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Traffic heat map of Florence County, South Carolina: 708 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 95 and I 20

Florence County, South Carolina Traffic Counts

How busy are the roads of Florence County, South Carolina? We measure 708 road miles, divided into 8,677 segments, with multi-sourced, cross-verified mobile and sensor data. Its busiest road, I 95, carries 37,740 vehicles a day, 4.5 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 Florence County, South Carolina

Traffic

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

vehicles per day8,427
Trucks

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

11.3%
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.

18.7%
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.

$64,397

Our data shows 8,427 vehicles per day on the average road in Florence County, South Carolina, and 4,376,068 vehicle-miles traveled per day (≈1.6 billion per year) across its 708 miles of monitored roads. Trucks are 11.3% of traffic, more than the 9.5% across South Carolina.

Busier roads than 80% of counties in South Carolina

Florence's average daily traffic volume is 20% higher than the state average - 8,427 vehicles per day against 7,040 - suggesting more traffic load per road - a critical factor for logistics and site planning. Network-wide, Florence accounts for about 3.0% of South Carolina's statewide total of vehicle-miles. 80% of counties in South Carolina see less traffic than Florence's 8,427 vehicles per day.

At 32.7 minutes, the average travel time matches the state level closely. 73% of counties in South Carolina have a longer average travel time than Florence's 32.7 minutes.

At 18.7%, the congestion ratio matches the state level closely.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Florence County, South Carolina

Trafficvehicles per day14,782
Trucks16.4%
Average travel time38.0 min
Congestion ratio25.3%
Drivers’ average age47.5 yrs
Drivers’ average income$62,197

Highways carry about half of all travel in Florence County, South Carolina, 53% of vehicle-miles. The average highway carries 14,782 vehicles per day, 107% more than the average non-highway road in the same area, which carries 7,130 vehicles per day.

With 26% of the road miles (182 miles in 1,470 segments), highways punch above their length, carrying 2,328,159 vehicle-miles traveled per day (≈850 million per year).

That is more highway travel volume than 81% of counties in South Carolina.

Freight-heavy highways

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.

64% of counties in South Carolina see a lower highway truck share than Florence's 16.4%. Florence's highway truck count is lower than 52% of counties in South Carolina, at roughly 2,430 trucks per day.

non-highway traffic icon

Non-highway Traffic in Florence County, South Carolina

Trafficvehicles per day7,130
Trucks5.5%
Average travel time31.6 min
Congestion ratio17.3%
Drivers’ average age47.2 yrs
Drivers’ average income$65,815

Local roads carry about half of all travel in Florence County, South Carolina, 47% of vehicle-miles. A typical local road sees 7,130 vehicles per day.

Local roads make up 74% of the monitored road miles (526 miles in 7,207 segments) but carry less than their share of travel: 2,047,908 vehicle-miles traveled per day (≈747 million per year). About 1 in 18 vehicles on non-highway roads is a truck (5.5%).

Local roads carry 66% fewer trucks by share than highways

Non-highway roads carry a truck concentration that's 66% lower than the highway network.

The non-highway congestion ratio of 17.3% is in line with the state level.

Trip origins here have lower average income than 51% of counties in South Carolina. The driver population here skews younger than 58% of counties in South Carolina.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

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

Florence County vs. South Carolina Traffic Comparison

Florence County's biggest difference from the South Carolina average is its highway truck share, 20% above it. Its average daily traffic per road is also 20% above.

MetricFlorence CountySouth Carolina averageDifference
Traffic8,4277,040+19.7%
Truck % (Total Traffic)11.3%9.5%+19.4%
Truck % (Highway)16.4%13.7%+20.1%
Avg. Travel Time32.7 min33.3 min-1.8%

How Florence County compares

Florence County has the busiest roads among its nearby counties

Against the 4 nearest areas, Florence County carries 178.1% more traffic on a typical road and is 104.5% more congested; it has the 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.

