This page delivers traffic analytics for St. Tammany Parish, Louisiana. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for St. Tammany Parish, Louisiana among 801 road miles divided in 16,297 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 260 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.
The average number of vehicles that travel each day over any road in the road network.
7,329
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
9.8%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
30.8 min
Congestion ratio
Congestion ratio
The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network.
19.4%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
47.8 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$84,214
Our data indicates an estimated average traffic volume of 7,329 vehicles per day in St. Tammany Parish, Louisiana that results in 7,296,396 vehicle-miles traveled per day (≈2.7 billion per year). The traffic stream is comprised of an average of 1 truck for every 10 vehicles. Typical time spent behind the wheel per trip is 30.8 minutes, which already accounts for delays at signals, intersections, and congestion.
Analytical insight
When compared to the Louisiana state averages: St. Tammany sees 21% higher average daily traffic volume than the state average (7,329 vehicles per day against 6,061), suggesting more demand on each road - a critical factor for logistics and site planning. In total volume terms, its road network carries 7,296,396 vehicle-miles traveled per day (≈2.7 billion per year), about 6.0% of Louisiana's statewide total. The average trip takes 30.8 minutes, 3% lower than the state level. At 12% higher than the state level, the 19.4% congestion ratio signals more pronounced congestion - crucial for traffic control improvement and logistics planning. By volume, St. Tammany's 7,329 vehicles per day outpaces 86% of counties in Louisiana. Its average travel time of 30.8 minutes is longer than 24% of counties in Louisiana.
Highway vs. Non-Highway Traffic Analysis
Highway Traffic
Traffic
Traffic
The average number of vehicles that travel each day over any road in the road network.
21,903
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
14.1%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
39.0 min
Congestion ratio
Congestion ratio
The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network.
40.0%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
47.4 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$82,889
A significant volume of traffic in St. Tammany Parish, Louisiana utilizes the highway network. The average highway carries 21,903 vehicles per day, 211% more than the average non-highway road in the same area, which carries 7,041 vehicles per day. That average covers 168 highway road miles divided in 316 segments (average segment length 2,813 ft), together carrying 3,892,824 vehicle-miles traveled per day (≈1.4 billion per year). By highway travel volume, that ranks St. Tammany in the top 5 counties in Louisiana. Trucks constitute 14.1% of highway traffic.
Analytical insight
At 14.1%, highway truck share is 12% lower than the state average, marking St. Tammany as a primarily local traffic hub - underscoring the importance of local access for logistics operators. 41% of counties in Louisiana see a lower highway truck share than St. Tammany's 14.1%. By raw truck volume, St. Tammany carries more highway trucks than 77% of counties in Louisiana.
Non-highway traffic
Traffic
Traffic
The average number of vehicles that travel each day over any road in the road network.
7,041
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
4.8%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
30.6 min
Congestion ratio
Congestion ratio
The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network.
19.0%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
47.8 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$85,068
The non-highway road network in St. Tammany Parish, Louisiana supports a substantial volume of traffic. The average non-highway road carries 7,041 vehicles per day, 68% less than the average highway in the same area, which carries 21,903 vehicles per day. That average covers 633 non-highway road miles divided in 15,981 segments (average segment length 209 ft), together carrying 3,403,571 vehicle-miles traveled per day (≈1.2 billion per year). Trucks constitute 4.8% of non-highway traffic.
Analytical insight
Compared to highways, non-highway routes see 66% fewer trucks by share. The non-highway congestion ratio of 19.0% is 13% higher than the state level, suggesting slower local mobility than the state average. Overall, average travel time here is longer than 24% of counties in Louisiana. St. Tammany's average driver income exceeds 90% of counties in Louisiana. 87% of counties in Louisiana have a younger driver population than St. Tammany.
Time-of-Day & Seasonal Patterns
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–12:00 PM and PM peak 3:00 PM–7:00 PM, with volumes reaching approximately 69% higher than the daily average.
Weekend traffic:
Weekend volumes run about 7% above weekday levels.
Seasonal Fluctuation
Busy season:
May–July is the high season, with volumes +9% versus the annual average.
Lowest month:
January is the quietest month, with volumes -9% versus the annual average.
Analytical insight
In St. Tammany Parish, Louisiana, the peak hour concentrates about 7% of the day's traffic, and seasonal swing is mild at +9% in high season.
Traffic Flow Profile Comparison
Metric
St. Tammany
Louisiana
Average
Difference
Traffic
7,329
6,061
+20.9%
Truck % (Total Traffic)
9.8%
11.2%
-12.7%
Truck % (Highway)
14.1%
16.1%
-12.2%
Avg. Travel Time
30.8 min
31.8 min
-3.2%
Frequently Asked Questions
The average daily traffic volume is calculated at 7,329 vehicles per day, providing a baseline for daily operations and site assessment.
The driver population in St. Tammany skews older than 87% of counties in Louisiana.
Traffic volumes are typically 9% higher during May–July. Volumes drop to their lowest levels in January, averaging 6,635 vehicles per day - a 9% decrease from the annual average.
The average travel time for drivers is 30.8 minutes, offering a standard metric for commute and delivery route planning.
Trucks account for approximately 9.8% of the total traffic mix across all road types, with a significantly higher concentration of 14.1% on highways.
Weekday peaks occur between 7:00 AM and 12:00 PM in the morning and between 3:00 PM and 7:00 PM in the evening - about 69% above the daily average.
Approximately 20% of highway traffic and 5% of non-highway traffic consists of vehicles whose trip originates outside St. Tammany Parish, Louisiana. This indicates that a portion of highway traffic is regional pass-through, while local roads are more representative of resident and commuter activity.
Drivers on St. Tammany roads have a median age of 48 years, and the median household income of the neighborhoods trips originate from averages $84,214 - useful context for retail siting and customer profiling.
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)
