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Traffic heat map of Clayton County, Georgia: 429 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 75 and Perimeter

Clayton County, Georgia Traffic Counts

How busy are the roads of Clayton County, Georgia? We measure 429 road miles, divided into 12,907 segments, with multi-sourced, cross-verified mobile and sensor data. It is one of the top 5 counties in Georgia for highway travel volume. 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 Clayton County, Georgia

Traffic

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

vehicles per day11,779
Trucks

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

9.7%
Average travel time

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

38.8 min
Congestion ratio

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

21.8%
Drivers’ average age

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

42.8 yrs
Drivers’ average income

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

$74,747

Our data shows 11,779 vehicles per day on the average road in Clayton County, Georgia, and 7,360,119 vehicle-miles traveled per day (≈2.7 billion per year) across its 429 miles of monitored roads. About 1 in 10 vehicles is a truck, in line with Georgia (9.7%).

Busier roads than 97% of counties in Georgia

At 11,779 vehicles per day, the average monitored road in Clayton carries 59% more traffic than the state average of 7,398, suggesting more demand on each road - heavy exposure for roadside retail, and tight road space for deliveries. Network-wide, Clayton accounts for about 2.6% of Georgia's statewide total of vehicle-miles. Clayton carries more traffic than 97% of counties in Georgia.

At 38.8 minutes, the average travel time is 16% higher than the state level. Its average travel time of 38.8 minutes is longer than 87% of counties in Georgia.

The congestion ratio of 21.8% is 30% higher, pointing to more pronounced congestion than the state level - expect slower peak-hour deliveries and less predictable arrival times.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Clayton County, Georgia

Trafficvehicles per day27,955
Trucks12.3%
Average travel time44.1 min
Congestion ratio38.7%
Drivers’ average age42.8 yrs
Drivers’ average income$77,973

A little more than half of the driving in Clayton County, Georgia happens on highways: 61% of all vehicle-miles. The average highway carries 27,955 vehicles per day, 176% more than the average non-highway road in the same area, which carries 10,116 vehicles per day.

Highways make up 22% of the monitored road miles (96 miles, 1,203 segments), so they carry more than their share: 4,498,128 vehicle-miles traveled per day (≈1.6 billion per year).

That puts Clayton among the top 5 counties in Georgia for highway travel volume.

More highway trucks than 95% of counties in Georgia

The concentration of trucks on highways (12.3%) is 9% lower than the state average for similar road classifications. The highway traffic mix is typical for Georgia: neither freight- nor commuter-dominated.

By truck concentration, highways here trail 56% of counties in Georgia. By raw truck volume, Clayton carries more highway trucks than 95% of counties in Georgia.

non-highway traffic icon

Non-highway Traffic in Clayton County, Georgia

Trafficvehicles per day10,116
Trucks5.5%
Average travel time38.2 min
Congestion ratio20.1%
Drivers’ average age42.8 yrs
Drivers’ average income$70,744

Local roads carry a significant share of travel in Clayton County, Georgia: 39% of all vehicle-miles. On the average non-highway road, that comes to 10,116 vehicles per day.

Local roads make up 78% of the monitored road miles (333 miles in 11,704 segments) but carry less than their share of travel: 2,861,990 vehicle-miles traveled per day (≈1.0 billion per year). The truck share on non-highway roads is 5.5%.

Younger drivers than 94% of counties in Georgia

Non-highway roads carry a truck concentration that's 55% lower than the highway network.

The non-highway congestion ratio of 20.1% is 24% higher than the state level, suggesting slower local mobility than the state average.

75% of counties in Georgia see lower average driver income among trip origins than Clayton. The driver population here skews younger than 94% of counties in Georgia.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–9:00 AM and PM peak 4:00 PM–7:00 PM, with volumes reaching approximately 59% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 13% below weekday levels, the usual weekend dip.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
Traffic is nearly flat through the year: even March–May, the busiest stretch, runs only +2% versus the annual average.
Lowest month:
January is the quietest month, with volumes -6% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Clayton County, Georgia, the peak hour concentrates about 7% of the day's traffic, and traffic stays steady through the year (+2% in high season).

Clayton County vs. Georgia Traffic Comparison

The average daily traffic per road sets Clayton County apart: 59% above the Georgia average. Its average travel time is also 16% above.

MetricClayton CountyGeorgia averageDifference
Traffic11,7797,398+59.2%
Truck % (Total Traffic)9.7%9.7%-0.1%
Truck % (Highway)12.3%13.6%-9.2%
Avg. Travel Time38.8 min33.6 min+15.5%

How Clayton County compares

Clayton County against nearby counties

Nothing in this table sets Clayton County sharply apart from the 4 areas nearest to it, though it has the second busiest roads of the five.

