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Traffic heat map of Spartanburg County, South Carolina: 1,159 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 85 and SC 14

Spartanburg County, South Carolina Traffic Counts

Traffic analytics for Spartanburg County, South Carolina, calculated from real-world mobile and sensor networks on 31,372 road segments (1,159 road miles, about 195 ft each). It is one of the top 5 counties in South Carolina for highway travel volume. Use the figures below to move from assumptions to certainty on retail locations, logistics and road planning.
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 Spartanburg County, South Carolina

Traffic

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

vehicles per day7,923
Trucks

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

10.2%
Average travel time

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

32.7 min
Congestion ratio

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

17.2%
Drivers’ average age

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

45.8 yrs
Drivers’ average income

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

$72,399

The average monitored road in Spartanburg County, South Carolina carries 7,923 vehicles per day. Across its 1,159 miles of monitored roads, that adds up to 10,246,316 vehicle-miles traveled per day (≈3.7 billion per year). About 1 in 10 vehicles is a truck, in line with South Carolina (9.5%).

Busier roads than 78% of counties in South Carolina

At 7,923 vehicles per day, the average road in Spartanburg carries somewhat more traffic than the state average of 7,040 (13% more) - a factor worth weighing in site selection and logistics planning. In total volume terms, its road network carries about 7.0% of South Carolina's statewide total of vehicle-miles. By volume, Spartanburg's 7,923 vehicles per day outpaces 78% of counties in South Carolina.

Journey times here (32.7 minutes on average) closely track the state level. 76% of counties in South Carolina have a longer average travel time than Spartanburg's 32.7 minutes.

The congestion ratio of 17.2% runs slightly lower than the state level (5% lower).

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Spartanburg County, South Carolina

Trafficvehicles per day18,319
Trucks16.4%
Average travel time41.6 min
Congestion ratio28.3%
Drivers’ average age45.8 yrs
Drivers’ average income$71,075

A significant share of driving in Spartanburg County, South Carolina, 45% of vehicle-miles, happens on highways. The average highway carries 18,319 vehicles per day, 145% more than the average non-highway road in the same area, which carries 7,474 vehicles per day.

Highways make up 18% of the monitored road miles (210 miles, 1,300 segments), so they carry more than their share: 4,565,963 vehicle-miles traveled per day (≈1.7 billion per year).

No more than 4 other counties in South Carolina move more traffic on their highways.

More highway trucks than 86% of counties in South Carolina

The concentration of trucks on highways (16.4%) is 20% higher than the state average for similar road classifications. Highways here lean toward freight, so highway access is a real asset for logistics operators.

By truck concentration, highways here outrank 60% of counties in South Carolina. Spartanburg's highway truck count is higher than 86% of counties in South Carolina, at roughly 2,997 trucks per day.

non-highway traffic icon

Non-highway Traffic in Spartanburg County, South Carolina

Trafficvehicles per day7,474
Trucks5.3%
Average travel time32.3 min
Congestion ratio16.7%
Drivers’ average age45.8 yrs
Drivers’ average income$73,056

A little more than half of the driving in Spartanburg County, South Carolina happens on local roads: 55% of all vehicle-miles. On the average non-highway road, that comes to 7,474 vehicles per day.

Spread over 949 miles and 30,072 segments, 82% of the road network, local roads carry a lighter load per mile: 5,680,353 vehicle-miles traveled per day (≈2.1 billion per year). The truck share on non-highway roads is 5.3%.

Younger drivers than 78% of counties in South Carolina

The concentration of trucks on non-highway roads is 68% lower than on highways.

At 16.7%, the non-highway congestion ratio matches the state level closely.

Trip origins here have higher average income than 71% of counties in South Carolina. Spartanburg's median driver age is lower than 78% 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 5:00 PM–6:00 PM, with volumes reaching approximately 78% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 9% below weekday levels, the usual weekend dip.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
Traffic is nearly flat through the year: even May–July, the busiest stretch, runs only +4% versus the annual average.
Lowest month:
January is the quietest month, with volumes -11% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Spartanburg County, South Carolina, the peak hour concentrates about 7% of the day's traffic, and traffic stays steady through the year (+4% in high season).

Spartanburg County vs. South Carolina Traffic Comparison

Spartanburg County's biggest difference from the South Carolina average is its highway truck share, 20% above it.

MetricSpartanburg CountySouth Carolina averageDifference
Traffic7,9237,040+12.5%
Truck % (Total Traffic)10.2%9.5%+7.6%
Truck % (Highway)16.4%13.7%+19.5%
Avg. Travel Time32.7 min33.3 min-1.8%

How Spartanburg County compares

Spartanburg County against nearby counties

Set against the average of the 4 areas nearest to it, Spartanburg County is 47.5% more congested and carries 61.8% more traffic on a typical road; 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.

