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TrafficThe average number of vehicles that travel each day over any road in the road network. | vehicles per day3,155 |
|---|---|
TrucksThe percentage of the total traffic volume composed of heavy vehicles. | 18.3% |
Average travel timeThe average time of travel averaged among all vehicles traveling on the road network. | 32.5 min |
Congestion ratioThe rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network. | 9.2% |
Drivers’ average ageAverage age of residents in the geographic areas where the vehicle trips originated. | 51.9 yrs |
Drivers’ average incomeAverage income of residents in the geographic areas where the vehicle trips originated. | $54,229 |
A typical monitored road in Clarendon County, South Carolina sees 3,155 vehicles per day, while its 444 miles of monitored roads together handle 1,778,904 vehicle-miles traveled per day (≈649 million per year). Freight weighs heavily here: trucks are 18.3% of traffic, against 9.5% across South Carolina.
At 3,155 vehicles per day, the average monitored road in Clarendon carries 55% less traffic than the state average of 7,040, suggesting less demand on each road - quiet roads that suit freight movement more than drive-by retail. In total volume terms, its road network carries about 1.2% of South Carolina's statewide total of vehicle-miles. By volume, Clarendon's 3,155 vehicles per day trails 58% of counties in South Carolina.
At 32.5 minutes, the average travel time matches the state level closely. 82% of counties in South Carolina have a longer average travel time than Clarendon's 32.5 minutes.
Congestion runs 49% lower than the state level, at a ratio of 9.2%, which means smoother traffic flow - fewer delays make delivery windows more reliable.
| Traffic | vehicles per day8,045 |
|---|---|
| Trucks | 23.4% |
| Average travel time | 46.5 min |
| Congestion ratio | 13.8% |
| Drivers’ average age | 51.2 yrs |
| Drivers’ average income | $56,066 |
Highways carry more than half of all travel in Clarendon County, South Carolina (69% of vehicle-miles). The average highway carries 8,045 vehicles per day, 230% more than the average non-highway road in the same area, which carries 2,438 vehicles per day.
Highways make up 24% of the monitored road miles (104 miles, 499 segments), so they carry more than their share: 1,235,498 vehicle-miles traveled per day (≈451 million per year).
52% of counties in South Carolina move less traffic on their highways.
Highway truck concentration here runs 71% higher than the state average, at 23.4%. That marks Clarendon as a major freight corridor, where highway access is what logistics operators compete on.
By truck concentration, highways here outrank 95% of counties in South Carolina. Clarendon's highway truck count is higher than 67% of counties in South Carolina, at roughly 1,881 trucks per day.
| Traffic | vehicles per day2,438 |
|---|---|
| Trucks | 6.6% |
| Average travel time | 30.4 min |
| Congestion ratio | 8.5% |
| Drivers’ average age | 52.6 yrs |
| Drivers’ average income | $52,994 |
Local roads carry a significant share of travel in Clarendon County, South Carolina: 31% of all vehicle-miles. A typical local road sees 2,438 vehicles per day.
Spread over 339 miles and 3,403 segments, 76% of the road network, local roads carry a lighter load per mile: 543,406 vehicle-miles traveled per day (≈198 million per year). About 1 in 15 vehicles on non-highway roads is a truck (6.6%).
Compared to highways, non-highway routes see 72% fewer trucks by share.
The non-highway congestion ratio of 8.5% is 50% lower than the state level, suggesting more efficient local mobility than the state average.
Trip origins here have lower average income than 78% of counties in South Carolina. 91% of counties in South Carolina have a younger driver population than Clarendon.
The truck share sets Clarendon County apart: 92% above the South Carolina average. Its highway truck share is also 71% above.
| Metric | Clarendon County | South Carolina average | Difference |
|---|---|---|---|
| Traffic | 3,155 | 7,040 | -55.2% |
| Truck % (Total Traffic) | 18.3% | 9.5% | +92.2% |
| Truck % (Highway) | 23.4% | 13.7% | +70.8% |
| Avg. Travel Time | 32.5 min | 33.3 min | -2.4% |
Against the 4 nearest areas, Clarendon County runs 5.5 percentage points more truck traffic; it has the second busiest roads of the five. Traffic volume here matches the areas around it, but more of that traffic is trucks - a difference in what routes through, not in how much.