Clayton County and the 4 nearest county-level areas by centroid distance, with the Georgia average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Clayton County11,7799.7%7,360,11938.8 min21.8%
Fayette County, Georgia7,2335.2%2,457,57433.6 min17.2%
Henry County, Georgia7,8929.6%5,998,35532.0 min18.9%
Spalding County, Georgia6,54910.2%1,651,12637.6 min15.6%
DeKalb County, Georgia14,1777.9%17,970,15834.7 min27.0%
Georgia average7,3989.7%N/A33.6 min16.8%

Clayton County ranked within Georgia

Clayton County sits in the top quarter of the Georgia field on highway travel volume, at #5 of 147.

Clayton County ranked among 159 county-level areas in Georgia (1 = highest); measures without data in every county rank a smaller field, down to 147.
MeasureClayton CountyGeorgia rank
Traffic volume (AADT)11,779#6 of 159
Highway vehicle-miles per day4,498,128#5 of 147
Truck share on highways12.3%#83 of 147
Highway trucks per day3,444#8 of 147
Average travel time38.8 min#21 of 159
Average driver income$74,747#41 of 159
Average driver age42.8 yrs#150 of 159

Clayton County ranks #5 of 147 on highway travel volume but #150 of 159 on average driver age - the two describe the same roads and are worth reading together rather than either on its own.

Busiest roads in Clayton County, Georgia

The three busiest roads in Clayton County average 133,534 vehicles a day, 11.3 times the county average of 11,779 across all its monitored roads.

I 75 leads with 166,926 vehicles a day, 19,712 of them trucks (11.8%). Perimeter carries the most trucks, 21,553 a day (14.2% of its traffic), although it ranks #2 for all traffic.

Freight stands out on I 675: trucks are 17.4% of the traffic there, against 9.7% county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 75Motorway · 166,926vehicles19,712trucks · 11.8%
Road class
Motorway
Congestion ratio
93.5%
Median trip time
48.8 min
Drivers’ median age
41.7 yrs
Drivers’ average income
$81,626

Delays build on I 75: its congestion ratio of 94% over free-flow time is well above the county's 22%.

2PerimeterMotorway · 152,184vehicles21,553trucks · 14.2%
Road class
Motorway
Congestion ratio
90.4%
Median trip time
47.9 min
Drivers’ median age
43.6 yrs
Drivers’ average income
$77,136

Travel on Perimeter's busiest stretch runs 90% over free-flow time, against 22% across the county, so expect slower peak hours.

3I 85Motorway · 81,492vehicles10,257trucks · 12.6%
Road class
Motorway
Congestion ratio
59.9%
Median trip time
43.2 min
Drivers’ median age
43.4 yrs
Drivers’ average income
$92,999

I 85 is a trunk route for the county, carrying 6.9 times the county average on its busiest stretch; trucks are 12.6% of it, above the county-wide 9.7%.

4I 675Motorway · 72,999vehicles12,728trucks · 17.4%
Road class
Motorway
Congestion ratio
60.3%
Median trip time
47.6 min
Drivers’ median age
43.4 yrs
Drivers’ average income
$79,472

I 675 carries 6.2 times the county average at its busiest, 12,728 of them trucks (17.4%, above the county-wide 9.7%).

5Tara BoulevardTrunk road · 43,889vehicles3,815trucks · 8.7%
Road class
Trunk road
Congestion ratio
39.0%
Median trip time
38.1 min
Drivers’ median age
43.4 yrs
Drivers’ average income
$71,796

At 3.7 times the county average, Tara Boulevard draws drivers from neighborhoods averaging $71,796 in household income.

Ranked by trucks per day

Cars and light vehiclesTrucks
1PerimeterMotorway · #2 by traffic152,184vehicles21,553trucks · 14.2%
2I 75Motorway · #1 by traffic166,926vehicles19,712trucks · 11.8%
3I 675Motorway · #4 by traffic72,999vehicles12,728trucks · 17.4%
4I 85Motorway · #3 by traffic81,492vehicles10,257trucks · 12.6%
5Tara BoulevardTrunk road · #5 by traffic43,889vehicles3,815trucks · 8.7%
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

ClaytonDepartment 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 Clayton County

The same traffic breakdown for the areas closest to Clayton County, Georgia.

Need segment-level traffic data?

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