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St. James Parish, Louisiana Traffic Counts

This page delivers traffic analytics for St. James Parish, Louisiana. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for St. James Parish, Louisiana among 159 road miles divided in 2,396 segments. Our metrics go beyond simple volume counts to provide actionable insights on traffic intensity, congestion, commercial vehicle flow, and network performance with highest possible granularity (average segment length is 350 ft). Whether you are evaluating a new retail location, planning logistics routes, or assessing infrastructure needs, this data helps you move from assumptions to certainty.
Data sourced from TrafficZoom's proprietary analytics platform.
Data current as of:
Q3 2026
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Total Traffic Volume & Performance

Traffic

4,068

Trucks

14.0%

Average travel time

34.6 min

Congestion ratio

11.0%

Drivers’ average age

44.9 yrs

Drivers’ average income

$81,979

Our data indicates an estimated average traffic volume of 4,068 vehicles per day in St. James Parish, Louisiana that results in 955,975 vehicle-miles traveled per day (≈349 million per year). The traffic stream is comprised of an average of 1 truck for every 7 vehicles. Typical time spent behind the wheel per trip is 34.6 minutes, which already accounts for delays at signals, intersections, and congestion.

Analytical insight

When compared to the Louisiana state averages: St. James's average daily traffic volume is 33% lower than the state average - 4,068 vehicles per day against 6,061 - suggesting less traffic load per road, a critical factor for logistics and site planning. Across the whole network that adds up to 955,975 vehicle-miles traveled per day (≈349 million per year), roughly 0.8% of Louisiana's statewide total. At 34.6 minutes, the average travel time is 9% higher than the state level. Congestion runs 36% lower than the state level, at a ratio of 11.0% - smoother traffic flow - crucial for traffic control improvement and logistics planning. St. James carries more traffic than 65% of counties in Louisiana. 76% of counties in Louisiana have a shorter average travel time than St. James's 34.6 minutes.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic

Traffic

9,328

Trucks

16.8%

Average travel time

46.4 min

Congestion ratio

23.6%

Drivers’ average age

44.2 yrs

Drivers’ average income

$81,983

A significant volume of traffic in St. James Parish, Louisiana utilizes the highway network. The average highway carries 9,328 vehicles per day, 154% more than the average non-highway road in the same area, which carries 3,669 vehicles per day. That average covers 41 highway road miles divided in 169 segments (average segment length 1,290 ft), together carrying 481,781 vehicle-miles traveled per day (≈176 million per year). Trucks constitute 16.8% of highway traffic.

Analytical insight

The concentration of trucks on highways (16.8%) is 5% higher than the state average for similar road classifications. This indicates St. James serves as a significant freight corridor. For logistics operators, this validates the importance of highway access. 55% of counties in Louisiana see a lower highway truck share than St. James's 16.8%. St. James's highway truck count is higher than 59% of counties in Louisiana, at roughly 1,569 trucks per day.
non-highway traffic icon

Non-highway traffic

Traffic

3,669

Trucks

11.2%

Average travel time

33.7 min

Congestion ratio

10.0%

Drivers’ average age

46.0 yrs

Drivers’ average income

$81,976

The non-highway road network in St. James Parish, Louisiana supports a substantial volume of traffic. The average non-highway road carries 3,669 vehicles per day, 61% less than the average highway in the same area, which carries 9,328 vehicles per day. That average covers 118 non-highway road miles divided in 2,227 segments (average segment length 279 ft), together carrying 474,194 vehicle-miles traveled per day (≈173 million per year). Trucks constitute 11.2% of non-highway traffic.

Analytical insight

Non-highway roads carry a truck concentration that's 34% lower than the highway network. At 40% lower than the state level, the non-highway congestion ratio of 10.0% signals easier movement on local roads. St. James's overall average travel time exceeds 76% of counties in Louisiana. St. James's average driver income exceeds 86% of counties in Louisiana. 37% of counties in Louisiana have a younger driver population than St. James.

Time-of-Day & Seasonal Patterns

Analytical insight

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

Traffic Flow Profile Comparison

Metric

St. James

Louisiana
Average

Difference

Traffic

4,068

6,061

-32.9%

Truck % (Total Traffic)

14.0%

11.2%

+25.3%

Truck % (Highway)

16.8%

16.1%

+4.8%

Avg. Travel Time

34.6 min

31.8 min

+8.7%

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

LouisianaDepartment of Transportation

Historical traffic pattern databases

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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