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Decatur County, Tennessee Traffic Counts

This page delivers traffic analytics for Decatur County, Tennessee. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for Decatur County, Tennessee among 164 road miles divided in 1,038 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 834 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

2,686

Trucks

20.4%

Average travel time

32.7 min

Congestion ratio

7.4%

Drivers’ average age

49.5 yrs

Drivers’ average income

$54,249

Our data indicates an estimated average traffic volume of 2,686 vehicles per day in Decatur County, Tennessee that results in 684,664 vehicle-miles traveled per day (≈250 million per year). The traffic stream is comprised of an average of 1 truck for every 5 vehicles. Typical time spent behind the wheel per trip is 32.7 minutes, which already accounts for delays at signals, intersections, and congestion.

Analytical insight

When compared to the Tennessee state averages: Decatur's average daily traffic volume is 63% lower than the state average - 2,686 vehicles per day against 7,251 - suggesting less traffic load per road, a critical factor for logistics and site planning. Across the whole network that adds up to 684,664 vehicle-miles traveled per day (≈250 million per year), roughly 0.4% of Tennessee's statewide total. The average trip takes 32.7 minutes, 2% higher than the state level. The congestion ratio of 7.4% is 54% lower, pointing to smoother traffic flow than the state level - crucial for traffic control improvement and logistics planning. 18% of counties in Tennessee see less traffic than Decatur's 2,686 vehicles per day. 52% of counties in Tennessee have a shorter average travel time than Decatur's 32.7 minutes.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic

Traffic

5,423

Trucks

21.8%

Average travel time

38.8 min

Congestion ratio

12.3%

Drivers’ average age

49.5 yrs

Drivers’ average income

$55,680

A significant volume of traffic in Decatur County, Tennessee utilizes the highway network. The average highway carries 5,423 vehicles per day, 601% more than the average non-highway road in the same area, which carries 774 vehicles per day. That average covers 70 highway road miles divided in 427 segments (average segment length 865 ft), together carrying 614,917 vehicle-miles traveled per day (≈224 million per year). That is more highway travel volume than 54% of counties in Tennessee. Trucks constitute 21.8% of highway traffic.

Analytical insight

At 21.8%, highway truck share is 39% higher than the state average, marking Decatur as a significant freight corridor - underscoring the importance of highway access for logistics operators. Decatur's highway truck share (21.8%) is higher than 85% of counties in Tennessee. 54% of counties in Tennessee see fewer highway trucks per day than Decatur's roughly 1,181.
non-highway traffic icon

Non-highway traffic

Traffic

774

Trucks

7.9%

Average travel time

28.5 min

Congestion ratio

3.9%

Drivers’ average age

50.2 yrs

Drivers’ average income

$47,855

The non-highway road network in Decatur County, Tennessee supports a substantial volume of traffic. The average non-highway road carries 774 vehicles per day, 86% less than the average highway in the same area, which carries 5,423 vehicles per day. That average covers 94 non-highway road miles divided in 611 segments (average segment length 813 ft), together carrying 69,747 vehicle-miles traveled per day (≈25.5 million per year). Trucks constitute 7.9% of non-highway traffic.

Analytical insight

Non-highway roads carry a truck concentration that's 64% lower than the highway network. The non-highway congestion ratio of 3.9% is 74% lower than the state level, suggesting more efficient local mobility than the state average. 52% of counties in Tennessee see shorter overall travel times than Decatur. Decatur's average driver income exceeds 20% of counties in Tennessee. The driver population here skews older than 73% of counties in Tennessee.

Time-of-Day & Seasonal Patterns

Analytical insight

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

Traffic Flow Profile Comparison

Metric

Decatur

Tennessee
Average

Difference

Traffic

2,686

7,251

-63.0%

Truck % (Total Traffic)

20.4%

11.3%

+79.5%

Truck % (Highway)

21.8%

15.6%

+39.5%

Avg. Travel Time

32.7 min

32.1 min

+2.0%

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.
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Data current as of:
Q3 2026

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