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Traffic heat map of Marion County, Mississippi: 313 miles of roads shaded from blue (light) to red (heavy traffic)

Marion County, Mississippi Traffic Counts

Traffic analytics for Marion County, Mississippi, calculated from real-world mobile and sensor networks on 3,007 road segments (313 road miles, about 550 ft each). Its highways carry the lowest truck share of any county in Mississippi, 9.1%. 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 Marion County, Mississippi

Traffic

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

vehicles per day2,362
Trucks

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

8.4%
Average travel time

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

30.1 min
Congestion ratio

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

7.8%
Drivers’ average age

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

47.3 yrs
Drivers’ average income

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

$49,348

A typical monitored road in Marion County, Mississippi sees 2,362 vehicles per day, while its 313 miles of monitored roads together handle 603,653 vehicle-miles traveled per day (≈220 million per year). About 1 in 12 vehicles is a truck, fewer than the 1 in 9 across Mississippi.

Traffic 56% below the Mississippi average

At 2,362 vehicles per day, the average monitored road in Marion carries 56% less traffic than the state average of 5,319, suggesting less demand on each road - very light roads: easy truck access, but little passing trade for roadside retail. Across the whole network, that travel is about 0.6% of Mississippi's statewide total. 67% of counties in Mississippi see more traffic than Marion's 2,362 vehicles per day.

At 30.1 minutes, the average travel time matches the state level closely. 72% of counties in Mississippi have a longer average travel time than Marion's 30.1 minutes.

Congestion runs 49% lower than the state level, at a ratio of 7.8%, which means smoother traffic flow - fewer delays make delivery windows more reliable.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Marion County, Mississippi

Trafficvehicles per day5,951
Trucks9.1%
Average travel time32.1 min
Congestion ratio14.8%
Drivers’ average age46.9 yrs
Drivers’ average income$50,360

Highways carry a significant share of travel in Marion County, Mississippi: 42% of all vehicle-miles. The average highway carries 5,951 vehicles per day, 210% more than the average non-highway road in the same area, which carries 1,918 vehicles per day.

With 15% of the road miles (48 miles in 331 segments), highways punch above their length, carrying 252,028 vehicle-miles traveled per day (≈92.0 million per year).

The lowest highway truck share of any county in Mississippi

At 9.1%, highway truck share is 43% lower than the state average. Highways here carry mainly commuter and local trips, with little through freight.

Marion also posts the lowest highway truck share in Mississippi - 9.1%. Marion's highway truck count is lower than 79% of counties in Mississippi, at roughly 541 trucks per day.

non-highway traffic icon

Non-highway Traffic in Marion County, Mississippi

Trafficvehicles per day1,918
Trucks8.0%
Average travel time29.9 min
Congestion ratio6.9%
Drivers’ average age48.3 yrs
Drivers’ average income$48,632

Local roads carry more than half of all travel in Marion County, Mississippi (58% of vehicle-miles). The average non-highway road carries 1,918 vehicles per day.

Spread over 265 miles and 2,676 segments, 85% of the road network, local roads carry a lighter load per mile: 351,625 vehicle-miles traveled per day (≈128 million per year). Trucks make up 8.0% of non-highway traffic, about 1 in 13 vehicles.

Local congestion 54% below the Mississippi average

Compared to highways, non-highway routes see 12% fewer trucks by share.

The non-highway congestion ratio of 6.9% is 54% lower than the state level, suggesting more efficient local mobility than the state average.

Marion's average driver income is lower than 70% of counties in Mississippi. 63% of counties in Mississippi have a younger driver population than Marion.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

In Marion County, Mississippi, the peak hour concentrates about 7% of the day's traffic.

Marion County vs. Mississippi Traffic Comparison

Marion County's biggest difference from the Mississippi average is its average daily traffic per road, 56% below it. Its highway truck share is also 43% below.

MetricMarion CountyMississippi averageDifference
Traffic2,3625,319-55.6%
Truck % (Total Traffic)8.4%11.1%-23.8%
Truck % (Highway)9.1%15.9%-42.8%
Avg. Travel Time30.1 min30.7 min-1.9%

How Marion County compares

Marion County against nearby counties

Marion County tracks the 4 areas around it closely - no measure in this table sets it far apart from the areas immediately next to it, though it has the second busiest roads of the five.

Marion County and the 4 nearest county-level areas by centroid distance, with the Mississippi average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Marion County2,3628.4%603,65330.1 min7.8%
Walthall County, Mississippi1,5419.1%253,11232.5 min4.8%
Lamar County, Mississippi5,6609.5%1,796,56229.5 min16.7%
Jefferson Davis County, Mississippi1,92110.9%271,17833.1 min6.1%
Lawrence County, Mississippi1,7629.9%286,29928.5 min7.3%
Mississippi average5,31911.1%N/A30.7 min15.2%

Marion County ranked within Mississippi

No county-level area in Mississippi records a lower truck share on highways than Marion County.

