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Traffic heat map of Lexington County, South Carolina: 905 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 26

Lexington County, South Carolina Traffic Counts

TrafficZoom tracks traffic on 905 road miles in Lexington County, South Carolina, divided into 22,671 segments averaging 211 ft. Its highways rank among the top 5 counties in South Carolina for trucks per day. 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 Lexington County, South Carolina

Traffic

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

vehicles per day9,165
Trucks

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

9.1%
Average travel time

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

31.5 min
Congestion ratio

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

18.5%
Drivers’ average age

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

44.7 yrs
Drivers’ average income

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

$79,550

Our data shows 9,165 vehicles per day on the average road in Lexington County, South Carolina, and 9,067,140 vehicle-miles traveled per day (≈3.3 billion per year) across its 905 miles of monitored roads. About 1 in 11 vehicles is a truck, in line with South Carolina (9.5%).

Shorter trips than 96% of counties in South Carolina

Lexington sees 30% higher average daily traffic volume than the state average (9,165 vehicles per day against 7,040), suggesting more demand on each road - a busier backdrop for retail sites, at the cost of slower access. In total volume terms, its road network carries about 6.2% of South Carolina's statewide total of vehicle-miles. Lexington carries more traffic than 87% of counties in South Carolina.

Journey times run 5% lower than the state level, at 31.5 minutes on average. On travel time, Lexington runs shorter than 96% of counties in South Carolina.

Congestion here (18.5%) closely tracks the state level.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Lexington County, South Carolina

Trafficvehicles per day23,782
Trucks14.4%
Average travel time37.5 min
Congestion ratio38.9%
Drivers’ average age44.1 yrs
Drivers’ average income$74,152

Travel in Lexington County, South Carolina splits roughly evenly, with about half of it (47% of vehicle-miles) on highways. The average highway carries 23,782 vehicles per day, 173% more than the average non-highway road in the same area, which carries 8,724 vehicles per day.

Highways make up 18% of the monitored road miles (159 miles, 665 segments), so they carry more than their share: 4,262,990 vehicle-miles traveled per day (≈1.6 billion per year).

By highway travel volume, Lexington outranks 88% of counties in South Carolina.

More highway trucks than 90% of counties in South Carolina

Highway truck concentration here runs 5% higher than the state average, at 14.4%. The highway traffic mix is typical for South Carolina: neither freight- nor commuter-dominated.

By truck concentration, highways here outrank 52% of counties in South Carolina. 90% of counties in South Carolina see fewer highway trucks per day than Lexington's roughly 3,425.

non-highway traffic icon

Non-highway Traffic in Lexington County, South Carolina

Trafficvehicles per day8,724
Trucks4.5%
Average travel time31.4 min
Congestion ratio17.8%
Drivers’ average age44.9 yrs
Drivers’ average income$81,788

Travel in Lexington County, South Carolina splits roughly evenly, with about half of it (53% of vehicle-miles) on local roads. A typical local road sees 8,724 vehicles per day.

Local roads make up 82% of the monitored road miles (746 miles in 22,006 segments) but carry less than their share of travel: 4,804,150 vehicle-miles traveled per day (≈1.8 billion per year). Trucks make up 4.5% of non-highway traffic, about 1 in 22 vehicles.

Younger drivers than 91% of counties in South Carolina

The concentration of trucks on non-highway roads is 69% lower than on highways.

Non-highway congestion (17.8%) runs slightly higher than the state level (6% higher).

Lexington's average driver income is higher than 84% of counties in South Carolina. 91% of counties in South Carolina have an older driver population than Lexington.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

In Lexington County, South Carolina, the peak hour concentrates about 7% of the day's traffic.

Lexington County vs. South Carolina Traffic Comparison

The average daily traffic per road sets Lexington County apart: 30% above the South Carolina average.

MetricLexington CountySouth Carolina averageDifference
Traffic9,1657,040+30.2%
Truck % (Total Traffic)9.1%9.5%-3.8%
Truck % (Highway)14.4%13.7%+5.2%
Avg. Travel Time31.5 min33.3 min-5.2%

How Lexington County compares

Lexington County against nearby counties

Against the 4 nearest areas, Lexington County carries 81.6% more traffic on a typical road and is 50.9% more congested; it has the second busiest roads of the five. It is where traffic concentrates in this corner of the map - the local bottleneck, with more vehicles per road AND less room to absorb them.

