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Traffic heat map of Anderson County, South Carolina: 992 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 85 and SC 153

Anderson County, South Carolina Traffic Counts

TrafficZoom tracks traffic on 992 road miles in Anderson County, South Carolina, divided into 21,055 segments averaging 249 ft. Its busiest road, I 85, carries 84,094 vehicles a day, 13.9 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 Anderson County, South Carolina

Traffic

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

vehicles per day6,036
Trucks

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

9.6%
Average travel time

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

34.7 min
Congestion ratio

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

13.2%
Drivers’ average age

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

46.9 yrs
Drivers’ average income

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

$70,023

Our data shows 6,036 vehicles per day on the average road in Anderson County, South Carolina, and 5,801,478 vehicle-miles traveled per day (≈2.1 billion per year) across its 992 miles of monitored roads. Trucks are 9.6% of traffic, close to the 9.5% across South Carolina.

Busier roads than 69% of counties in South Carolina

At 6,036 vehicles per day, the average road in Anderson carries somewhat less traffic than the state average of 7,040 (14% less) - a factor worth weighing in site selection and logistics planning. In total volume terms, its road network carries about 3.9% of South Carolina's statewide total of vehicle-miles. 69% of counties in South Carolina see less traffic than Anderson's 6,036 vehicles per day.

Journey times here (34.7 minutes on average) closely track the state level. 60% of counties in South Carolina have a shorter average travel time than Anderson's 34.7 minutes.

At 27% lower than the state level, the 13.2% congestion ratio signals smoother traffic flow - fewer delays make delivery windows more reliable.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Anderson County, South Carolina

Trafficvehicles per day18,675
Trucks15.3%
Average travel time39.5 min
Congestion ratio29.8%
Drivers’ average age46.3 yrs
Drivers’ average income$72,030

Travel in Anderson County, South Carolina splits roughly evenly, with about half of it (46% of vehicle-miles) on highways. The average highway carries 18,675 vehicles per day, 264% more than the average non-highway road in the same area, which carries 5,125 vehicles per day.

Yet highways are only 13% of the road network, 128 miles in 1,416 segments, so each mile of them is 3.6 times as busy as the average road mile.

That is more highway travel volume than 86% of counties in South Carolina.

More highway trucks than 74% of counties in South Carolina

The concentration of trucks on highways (15.3%) is 12% higher than the state average for similar road classifications. The highway traffic mix is typical for South Carolina: neither freight- nor commuter-dominated.

By truck concentration, highways here outrank 57% of counties in South Carolina. Anderson's highway truck count is higher than 74% of counties in South Carolina, at roughly 2,854 trucks per day.

non-highway traffic icon

Non-highway Traffic in Anderson County, South Carolina

Trafficvehicles per day5,125
Trucks4.8%
Average travel time34.4 min
Congestion ratio12.0%
Drivers’ average age47.3 yrs
Drivers’ average income$68,982

Travel in Anderson County, South Carolina splits roughly evenly, with about half of it (54% of vehicle-miles) on local roads. A typical local road sees 5,125 vehicles per day.

Local roads make up 87% of the monitored road miles (864 miles in 19,639 segments) but carry less than their share of travel: 3,125,119 vehicle-miles traveled per day (≈1.1 billion per year). About 1 in 21 vehicles on non-highway roads is a truck (4.8%).

Local roads carry 68% fewer trucks by share than highways

Non-highway roads carry a truck concentration that's 68% lower than the highway network.

The non-highway congestion ratio of 12.0% is 29% lower than the state level, suggesting more efficient local mobility than the state average.

64% of counties in South Carolina see lower average driver income among trip origins than Anderson. The driver population here skews younger than 67% of counties in South Carolina.

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–6:00 PM, with volumes reaching approximately 79% higher than the daily average.
Weekend traffic:
Weekends are much quieter: volumes run about 29% below weekday levels, the signature of a commute-driven road network.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
August–October is the high season, with volumes +4% versus the annual average.
Lowest month:
July is the quietest month, with volumes -7% versus the annual average - an unusual summer low, when most places are at their busiest.

Data Finding: Hourly & Seasonal Patterns

In Anderson County, South Carolina, the peak hour concentrates about 7% of the day's traffic, and there is a noticeable seasonal swing of +4% in high season.

Anderson County vs. South Carolina Traffic Comparison

Anderson County stays close to the South Carolina average; the largest gap is its average daily traffic per road, 14% below.

MetricAnderson CountySouth Carolina averageDifference
Traffic6,0367,040-14.3%
Truck % (Total Traffic)9.6%9.5%+1.5%
Truck % (Highway)15.3%13.7%+11.6%
Avg. Travel Time34.7 min33.3 min+4.3%

How Anderson County compares

Anderson County against nearby counties

Anderson County tracks the 4 areas around it closely - no measure in this table sets it far apart from the areas immediately next to it, though it has the second busiest roads of the five. The same kind of road, simply more of it: traffic per road matches the areas around it while the network itself is larger.

