
Total Traffic Volume & Performance in Horry County, South Carolina
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day8,576 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 5.3% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 33.3 min |
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Congestion ratio The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network. | 23.4% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 53.4 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $66,022 |
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Our data shows 8,576 vehicles per day on the average road in Horry County, South Carolina, and 9,928,206 vehicle-miles traveled per day (≈3.6 billion per year) across its 1,246 miles of monitored roads. Traffic here is mostly passenger cars: only 5.3% trucks, against 9.5% across South Carolina.
Busier roads than 84% of counties in South Carolina
At 8,576 vehicles per day, the average monitored road in Horry carries 22% more traffic than the state average of 7,040, suggesting more demand on each road - a critical factor for logistics and site planning. Network-wide, Horry accounts for about 6.8% of South Carolina's statewide total of vehicle-miles. By volume, Horry's 8,576 vehicles per day outpaces 84% of counties in South Carolina.
The average trip takes 33.3 minutes, on par with the state level. 58% of counties in South Carolina have a longer average travel time than Horry's 33.3 minutes.
Congestion runs 29% higher than the state level, at a ratio of 23.4%, which means more pronounced congestion - a factor for delivery windows and signal timing.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Horry County, South Carolina
| Traffic | vehicles per day17,492 |
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| Trucks | 5.9% |
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| Average travel time | 35.6 min |
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| Congestion ratio | 37.7% |
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| Drivers’ average age | 53.9 yrs |
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| Drivers’ average income | $67,165 |
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Highways carry about half of all travel in Horry County, South Carolina, 51% of vehicle-miles. The average highway carries 17,492 vehicles per day, 149% more than the average non-highway road in the same area, which carries 7,024 vehicles per day.
Highways make up 28% of the monitored road miles (345 miles, 2,572 segments), so they carry more than their share: 5,095,446 vehicle-miles traveled per day (≈1.9 billion per year).
That puts Horry among the top 3 counties in South Carolina for highway travel volume.
The lowest highway truck share of any county in South Carolina
The concentration of trucks on highways (5.9%) is 57% lower than the state average for similar road classifications. Highways here carry mainly commuter and local trips, with little through freight.
Horry also posts the lowest highway truck share in South Carolina - 5.9%. Horry's highway truck count is lower than 74% of counties in South Carolina, at roughly 1,037 trucks per day.

Non-highway Traffic in Horry County, South Carolina
| Traffic | vehicles per day7,024 |
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| Trucks | 4.6% |
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| Average travel time | 32.9 min |
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| Congestion ratio | 20.9% |
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| Drivers’ average age | 52.9 yrs |
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| Drivers’ average income | $64,971 |
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Local roads carry about half of all travel in Horry County, South Carolina, 49% of vehicle-miles. On the average non-highway road, that comes to 7,024 vehicles per day.
Local roads make up 72% of the monitored road miles (901 miles in 14,768 segments) but carry less than their share of travel: 4,832,760 vehicle-miles traveled per day (≈1.8 billion per year). Trucks make up 4.6% of non-highway traffic, about 1 in 22 vehicles.
Older drivers than 96% of counties in South Carolina
Non-highway roads carry a truck concentration that's 23% lower than the highway network.
At 24% higher than the state level, the non-highway congestion ratio of 20.9% signals more friction on local roads.
Horry's average driver income is higher than 58% of counties in South Carolina. The driver population here skews older than 96% of counties in South Carolina.