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Traffic heat map of Kershaw County, South Carolina: 484 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 20 and DeKalb Street

Kershaw County, South Carolina Traffic Counts

How busy are the roads of Kershaw County, South Carolina? We measure 484 road miles, divided into 5,017 segments, with multi-sourced, cross-verified mobile and sensor data. Its busiest road, I 20, carries 39,641 vehicles a day, 8.7 times the average road. 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 Kershaw County, South Carolina

Traffic

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

vehicles per day4,564
Trucks

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

10.8%
Average travel time

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

33.1 min
Congestion ratio

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

11.1%
Drivers’ average age

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

47.3 yrs
Drivers’ average income

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

$70,446

Our data shows 4,564 vehicles per day on the average road in Kershaw County, South Carolina, and 2,266,071 vehicle-miles traveled per day (≈827 million per year) across its 484 miles of monitored roads. Trucks are 10.8% of traffic, close to the 9.5% across South Carolina.

Congestion 39% below the South Carolina average

At 4,564 vehicles per day, the average monitored road in Kershaw carries 35% less traffic than the state average of 7,040, suggesting less demand on each road - less drive-by exposure for retail, but easier access for deliveries. Across the whole network, that travel is about 1.5% of South Carolina's statewide total. By volume, Kershaw's 4,564 vehicles per day outpaces 60% of counties in South Carolina.

Journey times here (33.1 minutes on average) closely track the state level. Its average travel time of 33.1 minutes is shorter than 69% of counties in South Carolina.

The congestion ratio of 11.1% is 39% lower, pointing to smoother traffic flow than the state level - fewer delays make delivery windows more reliable.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Kershaw County, South Carolina

Trafficvehicles per day9,531
Trucks14.7%
Average travel time40.6 min
Congestion ratio17.9%
Drivers’ average age46.6 yrs
Drivers’ average income$69,788

Highways carry about half of all travel in Kershaw County, South Carolina, 54% of vehicle-miles. The average highway carries 9,531 vehicles per day, 140% more than the average non-highway road in the same area, which carries 3,968 vehicles per day.

Yet highways are only 18% of the road network, 86 miles in 537 segments, so each mile of them is 3.1 times as busy as the average road mile.

By highway travel volume, Kershaw outranks 50% of counties in South Carolina.

A typical mix of freight and passenger traffic

At 14.7%, highway truck share is 7% higher than the state average. The highway traffic mix is typical for South Carolina: neither freight- nor commuter-dominated.

Kershaw's highway truck share (14.7%) is higher than 55% of counties in South Carolina. By raw truck volume, Kershaw carries more highway trucks than 50% of counties in South Carolina.

non-highway traffic icon

Non-highway Traffic in Kershaw County, South Carolina

Trafficvehicles per day3,968
Trucks6.2%
Average travel time32.2 min
Congestion ratio10.3%
Drivers’ average age47.6 yrs
Drivers’ average income$70,852

Local roads carry about half of all travel in Kershaw County, South Carolina, 46% of vehicle-miles. On the average non-highway road, that comes to 3,968 vehicles per day.

Local roads make up 82% of the monitored road miles (398 miles in 4,480 segments) but carry less than their share of travel: 1,037,113 vehicle-miles traveled per day (≈379 million per year). The truck share on non-highway roads is 6.2%.

Local congestion 39% below the South Carolina average

The concentration of trucks on non-highway roads is 58% lower than on highways.

The non-highway congestion ratio of 10.3% is 39% lower than the state level, suggesting more efficient local mobility than the state average.

67% of counties in South Carolina see lower average driver income among trip origins than Kershaw. Kershaw's median driver age is lower than 60% of counties in South Carolina.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–8:00 AM and PM peak 4:00 PM–6:00 PM, with volumes reaching approximately 80% higher than the daily average.
Weekend traffic:
Weekends are busier than weekdays: volumes run about 7% above weekday levels, which usually points to leisure, tourism or shopping traffic.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
May–July is the high season, with volumes +13% versus the annual average.
Lowest month:
January is the quietest month, with volumes -18% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Kershaw County, South Carolina, the peak hour concentrates about 8% of the day's traffic, and there is a strong seasonal swing of +13% in high season.

Kershaw County vs. South Carolina Traffic Comparison

Of the four measures, average daily traffic per road differs most: Kershaw County runs 35% below the South Carolina average.

