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Union County, Tennessee Traffic Counts

This page delivers traffic analytics for Union County, Tennessee. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for Union County, Tennessee among 97 road miles divided in 957 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 535 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

Traffic

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

4,387

Trucks

Trucks

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

7.3%

Average travel time

Average travel time

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

33.6 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.

11.9%

Drivers’ average age

Drivers’ average age

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

48.9 yrs

Drivers’ average income

Drivers’ average income

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

$62,875

Our data indicates an estimated average traffic volume of 4,387 vehicles per day in Union County, Tennessee that results in 347,215 vehicle-miles traveled per day (≈127 million per year). The traffic stream is comprised of an average of 1 truck for every 14 vehicles. Typical time spent behind the wheel per trip is 33.6 minutes, which already accounts for delays at signals, intersections, and congestion.

Analytical insight

When compared to the Tennessee state averages: At 4,387 vehicles per day, the average monitored road in Union carries 40% less traffic than the state average of 7,251 vehicles per day - a critical factor for logistics and site planning. Across the whole network that adds up to 347,215 vehicle-miles traveled per day (≈127 million per year), roughly 0.2% of Tennessee's statewide total. Journey times run 5% higher than the state level, at 33.6 minutes on average. At 26% lower than the state level, the 11.9% congestion ratio signals smoother traffic flow - crucial for traffic control improvement and logistics planning. 55% of counties in Tennessee see less traffic than Union's 4,387 vehicles per day. 71% of counties in Tennessee have a shorter average travel time than Union's 33.6 minutes.

Highway vs. Non-Highway Traffic Analysis

Analytical insight

N/A
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Non-highway traffic

Traffic

Traffic

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

4,387

Trucks

Trucks

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

7.3%

Average travel time

Average travel time

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

33.6 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.

11.9%

Drivers’ average age

Drivers’ average age

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

48.9 yrs

Drivers’ average income

Drivers’ average income

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

$62,875

The non-highway road network in Union County, Tennessee supports a substantial volume of traffic. The average non-highway road carries 4,387 vehicles per day. That average covers 97 non-highway road miles divided in 957 segments (average segment length 535 ft), together carrying 347,215 vehicle-miles traveled per day (≈127 million per year). Trucks constitute 7.3% of non-highway traffic.

Analytical insight

Non-highway congestion (11.9%) runs 23% lower than the state average, pointing to smoother local traffic flow. Union's overall average travel time exceeds 71% of counties in Tennessee. Union's average driver income exceeds 61% of counties in Tennessee. Union's median driver age is higher than 60% of counties in Tennessee.

Time-of-Day & Seasonal Patterns

Analytical insight

In Union County, Tennessee, the peak hour concentrates about 8% of the day's traffic.

Traffic Flow Profile Comparison

Metric

Union

Tennessee
Average

Difference

Traffic

4,387

7,251

-39.5%

Truck % (Total Traffic)

7.3%

11.3%

-35.6%

Truck % (Highway)

15.6%

Avg. Travel Time

33.6 min

32.1 min

+4.7%

How Union County compares

Union County against nearby areas

Against the 4 nearest areas, Union County moves 9.5% of the total daily travel and carries 31.4% less traffic on a typical road; it has the fourth busiest roads of the five. Quieter and more local than the areas around it on both counts: less traffic, and less of what there is arriving by truck.

Union 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
Union County4,3877.3%347,21533.6 min11.9%
Claiborne County, Tennessee5,4818.9%658,09031.6 min20.0%
Grainger County, Tennessee3,01310.6%510,27932.8 min8.0%
Campbell County, Tennessee6,22218.5%1,428,06037.7 min13.7%
Knox County, Tennessee10,8609.8%12,073,91131.9 min22.1%
Tennessee average7,25111.3%N/A32.1 min16.1%

Union County ranked within Tennessee

Where Union County sits among Tennessee's county-level areas on each measure. Rank 1 is the highest value in the state, whether or not that is the outcome you want; the field size differs by measure because not every county carries highway data.
MeasureUnion CountyTennessee rank
Traffic volume (AADT)4,387#43 of 95
Average travel time33.6 min#28 of 95
Average driver income$62,875#38 of 95
Average driver age48.9 yrs#39 of 95

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

TennesseeDepartment 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.
TrafficZoom methodology
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Data current as of:
Q3 2026

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Counties near Union County

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

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