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Traffic heat map of Dyer County, Tennessee: 321 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Lake Road and US 51

Dyer County, Tennessee Traffic Counts

TrafficZoom tracks traffic on 321 road miles in Dyer County, Tennessee, divided into 2,418 segments averaging 702 ft. Its busiest road, Lake Road, carries 18,848 vehicles a day, 3.8 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 Dyer County, Tennessee

Traffic

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

vehicles per day4,933
Trucks

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

10.7%
Average travel time

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

30.7 min
Congestion ratio

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

10.5%
Drivers’ average age

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

48.0 yrs
Drivers’ average income

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

$59,998

The average monitored road in Dyer County, Tennessee carries 4,933 vehicles per day. Across its 321 miles of monitored roads, that adds up to 1,076,790 vehicle-miles traveled per day (≈393 million per year). Trucks are 10.7% of traffic, close to the 11.3% across Tennessee.

Shorter trips than 79% of counties in Tennessee

Dyer sees 32% lower average daily traffic volume than the state average (4,933 vehicles per day against 7,251), suggesting less demand on each road - lighter roads for freight, but less passing trade for roadside retail. In total volume terms, its road network carries about 0.6% of Tennessee's statewide total of vehicle-miles. By volume, Dyer's 4,933 vehicles per day outpaces 64% of counties in Tennessee.

Journey times here (30.7 minutes on average) closely track the state level. On travel time, Dyer runs shorter than 79% of counties in Tennessee.

Congestion runs 35% lower than the state level, at a ratio of 10.5%, which means smoother traffic flow - travel times are easy to plan around for scheduled deliveries.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Dyer County, Tennessee

Trafficvehicles per day8,191
Trucks14.3%
Average travel time34.8 min
Congestion ratio13.4%
Drivers’ average age47.9 yrs
Drivers’ average income$59,730

Highways carry more than half of all travel in Dyer County, Tennessee (57% of vehicle-miles). The average highway carries 8,191 vehicles per day, 99% more than the average non-highway road in the same area, which carries 4,120 vehicles per day.

With 35% of the road miles (113 miles in 483 segments), highways punch above their length, carrying 616,646 vehicle-miles traveled per day (≈225 million per year).

That is more highway travel volume than 55% of counties in Tennessee.

A typical mix of freight and passenger traffic

At 14.3%, highway truck share is 8% lower than the state average. The highway traffic mix is typical for Tennessee: neither freight- nor commuter-dominated.

58% of counties in Tennessee see a lower highway truck share than Dyer's 14.3%. Dyer's highway truck count is lower than 58% of counties in Tennessee, at roughly 1,171 trucks per day.

non-highway traffic icon

Non-highway Traffic in Dyer County, Tennessee

Trafficvehicles per day4,120
Trucks5.8%
Average travel time29.6 min
Congestion ratio9.8%
Drivers’ average age48.1 yrs
Drivers’ average income$60,213

A significant share of driving in Dyer County, Tennessee, 43% of vehicle-miles, happens on local roads. The average non-highway road carries 4,120 vehicles per day.

Local roads make up 65% of the monitored road miles (208 miles in 1,935 segments) but carry less than their share of travel: 460,144 vehicle-miles traveled per day (≈168 million per year). About 1 in 17 vehicles on non-highway roads is a truck (5.8%).

Local congestion 37% below the Tennessee average

Compared to highways, non-highway routes see 60% fewer trucks by share.

Non-highway congestion (9.8%) runs 37% lower than the state average, pointing to smoother local traffic flow.

Dyer's average driver income is lower than 53% of counties in Tennessee. 57% of counties in Tennessee have an older driver population than Dyer.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–8:00 AM and a long afternoon plateau from 3:00 PM to 7:00 PM, with volumes reaching approximately 76% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 19% below weekday levels, the usual weekend dip.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
Traffic is nearly flat through the year: even May–July, the busiest stretch, runs only +1% versus the annual average.
Lowest month:
December is the quietest month, with volumes -4% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Dyer County, Tennessee, the peak hour concentrates about 7% of the day's traffic, and traffic stays steady through the year (+1% in high season).

Dyer County vs. Tennessee Traffic Comparison

Of the four measures, average daily traffic per road differs most: Dyer County runs 32% below the Tennessee average.

MetricDyer CountyTennessee averageDifference
Traffic4,9337,251-32.0%
Truck % (Total Traffic)10.7%11.3%-5.9%
Truck % (Highway)14.3%15.6%-8.4%
Avg. Travel Time30.7 min32.1 min-4.3%

How Dyer County compares

Dyer County has the busiest roads among its nearby counties

Set against the average of the 4 areas nearest to it, Dyer County carries 121.1% more traffic on a typical road and is 43.5% more congested; it has the busiest roads of the five. It is where traffic concentrates in this corner of the map - the local bottleneck, with more vehicles per road AND less room to absorb them.