Lexington 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
Lexington County9,1659.1%9,067,14031.5 min18.5%
Saluda County, South Carolina2,1648.9%559,11939.7 min8.0%
Richland County, South Carolina9,6868.4%10,314,23032.7 min20.6%
Fairfield County, South Carolina2,22716.4%1,599,90035.0 min6.6%
Aiken County, South Carolina6,11411.2%4,778,13531.1 min13.8%
South Carolina average7,0409.5%N/A33.3 min18.2%

Lexington County ranked within South Carolina

Lexington County sits in the bottom quarter of the South Carolina field on average travel time, at #44 of 46.

Lexington 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.
MeasureLexington CountySouth Carolina rank
Traffic volume (AADT)9,165#7 of 46
Highway vehicle-miles per day4,262,990#6 of 43
Truck share on highways14.4%#21 of 43
Highway trucks per day3,425#5 of 43
Average travel time31.5 min#44 of 46
Average driver income$79,550#8 of 46
Average driver age44.7 yrs#42 of 46

Lexington County ranks #5 of 43 on highway truck volume but #44 of 46 on average travel time - the two describe the same roads and are worth reading together rather than either on its own.

Busiest roads in Lexington County, South Carolina

Traffic concentrates on a few corridors: the three busiest roads average 85,520 vehicles a day, against 9,165 on the average road in Lexington County.

I 26 is the busiest road, at 109,966 vehicles a day, 7,494 of them trucks (6.8%). Southeastern Beltway carries the most trucks, 14,421 a day (17.1% of its traffic), although it ranks #2 for all traffic.

Trucks make up 17.1% of traffic on Southeastern Beltway and 15.5% on I 20, against 9.1% across all roads in the county.

Trips using Southeastern Beltway are long: a median of 42.0 minutes against 31.5 county-wide, the mark of a through route.

Charleston Highway draws drivers from lower-income areas: their neighborhoods average $59,562 in household income, 25% below the county's $79,550.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 26Motorway · 109,966vehicles7,494trucks · 6.8%
Road class
Motorway
Congestion ratio
73.9%
Median trip time
36.3 min
Drivers’ median age
44.3 yrs
Drivers’ average income
$78,585

Travel on I 26's busiest stretch runs 74% over free-flow time, against 18% across the county, so expect slower peak hours.

2Southeastern BeltwayMotorway · 84,266vehicles14,421trucks · 17.1%
Road class
Motorway
Congestion ratio
73.2%
Median trip time
42.0 min
Drivers’ median age
43.5 yrs
Drivers’ average income
$68,857

A main artery: Southeastern Beltway's busiest stretch carries 9.2 times the county average; trucks are 17.1% of it, above the county-wide 9.1%.

3I 126Motorway · 62,328vehicles3,465trucks · 5.6%
Road class
Motorway
Congestion ratio
44.3%
Median trip time
31.6 min
Drivers’ median age
43.7 yrs
Drivers’ average income
$79,118

I 126 is a trunk route for the county, carrying 6.8 times the county average on its busiest stretch; trucks are 5.6% of it, below the county-wide 9.1%.

4I 20Motorway · 47,694vehicles7,372trucks · 15.5%
Road class
Motorway
Congestion ratio
46.1%
Median trip time
39.6 min
Drivers’ median age
44.5 yrs
Drivers’ average income
$80,337

I 20 carries 5.2 times the county average at its busiest, 7,372 of them trucks (15.5%, above the county-wide 9.1%).

5Lake DrivePrimary road · 46,121vehicles1,142trucks · 2.5%
Road class
Primary road
Congestion ratio
74.5%
Median trip time
34.8 min
Drivers’ median age
45.9 yrs
Drivers’ average income
$90,379

Lake Drive is one of the more congested roads here: trips take 74% longer than at free-flow speed, against 18% county-wide.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Southeastern BeltwayMotorway · #2 by traffic84,266vehicles14,421trucks · 17.1%
2I 26Motorway · #1 by traffic109,966vehicles7,494trucks · 6.8%
3I 20Motorway · #4 by traffic47,694vehicles7,372trucks · 15.5%
4I 126Motorway · #3 by traffic62,328vehicles3,465trucks · 5.6%
5Charleston HighwayTrunk road · 29,553vehicles2,671trucks · 9.0%
Road class
Trunk road
Congestion ratio
30.7%
Median trip time
32.6 min
Drivers’ median age
44.0 yrs
Drivers’ average income
$59,562

At 3.2 times the county average, Charleston Highway draws drivers from neighborhoods averaging $59,562 in household income.

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

LexingtonDepartment 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 Lexington County

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

Need segment-level traffic data?

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