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Traffic heat map of Jefferson County, Tennessee: 283 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 40 and I 81

Jefferson County, Tennessee Traffic Counts

How busy are the roads of Jefferson County, Tennessee? We measure 283 road miles, divided into 2,513 segments, with multi-sourced, cross-verified mobile and sensor data. About 1 in 6 vehicles here is a truck, against 1 in 9 across Tennessee. 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 Jefferson County, Tennessee

Traffic

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

vehicles per day5,707
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.

34.3 min
Congestion ratio

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

12.6%
Drivers’ average age

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

49.4 yrs
Drivers’ average income

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

$65,698

Our data shows 5,707 vehicles per day on the average road in Jefferson County, Tennessee, and 2,559,378 vehicle-miles traveled per day (≈934 million per year) across its 283 miles of monitored roads. About 1 in 6 vehicles is a truck, well above the 11.3% across Tennessee - a freight-heavy mix.

Longer trips than 76% of counties in Tennessee

At 5,707 vehicles per day, the average monitored road in Jefferson carries 21% less traffic than the state average of 7,251, suggesting less demand on each road - a factor worth weighing in site selection and logistics planning. In total volume terms, its road network carries about 1.4% of Tennessee's statewide total of vehicle-miles. Jefferson carries more traffic than 74% of counties in Tennessee.

At 34.3 minutes, the average travel time is 7% higher than the state level. On travel time, Jefferson runs longer than 76% of counties in Tennessee.

Congestion runs 22% lower than the state level, at a ratio of 12.6%, which means smoother traffic flow - crucial for traffic control improvement and logistics planning.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Jefferson County, Tennessee

Trafficvehicles per day11,787
Trucks20.5%
Average travel time46.0 min
Congestion ratio21.3%
Drivers’ average age49.2 yrs
Drivers’ average income$65,368

Most travel in Jefferson County, Tennessee happens on highways, 80% of all vehicle-miles. The average highway carries 11,787 vehicles per day, 213% more than the average non-highway road in the same area, which carries 3,763 vehicles per day.

Highways make up 42% of the monitored road miles (118 miles, 609 segments), so they carry more than their share: 2,043,630 vehicle-miles traveled per day (≈746 million per year).

By highway travel volume, Jefferson outranks 88% of counties in Tennessee.

More highway trucks than 78% of counties in Tennessee

At 20.5%, highway truck share is 31% higher than the state average. Highways here lean toward freight, so highway access is a real asset for logistics operators.

76% of counties in Tennessee see a lower highway truck share than Jefferson's 20.5%. By raw truck volume, Jefferson carries more highway trucks than 78% of counties in Tennessee.

non-highway traffic icon

Non-highway Traffic in Jefferson County, Tennessee

Trafficvehicles per day3,763
Trucks6.7%
Average travel time30.5 min
Congestion ratio9.8%
Drivers’ average age50.5 yrs
Drivers’ average income$66,413

At 20% of vehicle-miles, local roads carry a smaller share of the traffic in Jefferson County, Tennessee than highways. The average non-highway road carries 3,763 vehicles per day.

Local roads make up 58% of the monitored road miles (164 miles in 1,904 segments) but carry less than their share of travel: 515,748 vehicle-miles traveled per day (≈188 million per year). Trucks make up 6.7% of non-highway traffic, about 1 in 15 vehicles.

Drivers from higher-income areas than 69% of counties in Tennessee

The concentration of trucks on non-highway roads is 67% lower than on highways.

At 37% lower than the state level, the non-highway congestion ratio of 9.8% signals easier movement on local roads.

Trip origins here have higher average income than 69% of counties in Tennessee. 69% of counties in Tennessee have a younger driver population than Jefferson.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–8:00 AM and PM peak 3:00 PM–6:00 PM, with volumes reaching approximately 72% higher than the daily average.
Weekend traffic:
Weekend traffic is about as busy as on weekdays (-4%): leisure and through trips largely replace the commute.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +7% versus the annual average.
Lowest month:
January is the quietest month, with volumes -15% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Jefferson County, Tennessee, the peak hour concentrates about 7% of the day's traffic, and there is a noticeable seasonal swing of +7% in high season.

Jefferson County vs. Tennessee Traffic Comparison

Of the four measures, truck share differs most: Jefferson County runs 56% above the Tennessee average. Its highway truck share is also 31% above.