Dyer County and the 4 nearest county-level areas by centroid distance, with the Tennessee average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Dyer County4,93310.7%1,076,79030.7 min10.5%
Crockett County, Tennessee2,5879.4%505,71931.9 min7.6%
Lake County, Tennessee1,6838.4%101,18728.1 min7.9%
Obion County, Tennessee2,9169.6%757,75633.4 min8.2%
Pemiscot County, Missouri1,73922.3%772,42331.8 min5.6%
Tennessee average7,25111.3%N/A32.1 min16.1%

Dyer County ranked within Tennessee

Dyer County sits in the bottom quarter of the Tennessee field on average travel time, at #75 of 95.

Dyer County ranked among 95 county-level areas in Tennessee (1 = highest); measures without data in every county rank a smaller field, down to 86.
MeasureDyer CountyTennessee rank
Traffic volume (AADT)4,933#35 of 95
Highway vehicle-miles per day616,646#39 of 86
Truck share on highways14.3%#37 of 86
Highway trucks per day1,171#50 of 86
Average travel time30.7 min#75 of 95
Average driver income$59,998#51 of 95
Average driver age48.0 yrs#55 of 95

Busiest roads in Dyer County, Tennessee

The three busiest roads in Dyer County average 15,910 vehicles a day, 3.2 times the county average of 4,933 across all its monitored roads.

Lake Road is the busiest road, at 18,848 vehicles a day, 838 of them trucks (4.5%). Caruthersville Bridge carries the most trucks, 2,358 a day (21.6% of its traffic), although it ranks #5 for all traffic.

Trucks make up 21.6% of traffic on Caruthersville Bridge and 19.3% on I 155, against 10.7% across all roads in the county.

Caruthersville Bridge carries longer journeys than most roads here, with a median trip of 47.2 minutes against 30.7 county-wide.

Few trucks use US 51: 3.7% of its traffic, under half the county's 10.7%.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Lake RoadTrunk road · 18,848vehicles838trucks · 4.5%
Road class
Trunk road
Median trip time
31.3 min
Drivers’ median age
47.9 yrs
Drivers’ average income
$61,649

On its busiest stretch, Lake Road carries 3.8 times the county average; trucks are 4.5% of it, below the county-wide 10.7%.

2US 51Primary road · 15,726vehicles586trucks · 3.7%
Road class
Primary road
Congestion ratio
17.9%
Median trip time
29.1 min
Drivers’ median age
48.1 yrs
Drivers’ average income
$57,235

US 51 is one of the more congested roads here: trips take 18% longer than at free-flow speed, against 10% county-wide.

3Saint John AvenuePrimary road · 13,157vehicles778trucks · 5.9%
Road class
Primary road
Congestion ratio
17.7%
Median trip time
28.2 min
Drivers’ median age
47.7 yrs
Drivers’ average income
$58,052

Delays build on Saint John Avenue: its congestion ratio of 18% over free-flow time is well above the county's 10%.

4US 412Motorway · 12,310vehicles1,875trucks · 15.2%
Road class
Motorway
Congestion ratio
14.3%
Median trip time
43.6 min
Drivers’ median age
47.7 yrs
Drivers’ average income
$61,424

US 412 carries through traffic: the median trip using it lasts 43.6 minutes, against 30.7 for the county.

5Caruthersville BridgeMotorway · 10,928vehicles2,358trucks · 21.6%
Road class
Motorway
Median trip time
47.2 min
Drivers’ median age
49.4 yrs
Drivers’ average income
$63,184

Caruthersville Bridge peaks at 10,928 vehicles a day, 2.2 times the county average; trucks are 21.6% of it, above the county-wide 10.7%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Caruthersville BridgeMotorway · #5 by traffic10,928vehicles2,358trucks · 21.6%
2I 155Motorway · 10,890vehicles2,106trucks · 19.3%
Road class
Motorway
Congestion ratio
11.7%
Median trip time
41.7 min
Drivers’ median age
48.2 yrs
Drivers’ average income
$62,938

Drivers on I 155 are on long journeys, a median 41.7 minutes against 30.7 county-wide: a through route more than a local street.

3US 412Motorway · #4 by traffic12,310vehicles1,875trucks · 15.2%
4Lake RoadTrunk road · #1 by traffic18,848vehicles838trucks · 4.5%
5Saint John AvenuePrimary road · #3 by traffic13,157vehicles778trucks · 5.9%
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

DyerDepartment 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 Dyer County

The same traffic breakdown for the areas closest to Dyer County, Tennessee.

Need segment-level traffic data?

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