Spartanburg 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
Spartanburg County7,92310.2%10,246,31632.7 min17.2%
Greenville County, South Carolina10,9096.4%11,852,07834.2 min21.7%
Cherokee County, South Carolina2,94518.2%2,021,73733.3 min9.2%
Union County, South Carolina2,2359.6%558,71932.3 min6.9%
Laurens County, South Carolina3,49512.3%2,644,96236.8 min8.9%
South Carolina average7,0409.5%N/A33.3 min18.2%

Spartanburg County ranked within South Carolina

Highway travel volume places Spartanburg County #5 of 43 in South Carolina - the top quarter of the state.

Spartanburg 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.
MeasureSpartanburg CountySouth Carolina rank
Traffic volume (AADT)7,923#11 of 46
Highway vehicle-miles per day4,565,963#5 of 43
Truck share on highways16.4%#18 of 43
Highway trucks per day2,997#7 of 43
Average travel time32.7 min#35 of 46
Average driver income$72,399#14 of 46
Average driver age45.8 yrs#36 of 46

Spartanburg County ranks #5 of 43 on highway travel volume but #36 of 46 on average driver age - the two describe the same roads and are worth reading together rather than either on its own.

Busiest roads in Spartanburg County, South Carolina

On their busiest stretches, the three busiest roads in Spartanburg County carry 54,342 vehicles a day on average, 6.9 times the typical road in the county (7,923).

I 85 leads with 78,155 vehicles a day, 14,970 of them trucks (19.1%). That is 80% more than the next road, SC 14 (43,329). It also carries the most trucks.

Freight stands out on I 85 and I 26: trucks are 19.1% and 15.3% of the traffic there, against 10.2% county-wide.

I 85 carries longer journeys than most roads here, with a median trip of 47.2 minutes against 32.7 county-wide.

SC 14 draws drivers from wealthier areas: their neighborhoods average $95,800 in household income, 32% above the county's $72,399.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 85Motorway · 78,155vehicles14,970trucks · 19.1%
Road class
Motorway
Congestion ratio
63.7%
Median trip time
47.2 min
Drivers’ median age
45.6 yrs
Drivers’ average income
$74,178

Delays build on I 85: its congestion ratio of 64% over free-flow time is well above the county's 17%.

2SC 14Primary road · 43,329vehicles2,244trucks · 5.2%
Road class
Primary road
Congestion ratio
40.0%
Median trip time
34.2 min
Drivers’ median age
45.8 yrs
Drivers’ average income
$95,800

SC 14 carries 5.5 times the county average on its busiest stretch, where the median trip lasts 34.2 minutes.

3Main StreetPrimary road · 41,544vehicles2,161trucks · 5.2%
Road class
Primary road
Congestion ratio
57.8%
Median trip time
40.5 min
Drivers’ median age
45.7 yrs
Drivers’ average income
$72,916

Travel on Main Street's busiest stretch runs 58% over free-flow time, against 17% across the county, so expect slower peak hours.

4Pine StreetTrunk road · 40,751vehicles2,342trucks · 5.8%
Road class
Trunk road
Congestion ratio
33.7%
Median trip time
33.4 min
Drivers’ median age
45.8 yrs
Drivers’ average income
$65,922

At 5.1 times the county average, Pine Street draws drivers from neighborhoods averaging $65,922 in household income.

5W O Ezell BoulevardPrimary road · 37,115vehicles1,423trucks · 3.8%
Road class
Primary road
Congestion ratio
49.4%
Median trip time
33.2 min
Drivers’ median age
45.7 yrs
Drivers’ average income
$69,166

W O Ezell Boulevard peaks at 37,115 vehicles a day, 4.7 times the county average; trucks are 3.8% of it, below the county-wide 10.2%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 85Motorway · #1 by traffic78,155vehicles14,970trucks · 19.1%
2I 26Motorway · 29,675vehicles4,555trucks · 15.3%
Road class
Motorway
Congestion ratio
38.7%
Median trip time
40.7 min
Drivers’ median age
46.6 yrs
Drivers’ average income
$72,324

I 26 carries 3.7 times the county average at its busiest, 4,555 of them trucks (15.3%, above the county-wide 10.2%).

3I 85 BusMotorway · 28,114vehicles3,374trucks · 12.0%
Road class
Motorway
Congestion ratio
34.3%
Median trip time
34.9 min
Drivers’ median age
45.2 yrs
Drivers’ average income
$66,399

I 85 Bus carries 3.5 times the county average on its busiest stretch, where the median trip lasts 34.9 minutes.

4SC 101Primary road · 27,511vehicles2,510trucks · 9.1%
Road class
Primary road
Congestion ratio
35.1%
Median trip time
36.1 min
Drivers’ median age
45.7 yrs
Drivers’ average income
$86,954

At 3.5 times the county average, SC 101 draws drivers from neighborhoods averaging $86,954 in household income.

5Pine StreetTrunk road · #4 by traffic40,751vehicles2,342trucks · 5.8%
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

SpartanburgDepartment 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 Spartanburg County

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

Need segment-level traffic data?

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