Florence 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
Florence County8,42711.3%4,376,06832.7 min18.7%
Marion County, South Carolina3,62410.3%1,295,59640.7 min9.9%
Darlington County, South Carolina3,8199.9%1,999,70132.6 min11.5%
Williamsburg County, South Carolina2,4579.3%848,51336.0 min7.7%
Lee County, South Carolina2,22215.5%1,076,63635.6 min7.4%
South Carolina average7,0409.5%N/A33.3 min18.2%

Florence County ranked within South Carolina

Florence County sits in the top quarter of the South Carolina field on highway travel volume, at #9 of 43.

Florence 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.
MeasureFlorence CountySouth Carolina rank
Traffic volume (AADT)8,427#10 of 46
Highway vehicle-miles per day2,328,159#9 of 43
Truck share on highways16.4%#16 of 43
Highway trucks per day2,430#23 of 43
Average travel time32.7 min#34 of 46
Average driver income$64,397#24 of 46
Average driver age47.3 yrs#27 of 46

Busiest roads in Florence County, South Carolina

Traffic concentrates on a few corridors: the three busiest roads average 30,703 vehicles a day, against 8,427 on the average road in Florence County.

I 95 is the busiest road, at 37,740 vehicles a day, 9,022 of them trucks (23.9%). It also carries the most trucks.

US 76 carries longer journeys than most roads here, with a median trip of 60.8 minutes against 32.7 county-wide.

Trucks make up 23.9% of traffic on I 95, against 11.3% across all roads in the county.

2nd Loop Road is busy with cars rather than freight: only 3.3% of its traffic is trucks, against 11.3% county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 95Motorway · 37,740vehicles9,022trucks · 23.9%
Road class
Motorway
Congestion ratio
37.0%
Median trip time
52.8 min
Drivers’ median age
47.7 yrs
Drivers’ average income
$67,481

I 95 carries through traffic: the median trip using it lasts 52.8 minutes, against 32.7 for the county.

2I 20Motorway · 27,232vehicles4,399trucks · 16.1%
Road class
Motorway
Congestion ratio
24.0%
Median trip time
47.1 min
Drivers’ median age
47.3 yrs
Drivers’ average income
$68,560

I 20 peaks at 27,232 vehicles a day, 3.2 times the county average; trucks are 16.1% of it, above the county-wide 11.3%.

32nd Loop RoadSecondary road · 27,136vehicles885trucks · 3.3%
Road class
Secondary road
Congestion ratio
65.4%
Median trip time
30.4 min
Drivers’ median age
47.4 yrs
Drivers’ average income
$69,791

Delays build on 2nd Loop Road: its congestion ratio of 65% over free-flow time is well above the county's 19%.

4US 76Trunk road · 26,939vehicles2,983trucks · 11.1%
Road class
Trunk road
Median trip time
60.8 min
Drivers’ median age
49.5 yrs
Drivers’ average income
$55,538

US 76 carries 3.2 times the county average at its busiest, 2,983 of them trucks (11.1%, in line with the county-wide 11.3%).

5Lucas StreetTrunk road · 24,909vehicles2,566trucks · 10.3%
Road class
Trunk road
Congestion ratio
33.5%
Median trip time
37.2 min
Drivers’ median age
47.1 yrs
Drivers’ average income
$64,645

Lucas Street carries 3.0 times the county average on its busiest stretch, where the median trip lasts 37.2 minutes.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 95Motorway · #1 by traffic37,740vehicles9,022trucks · 23.9%
2I 20Motorway · #2 by traffic27,232vehicles4,399trucks · 16.1%
3US 76Trunk road · #4 by traffic26,939vehicles2,983trucks · 11.1%
4Lucas StreetTrunk road · #5 by traffic24,909vehicles2,566trucks · 10.3%
5Williston RoadTrunk road · 15,586vehicles2,558trucks · 16.4%
Road class
Trunk road
Congestion ratio
19.8%
Median trip time
54.3 min
Drivers’ median age
48.8 yrs
Drivers’ average income
$64,755

Drivers on Williston Road are on long journeys, a median 54.3 minutes against 32.7 county-wide: a through route more than a local street.

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

FlorenceDepartment 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 Florence County

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

Need segment-level traffic data?

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