MetricJefferson CountyTennessee averageDifference
Traffic5,7077,251-21.3%
Truck % (Total Traffic)17.7%11.3%+56.0%
Truck % (Highway)20.5%15.6%+31.2%
Avg. Travel Time34.3 min32.1 min+6.9%

How Jefferson County compares

Jefferson County against nearby counties

Set against the average of the 4 areas nearest to it, Jefferson County runs 5.4 percentage points more truck traffic; it has the fourth busiest 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.

Jefferson 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
Jefferson County5,70717.7%2,559,37834.3 min12.6%
Hamblen County, Tennessee7,61213.0%1,754,90437.1 min18.0%
Grainger County, Tennessee3,01310.6%510,27932.8 min8.0%
Sevier County, Tennessee12,2878.2%3,556,72032.8 min24.4%
Cocke County, Tennessee5,78517.2%1,268,33136.3 min13.7%
Tennessee average7,25111.3%N/A32.1 min16.1%

Jefferson County ranked within Tennessee

Jefferson County sits in the top quarter of the Tennessee field on highway travel volume, at #11 of 86.

Jefferson County ranked among 95 county-level areas in Tennessee (1 = highest); measures without data in every county rank a smaller field, down to 86.
MeasureJefferson CountyTennessee rank
Traffic volume (AADT)5,707#25 of 95
Highway vehicle-miles per day2,043,630#11 of 86
Truck share on highways20.5%#21 of 86
Highway trucks per day2,414#20 of 86
Average travel time34.3 min#24 of 95
Average driver income$65,698#30 of 95
Average driver age49.4 yrs#30 of 95

Busiest roads in Jefferson County, Tennessee

Traffic concentrates on a few corridors: the three busiest roads average 41,885 vehicles a day, against 5,707 on the average road in Jefferson County.

I 40 leads with 52,704 vehicles a day, 12,974 of them trucks (24.6%). I 81 is practically level with it at 52,322. It also carries the most trucks.

Trips using I 40 are long: a median of 53.4 minutes against 34.3 county-wide, the mark of a through route.

Few trucks use Broadway Boulevard: 7.2% of its traffic, under half the county's 17.7%.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 40Motorway · 52,704vehicles12,974trucks · 24.6%
Road class
Motorway
Congestion ratio
46.1%
Median trip time
53.4 min
Drivers’ median age
49.0 yrs
Drivers’ average income
$64,247

Delays build on I 40: its congestion ratio of 46% over free-flow time is well above the county's 13%.

2I 81Motorway · 52,322vehicles12,716trucks · 24.3%
Road class
Motorway
Congestion ratio
48.8%
Median trip time
53.0 min
Drivers’ median age
48.9 yrs
Drivers’ average income
$63,693

Travel on I 81's busiest stretch runs 49% over free-flow time, against 13% across the county, so expect slower peak hours.

3Broadway BoulevardTrunk road · 20,630vehicles1,482trucks · 7.2%
Road class
Trunk road
Congestion ratio
22.8%
Median trip time
36.6 min
Drivers’ median age
49.2 yrs
Drivers’ average income
$69,057

Broadway Boulevard carries 3.6 times the county average at its busiest, 1,482 of them trucks (7.2%, below the county-wide 17.7%).

4Andrew Johnson HighwayTrunk road · 19,687vehicles1,496trucks · 7.6%
Road class
Trunk road
Congestion ratio
24.7%
Median trip time
39.4 min
Drivers’ median age
49.2 yrs
Drivers’ average income
$69,618

Andrew Johnson Highway carries 3.4 times the county average on its busiest stretch, where the median trip lasts 39.4 minutes.

5SR 92Trunk road · 18,277vehicles1,412trucks · 7.7%
Road class
Trunk road
Congestion ratio
19.9%
Median trip time
36.5 min
Drivers’ median age
50.2 yrs
Drivers’ average income
$66,513

At 3.2 times the county average, SR 92 draws drivers from neighborhoods averaging $66,513 in household income.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 40Motorway · #1 by traffic52,704vehicles12,974trucks · 24.6%
2I 81Motorway · #2 by traffic52,322vehicles12,716trucks · 24.3%
3Andrew Johnson HighwayTrunk road · #4 by traffic19,687vehicles1,496trucks · 7.6%
4Broadway BoulevardTrunk road · #3 by traffic20,630vehicles1,482trucks · 7.2%
5SR 92Trunk road · #5 by traffic18,277vehicles1,412trucks · 7.7%
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

JeffersonDepartment 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 Jefferson County

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

Need segment-level traffic data?

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