Marion County ranked among 82 county-level areas in Mississippi (1 = highest); measures without data in every county rank a smaller field, down to 78.
MeasureMarion CountyMississippi rank
Traffic volume (AADT)2,362#55 of 82
Highway vehicle-miles per day252,028#54 of 78
Truck share on highways9.1%#78 of 78
Highway trucks per day541#62 of 78
Average travel time30.1 min#59 of 82
Average driver income$49,348#57 of 82
Average driver age47.3 yrs#31 of 82

The two ends of this table sit far apart: #31 of 82 on average driver age, against #78 of 78 on truck share on highways.

Busiest roads in Marion County, Mississippi

The top three roads on this list in Marion County average 9,716 vehicles a day, 4.1 times the county average of 2,362 across all its monitored roads.

US 98 tops the list with 15,120 vehicles a day, 1,228 of them trucks (8.1%). No other road comes close: Main Street, in second place, carries 7,764. It also carries the most trucks on the list.

Ranked by daily traffic (AADT)

Only named roads are listed. Some unnamed segments, such as ramps or unlabeled carriageways, may carry as much traffic as the roads shown.

Cars and light vehiclesTrucks
1US 98Trunk road · 15,120vehicles1,228trucks · 8.1%
Road class
Trunk road
Congestion ratio
18.3%
Median trip time
32.4 min
Drivers’ median age
47.6 yrs
Drivers’ average income
$45,868

Travel on US 98's busiest stretch runs 18% over free-flow time, against 8% across the county, so expect slower peak hours.

2Main StreetPrimary road · 7,764vehicles407trucks · 5.2%
Road class
Primary road
Congestion ratio
17.3%
Median trip time
30.5 min
Drivers’ median age
48.6 yrs
Drivers’ average income
$46,087

Main Street is one of the more congested roads here: trips take 17% longer than at free-flow speed, against 8% county-wide.

3High School AvenuePrimary road · 6,262vehicles336trucks · 5.4%
Road class
Primary road
Congestion ratio
13.9%
Median trip time
27.5 min
Drivers’ median age
48.6 yrs
Drivers’ average income
$45,661

On its busiest stretch, High School Avenue carries 2.7 times the county average; trucks are 5.4% of it, below the county-wide 8.4%.

4Park AvenueSecondary road · 6,136vehicles250trucks · 4.1%
Road class
Secondary road
Congestion ratio
13.6%
Median trip time
30.0 min
Drivers’ median age
48.3 yrs
Drivers’ average income
$43,136

Park Avenue peaks at 6,136 vehicles a day, 2.6 times the county average; trucks are 4.1% of it, below the county-wide 8.4%.

5Broad StreetSecondary road · 5,832vehicles231trucks · 4.0%
Road class
Secondary road
Congestion ratio
12.6%
Median trip time
28.0 min
Drivers’ median age
47.9 yrs
Drivers’ average income
$45,773

Broad Street carries 2.5 times the county average at its busiest, 231 of them trucks (4.0%, below the county-wide 8.4%).

Ranked by trucks per day

Only named roads are listed. Some unnamed segments, such as ramps or unlabeled carriageways, may carry as much traffic as the roads shown.

Cars and light vehiclesTrucks
1US 98Trunk road · #1 by traffic15,120vehicles1,228trucks · 8.1%
2Main StreetPrimary road · #2 by traffic7,764vehicles407trucks · 5.2%
3High School AvenuePrimary road · #3 by traffic6,262vehicles336trucks · 5.4%
4MS 13 / MS 35Primary road · 3,591vehicles327trucks · 9.1%
Road class
Primary road
Congestion ratio
5.6%
Median trip time
33.0 min
Drivers’ median age
48.4 yrs
Drivers’ average income
$45,013

MS 13 / MS 35 carries 52% more than the county average on its busiest stretch, where the median trip lasts 33.0 minutes.

5Lumberton RoadPrimary road · 5,300vehicles313trucks · 5.9%
Road class
Primary road
Median trip time
28.1 min
Drivers’ median age
48.6 yrs
Drivers’ average income
$46,583

Lumberton Road carries 2.2 times the county average on its busiest stretch, where the median trip lasts 28.1 minutes.

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

MarionDepartment 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 Marion County

The same traffic breakdown for the areas closest to Marion County, Mississippi.

Need segment-level traffic data?

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