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Traffic heat map of Iberville Parish, Louisiana: 267 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Atchafalaya Basin Bridge

Iberville Parish, Louisiana Traffic Counts

How busy are the roads of Iberville Parish, Louisiana? We measure 267 road miles, divided into 3,198 segments, with multi-sourced, cross-verified mobile and sensor data. Its busiest road, Atchafalaya Basin Bridge, carries 51,259 vehicles a day, 13.0 times the average road. The breakdown below covers volume, trucks, congestion and driver profiles for retailers, logistics planners and engineers.
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 Iberville Parish, Louisiana

Traffic

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

vehicles per day3,944
Trucks

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

17.7%
Average travel time

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

32.9 min
Congestion ratio

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

11.4%
Drivers’ average age

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

41.7 yrs
Drivers’ average income

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

$73,154

Our data shows 3,944 vehicles per day on the average road in Iberville Parish, Louisiana, and 1,543,201 vehicle-miles traveled per day (≈563 million per year) across its 267 miles of monitored roads. About 1 in 6 vehicles is a truck, well above the 11.2% across Louisiana - a freight-heavy mix.

Traffic 35% below the Louisiana average

Iberville sees 35% lower average daily traffic volume than the state average (3,944 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, Iberville accounts for about 1.3% of Louisiana's statewide total of vehicle-miles. By volume, Iberville's 3,944 vehicles per day outpaces 63% of counties in Louisiana.

Journey times here (32.9 minutes on average) closely track the state level. 52% of counties in Louisiana have a shorter average travel time than Iberville's 32.9 minutes.

Congestion runs 34% lower than the state level, at a ratio of 11.4%, which means smoother traffic flow - fewer delays make delivery windows more reliable.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Iberville Parish, Louisiana

Trafficvehicles per day12,798
Trucks20.8%
Average travel time44.8 min
Congestion ratio23.6%
Drivers’ average age41.4 yrs
Drivers’ average income$73,290

A little more than half of the driving in Iberville Parish, Louisiana happens on highways: 69% of all vehicle-miles. The average highway carries 12,798 vehicles per day, 320% more than the average non-highway road in the same area, which carries 3,044 vehicles per day.

With 24% of the road miles (64 miles in 295 segments), highways punch above their length, carrying 1,070,276 vehicle-miles traveled per day (≈391 million per year).

That is more highway travel volume than 62% of counties in Louisiana.

Higher highway truck share than 82% of counties in Louisiana

Highway truck concentration here runs 30% higher than the state average, at 20.8%. Highways here lean toward freight, so highway access is a real asset for logistics operators.

82% of counties in Louisiana see a lower highway truck share than Iberville's 20.8%. By raw truck volume, Iberville carries more highway trucks than 80% of counties in Louisiana.

non-highway traffic icon

Non-highway Traffic in Iberville Parish, Louisiana

Trafficvehicles per day3,044
Trucks10.7%
Average travel time31.7 min
Congestion ratio10.1%
Drivers’ average age42.1 yrs
Drivers’ average income$73,020

A significant share of driving in Iberville Parish, Louisiana, 31% of vehicle-miles, happens on local roads. A typical local road sees 3,044 vehicles per day.

Spread over 203 miles and 2,903 segments, 76% of the road network, local roads carry a lighter load per mile: 472,925 vehicle-miles traveled per day (≈173 million per year). The truck share on non-highway roads is 10.7%.

Younger drivers than 98% of counties in Louisiana

The concentration of trucks on non-highway roads is 48% lower than on highways.

At 40% lower than the state level, the non-highway congestion ratio of 10.1% signals easier movement on local roads.

Iberville's average driver income is higher than 67% of counties in Louisiana. The driver population here skews younger than 98% of counties in Louisiana.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

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

Iberville Parish vs. Louisiana Traffic Comparison

Iberville Parish's biggest difference from the Louisiana average is its truck share, 59% above it. Its average daily traffic per road, by contrast, is 35% below.

MetricIberville ParishLouisiana averageDifference
Traffic3,9446,061-34.9%
Truck % (Total Traffic)17.7%11.2%+58.5%
Truck % (Highway)20.8%16.1%+29.8%
Avg. Travel Time32.9 min31.8 min+3.4%

How Iberville Parish compares

Iberville Parish has the quietest roads among its nearby parishes

Set against the average of the 4 areas nearest to it, Iberville Parish is 36.8% less congested and carries 41.7% less traffic on a typical road; it has the quietest roads of the five. Freight passes through here that never reaches the areas around it: the truck share is high precisely because the local car traffic is not.