| Area | Average daily traffic | Truck share | Daily vehicle-miles | Average travel time | Congestion ratio |
|---|---|---|---|---|---|
| Clarendon County | 3,155 | 18.3% | 1,778,904 | 32.5 min | 9.2% |
| Sumter County, South Carolina | 5,432 | 10.0% | 2,622,822 | 33.8 min | 15.6% |
| Williamsburg County, South Carolina | 2,457 | 9.3% | 848,513 | 36.0 min | 7.7% |
| Calhoun County, South Carolina | 1,887 | 16.4% | 1,706,516 | 33.1 min | 7.1% |
| Lee County, South Carolina | 2,222 | 15.5% | 1,076,636 | 35.6 min | 7.4% |
| South Carolina average | 7,040 | 9.5% | N/A | 33.3 min | 18.2% |
On truck share on highways, Clarendon County is among the three highest county-level areas in South Carolina.
| Measure | Clarendon County | South Carolina rank |
|---|---|---|
| Traffic volume (AADT) | 3,155 | #27 of 46 |
| Highway vehicle-miles per day | 1,235,498 | #21 of 43 |
| Truck share on highways | 23.4% | #3 of 43 |
| Highway trucks per day | 1,881 | #15 of 43 |
| Average travel time | 32.5 min | #38 of 46 |
| Average driver income | $54,229 | #36 of 46 |
| Average driver age | 51.9 yrs | #5 of 46 |
The two ends of this table sit far apart: #3 of 43 on truck share on highways, against #38 of 46 on average travel time.
Traffic concentrates on a few corridors: the three busiest roads average 22,359 vehicles a day, against 3,155 on the average road in Clarendon County.
I 95 leads with 40,014 vehicles a day, 8,726 of them trucks (21.8%). That is 2.9 times the next road, Paxville Highway (13,794). It also carries the most trucks.
Trips using I 95 are long: a median of 53.6 minutes against 32.5 county-wide, the mark of a through route.
Boyce Street is busy with cars rather than freight: only 4.1% of its traffic is trucks, against 18.3% county-wide.
The truck ranking looks different from the traffic one, sharing just 2 of its 5 roads.
Travel on I 95's busiest stretch runs 42% over free-flow time, against 9% across the county, so expect slower peak hours.
On its busiest stretch, Paxville Highway carries 4.4 times the county average; trucks are 4.6% of it, below the county-wide 18.3%.
Boyce Street is one of the more congested roads here: trips take 27% longer than at free-flow speed, against 9% county-wide.
Main Street peaks at 11,085 vehicles a day, 3.5 times the county average; trucks are 10.5% of it, below the county-wide 18.3%.
Brooks Street carries 3.1 times the county average at its busiest, 666 of them trucks (6.7%, below the county-wide 18.3%).
Clarence Coker Highway carries 2.2 times the county average on its busiest stretch, where the median trip lasts 37.4 minutes.
Myrtle Beach Highway carries 94% more than the county average on its busiest stretch, where the median trip lasts 42.1 minutes.
At 2.5 times the county average, US 521 draws drivers from neighborhoods averaging $57,505 in household income.
The average monitored road in Clarendon carries 3,155 vehicles per day, 55% less than the South Carolina average of 7,040.
Clarendon carries more highway trucks by raw volume than 67% of counties in South Carolina, at roughly 1,881 per day.
Drivers on Clarendon roads have a median age of 52 years, older than the South Carolina average of 46, and the median household income of the neighborhoods trips originate from averages $54,229, 27% below the South Carolina average.
Trucks make up about 18.3% of all traffic in Clarendon County, South Carolina, rising to 23.4% on highways, where long-haul freight concentrates.
The average trip in Clarendon takes 32.5 minutes, about the same as the South Carolina average, delays at signals and congestion included.
Weekday traffic has two busy windows: AM peak 7:00 AM–8:00 AM and PM peak 4:00 PM–6:00 PM - about 67% above the daily average.
I 95 carries the most, 40,014 vehicles per day on its busiest stretch, followed by Paxville Highway (13,794), Boyce Street (13,269), Main Street (11,085), Brooks Street (9,908). Figures are AADT, both directions combined.
I 95, with about 8,726 trucks per day on its busiest stretch, 21.8% of its 40,014 vehicles.
About 40,014 vehicles per day in both directions on its busiest stretch, including 8,726 trucks (21.8%). Traffic is lower on its quieter stretches; TrafficZoom shows the count for every segment.

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