Anderson County and the 4 nearest county-level areas by centroid distance, with the South Carolina average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Anderson County6,0369.6%5,801,47834.7 min13.2%
Abbeville County, South Carolina2,1427.5%511,31434.1 min6.6%
Hart County, Georgia4,0779.2%551,43130.6 min12.8%
Pickens County, South Carolina4,7175.4%2,443,95232.0 min12.3%
Greenville County, South Carolina10,9096.4%11,852,07834.2 min21.7%
South Carolina average7,0409.5%N/A33.3 min18.2%

Anderson County ranked within South Carolina

Highway travel volume places Anderson County #7 of 43 in South Carolina - the top quarter of the state.

Anderson County ranked among 46 county-level areas in South Carolina (1 = highest); measures without data in every county rank a smaller field, down to 43.
MeasureAnderson CountySouth Carolina rank
Traffic volume (AADT)6,036#15 of 46
Highway vehicle-miles per day2,676,359#7 of 43
Truck share on highways15.3%#19 of 43
Highway trucks per day2,854#12 of 43
Average travel time34.7 min#19 of 46
Average driver income$70,023#17 of 46
Average driver age46.9 yrs#31 of 46

Busiest roads in Anderson County, South Carolina

On their busiest stretches, the three busiest roads in Anderson County carry 51,882 vehicles a day on average, 8.6 times the typical road in the county (6,036).

I 85 is the busiest road, at 84,094 vehicles a day, 13,657 of them trucks (16.2%). No other road comes close: SC 153, in second place, carries 38,636. It also carries the most trucks.

Freight stands out on I 85: trucks are 16.2% of the traffic there, against 9.6% county-wide.

I 85 carries longer journeys than most roads here, with a median trip of 45.8 minutes against 34.7 county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 85Motorway · 84,094vehicles13,657trucks · 16.2%
Road class
Motorway
Congestion ratio
55.0%
Median trip time
45.8 min
Drivers’ median age
45.9 yrs
Drivers’ average income
$76,664

I 85 is one of the more congested roads here: trips take 55% longer than at free-flow speed, against 13% county-wide.

2SC 153Trunk road · 38,636vehicles2,603trucks · 6.7%
Road class
Trunk road
Congestion ratio
54.1%
Median trip time
35.1 min
Drivers’ median age
44.9 yrs
Drivers’ average income
$74,144

SC 153 carries 6.4 times the county average at its busiest, 2,603 of them trucks (6.7%, below the county-wide 9.6%).

3Earle E Morris Junior HighwayTrunk road · 32,917vehicles2,854trucks · 8.7%
Road class
Trunk road
Congestion ratio
55.4%
Median trip time
37.1 min
Drivers’ median age
44.9 yrs
Drivers’ average income
$74,992

Delays build on Earle E Morris Junior Highway: its congestion ratio of 55% over free-flow time is well above the county's 13%.

4Clemson BoulevardPrimary road · 31,018vehicles1,201trucks · 3.9%
Road class
Primary road
Congestion ratio
28.8%
Median trip time
35.9 min
Drivers’ median age
46.1 yrs
Drivers’ average income
$66,292

Clemson Boulevard carries 5.1 times the county average on its busiest stretch, where the median trip lasts 35.9 minutes.

5US 76Primary road · 29,823vehicles988trucks · 3.3%
Road class
Primary road
Congestion ratio
29.4%
Median trip time
35.0 min
Drivers’ median age
46.0 yrs
Drivers’ average income
$67,043

US 76 carries 4.9 times the county average on its busiest stretch, where the median trip lasts 35.0 minutes.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 85Motorway · #1 by traffic84,094vehicles13,657trucks · 16.2%
2Earle E Morris Junior HighwayTrunk road · #3 by traffic32,917vehicles2,854trucks · 8.7%
3SC 153Trunk road · #2 by traffic38,636vehicles2,603trucks · 6.7%
4SC 28Trunk road · 25,736vehicles1,882trucks · 7.3%
Road class
Trunk road
Congestion ratio
37.1%
Median trip time
38.7 min
Drivers’ median age
47.3 yrs
Drivers’ average income
$67,059

At 4.3 times the county average, SC 28 draws drivers from neighborhoods averaging $67,059 in household income.

5SC 76Trunk road · 23,777vehicles1,832trucks · 7.7%
Road class
Trunk road
Congestion ratio
34.9%
Median trip time
35.5 min
Drivers’ median age
46.2 yrs
Drivers’ average income
$70,322

The busiest stretch of SC 76 carries 3.9 times the county average; trucks are 7.7% of it, below the county-wide 9.6%.

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

AndersonDepartment 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 Anderson County

The same traffic breakdown for the areas closest to Anderson County, South Carolina.

Need segment-level traffic data?

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