Iberville 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
Iberville Parish3,94417.7%1,543,20132.9 min11.4%
West Baton Rouge Parish, Louisiana4,74217.4%1,762,25335.9 min13.1%
East Baton Rouge Parish, Louisiana10,0748.1%9,997,18731.0 min26.3%
Ascension Parish, Louisiana7,40210.8%2,826,41430.6 min20.0%
St. Martin Parish, Louisiana4,84614.3%2,053,57130.6 min12.7%
Louisiana average6,06111.2%N/A31.8 min17.3%

Iberville Parish ranked within Louisiana

Average driver age places Iberville Parish #63 of 64 in Louisiana - the bottom quarter of the state.

Iberville Parish ranked among 64 county-level areas in Louisiana (1 = highest); measures without data in every county rank a smaller field, down to 57.
MeasureIberville ParishLouisiana rank
Traffic volume (AADT)3,944#24 of 64
Highway vehicle-miles per day1,070,276#22 of 57
Truck share on highways20.8%#11 of 57
Highway trucks per day2,666#12 of 57
Average travel time32.9 min#31 of 64
Average driver income$73,154#22 of 64
Average driver age41.7 yrs#63 of 64

The two ends of this table sit far apart: #11 of 57 on truck share on highways, against #63 of 64 on average driver age.

Busiest roads in Iberville Parish, Louisiana

The three busiest roads in Iberville Parish average 39,605 vehicles a day, 10.0 times the county average of 3,944 across all its monitored roads.

Atchafalaya Basin Bridge leads with 51,259 vehicles a day, 11,035 of them trucks (21.5%). It tops the truck ranking too, with the most trucks.

Trips using I 10 are long: a median of 61.2 minutes against 32.9 county-wide, the mark of a through route.

Drivers on Nicholson Extended come from neighborhoods with an average household income of $98,945, 35% above the county average of $73,154.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Atchafalaya Basin BridgeMotorway · 51,259vehicles11,035trucks · 21.5%
Road class
Motorway
Congestion ratio
59.0%
Median trip time
58.4 min
Drivers’ median age
41.4 yrs
Drivers’ average income
$76,375

Delays build on Atchafalaya Basin Bridge: its congestion ratio of 59% over free-flow time is well above the county's 11%.

2I 10Motorway · 42,984vehicles10,279trucks · 23.9%
Road class
Motorway
Congestion ratio
47.5%
Median trip time
61.2 min
Drivers’ median age
39.5 yrs
Drivers’ average income
$72,349

Travel on I 10's busiest stretch runs 48% over free-flow time, against 11% across the county, so expect slower peak hours.

3LA 1Trunk road · 24,572vehicles2,869trucks · 11.7%
Road class
Trunk road
Congestion ratio
29.8%
Median trip time
34.9 min
Drivers’ median age
41.2 yrs
Drivers’ average income
$79,800

LA 1 carries 6.2 times the county average at its busiest, 2,869 of them trucks (11.7%, below the county-wide 17.7%).

4Eden StreetTrunk road · 11,948vehicles1,388trucks · 11.6%
Road class
Trunk road
Congestion ratio
27.3%
Median trip time
39.7 min
Drivers’ median age
40.8 yrs
Drivers’ average income
$76,851

At 3.0 times the county average, Eden Street draws drivers from neighborhoods averaging $76,851 in household income.

5Nicholson ExtendedPrimary road · 11,114vehicles1,760trucks · 15.8%
Road class
Primary road
Congestion ratio
22.3%
Median trip time
33.4 min
Drivers’ median age
37.9 yrs
Drivers’ average income
$98,945

The busiest stretch of Nicholson Extended carries 2.8 times the county average; trucks are 15.8% of it, below the county-wide 17.7%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Atchafalaya Basin BridgeMotorway · #1 by traffic51,259vehicles11,035trucks · 21.5%
2I 10Motorway · #2 by traffic42,984vehicles10,279trucks · 23.9%
3LA 1Trunk road · #3 by traffic24,572vehicles2,869trucks · 11.7%
4Nicholson ExtendedPrimary road · #5 by traffic11,114vehicles1,760trucks · 15.8%
5Eden StreetTrunk road · #4 by traffic11,948vehicles1,388trucks · 11.6%
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

IbervilleDepartment 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 Iberville Parish

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

Need segment-level traffic data?

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