Drivers on Raceland-M C Expressway are on long journeys, a median 53.1 minutes against 34.3 county-wide: a through route more than a local street.

5LA 662Secondary road · 6,596vehicles420trucks · 6.4%
Road class
Secondary road
Congestion ratio
12.9%
Median trip time
29.1 min
Drivers’ median age
47.3 yrs
Drivers’ average income
$53,272

At 71% more than the county average, LA 662 draws drivers from neighborhoods averaging $53,272 in household income.

Ranked by trucks per day

Cars and light vehiclesTrucks
1US 90Motorway · #1 by traffic14,211vehicles3,170trucks · 22.3%
2Raceland-M C ExpressMotorway · #2 by traffic13,927vehicles1,851trucks · 13.3%
3Raceland-M C ExpresswayMotorway · #4 by traffic7,615vehicles1,011trucks · 13.3%
4Pierre Part RoadPrimary road · 5,848vehicles819trucks · 14.0%
Road class
Primary road
Congestion ratio
13.5%
Median trip time
37.2 min
Drivers’ median age
46.1 yrs
Drivers’ average income
$62,597

Pierre Part Road is busy by local standards, at 52% more than the county average on its busiest stretch; trucks are 14.0% of it, above the county-wide 10.9%.

5LA 70Primary road · #3 by traffic8,410vehicles797trucks · 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

AssumptionDepartment 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 Assumption Parish

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

Need segment-level traffic data?

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