MetricKershaw CountySouth Carolina averageDifference
Traffic4,5647,040-35.2%
Truck % (Total Traffic)10.8%9.5%+13.8%
Truck % (Highway)14.7%13.7%+7.4%
Avg. Travel Time33.1 min33.3 min-0.6%

How Kershaw County compares

Kershaw County against nearby counties

Nothing in this table sets Kershaw County sharply apart from the 4 areas nearest to it, though it has the second busiest roads of the five. The same kind of road, just less of it: traffic per road matches the areas around it while the network itself is smaller.

Kershaw 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
Kershaw County4,56410.8%2,266,07133.1 min11.1%
Lee County, South Carolina2,22215.5%1,076,63635.6 min7.4%
Richland County, South Carolina9,6868.4%10,314,23032.7 min20.6%
Lancaster County, South Carolina4,3566.7%1,879,32734.2 min10.9%
Fairfield County, South Carolina2,22716.4%1,599,90035.0 min6.6%
South Carolina average7,0409.5%N/A33.3 min18.2%

Kershaw County ranked within South Carolina

On all 7 measures below, Kershaw County lands in the middle of the South Carolina field rather than at either end.

Kershaw 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.
MeasureKershaw CountySouth Carolina rank
Traffic volume (AADT)4,564#19 of 46
Highway vehicle-miles per day1,228,958#22 of 43
Truck share on highways14.7%#20 of 43
Highway trucks per day1,401#22 of 43
Average travel time33.1 min#32 of 46
Average driver income$70,446#16 of 46
Average driver age47.3 yrs#28 of 46

Busiest roads in Kershaw County, South Carolina

Traffic concentrates on a few corridors: the three busiest roads average 29,814 vehicles a day, against 4,564 on the average road in Kershaw County.

I 20 leads with 39,641 vehicles a day, 6,456 of them trucks (16.3%). It tops the truck ranking too, with the most trucks.

I 20 carries longer journeys than most roads here, with a median trip of 50.1 minutes against 33.1 county-wide.

Few trucks use DeKalb Street: 5.0% of its traffic, under half the county's 10.8%.

Trucks make up 16.3% of traffic on I 20, against 10.8% across all roads in the county.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 20Motorway · 39,641vehicles6,456trucks · 16.3%
Road class
Motorway
Congestion ratio
35.2%
Median trip time
50.1 min
Drivers’ median age
45.0 yrs
Drivers’ average income
$71,637

Travel on I 20's busiest stretch runs 35% over free-flow time, against 11% across the county, so expect slower peak hours.

2DeKalb StreetPrimary road · 33,776vehicles1,679trucks · 5.0%
Road class
Primary road
Median trip time
33.3 min
Drivers’ median age
47.4 yrs
Drivers’ average income
$68,229

At 7.4 times the county average, DeKalb Street draws drivers from neighborhoods averaging $68,229 in household income.

3Main StreetPrimary road · 16,024vehicles910trucks · 5.7%
Road class
Primary road
Congestion ratio
33.4%
Median trip time
32.8 min
Drivers’ median age
47.3 yrs
Drivers’ average income
$74,926

Main Street is one of the more congested roads here: trips take 33% longer than at free-flow speed, against 11% county-wide.

4Springdale DriveTrunk road · 12,866vehicles882trucks · 6.9%
Road class
Trunk road
Congestion ratio
15.0%
Median trip time
32.8 min
Drivers’ median age
49.0 yrs
Drivers’ average income
$70,110

Springdale Drive carries 2.8 times the county average at its busiest, 882 of them trucks (6.9%, below the county-wide 10.8%).

5Two Notch RoadPrimary road · 12,719vehicles575trucks · 4.5%
Road class
Primary road
Congestion ratio
30.0%
Median trip time
31.1 min
Drivers’ median age
46.8 yrs
Drivers’ average income
$80,646

Two Notch Road carries 2.8 times the county average on its busiest stretch, where the median trip lasts 31.1 minutes.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 20Motorway · #1 by traffic39,641vehicles6,456trucks · 16.3%
2DeKalb StreetPrimary road · #2 by traffic33,776vehicles1,679trucks · 5.0%
3Sumter HighwayTrunk road · 10,366vehicles1,054trucks · 10.2%
Road class
Trunk road
Congestion ratio
18.7%
Median trip time
37.3 min
Drivers’ median age
47.5 yrs
Drivers’ average income
$68,736

At 2.3 times the county average, Sumter Highway draws drivers from neighborhoods averaging $68,736 in household income.

4Main StreetPrimary road · #3 by traffic16,024vehicles910trucks · 5.7%
5Springdale DriveTrunk road · #4 by traffic12,866vehicles882trucks · 6.9%
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

KershawDepartment 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 Kershaw County

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

Need segment-level traffic data?

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