This page delivers traffic analytics for Sumter County, South Carolina. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for Sumter County, South Carolina among 587 road miles divided in 7,680 segments. Our metrics go beyond simple volume counts to provide actionable insights on traffic intensity, congestion, commercial vehicle flow, and network performance with highest possible granularity (average segment length is 403 ft). Whether you are evaluating a new retail location, planning logistics routes, or assessing infrastructure needs, this data helps you move from assumptions to certainty.
Data sourced from TrafficZoom's proprietary analytics platform.
The average number of vehicles that travel each day over any road in the road network.
5,432
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
10.0%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
33.8 min
Congestion ratio
Congestion ratio
The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network.
15.6%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
46.7 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$60,405
Our data indicates an estimated average traffic volume of 5,432 vehicles per day in Sumter County, South Carolina that results in 2,622,822 vehicle-miles traveled per day (≈957 million per year). The traffic stream is comprised of an average of 1 truck for every 10 vehicles. Typical time spent behind the wheel per trip is 33.8 minutes, which already accounts for delays at signals, intersections, and congestion.
Analytical insight
When compared to the South Carolina state averages: Sumter's average daily traffic volume is 23% lower than the state average - 5,432 vehicles per day against 7,040 - suggesting less traffic load per road, a critical factor for logistics and site planning. Network-wide, Sumter accounts for about 1.8% of South Carolina's statewide total, at 2,622,822 vehicle-miles traveled per day (≈957 million per year). The average trip takes 33.8 minutes, 2% higher than the state level. Congestion runs 14% lower than the state level, at a ratio of 15.6% - smoother traffic flow - crucial for traffic control improvement and logistics planning. Sumter carries more traffic than 64% of counties in South Carolina. Its average travel time of 33.8 minutes is longer than 51% of counties in South Carolina.
Highway vs. Non-Highway Traffic Analysis
Highway Traffic
Traffic
Traffic
The average number of vehicles that travel each day over any road in the road network.
11,946
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
14.3%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
36.1 min
Congestion ratio
Congestion ratio
The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network.
23.9%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
46.8 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$61,750
A significant volume of traffic in Sumter County, South Carolina utilizes the highway network. The average highway carries 11,946 vehicles per day, 178% more than the average non-highway road in the same area, which carries 4,304 vehicles per day. That average covers 136 highway road miles divided in 1,133 segments (average segment length 635 ft), together carrying 1,315,229 vehicle-miles traveled per day (≈480 million per year). That is more highway travel volume than 55% of counties in South Carolina. Trucks constitute 14.3% of highway traffic.
Analytical insight
At 14.3%, highway truck share is 5% higher than the state average, marking Sumter as a significant freight corridor - underscoring the importance of highway access for logistics operators. By truck concentration, highways here outrank 50% of counties in South Carolina. By raw truck volume, Sumter carries more highway trucks than 38% of counties in South Carolina.
Non-highway traffic
Traffic
Traffic
The average number of vehicles that travel each day over any road in the road network.
4,304
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
5.6%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
33.4 min
Congestion ratio
Congestion ratio
The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network.
14.2%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
46.5 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$59,632
The non-highway road network in Sumter County, South Carolina supports a substantial volume of traffic. The average non-highway road carries 4,304 vehicles per day, 64% less than the average highway in the same area, which carries 11,946 vehicles per day. That average covers 451 non-highway road miles divided in 6,547 segments (average segment length 363 ft), together carrying 1,307,594 vehicle-miles traveled per day (≈477 million per year). Trucks constitute 5.6% of non-highway traffic.
Analytical insight
Compared to highways, non-highway routes see 61% fewer trucks by share. Non-highway congestion (14.2%) runs 16% lower than the state average, pointing to smoother local traffic flow. Sumter's overall average travel time exceeds 51% of counties in South Carolina. 36% of counties in South Carolina see lower average driver income among trip origins than Sumter. The driver population here skews older than 28% of counties in South Carolina.
Time-of-Day & Seasonal Patterns
Analytical insight
In Sumter County, South Carolina, the peak hour concentrates about 7% of the day's traffic.
Traffic Flow Profile Comparison
Metric
Sumter
South Carolina
Average
Difference
Traffic
5,432
7,040
-22.9%
Truck % (Total Traffic)
10.0%
9.5%
+4.9%
Truck % (Highway)
14.3%
13.7%
+4.7%
Avg. Travel Time
33.8 min
33.3 min
+1.6%
Frequently Asked Questions
The average daily traffic volume is calculated at 5,432 vehicles per day, providing a baseline for daily operations and site assessment.
The driver population in Sumter skews older than 28% of counties in South Carolina.
Approximately 10% of highway traffic and 4% of non-highway traffic consists of vehicles whose trip originates outside Sumter County, South Carolina. This indicates that a portion of highway traffic is regional pass-through, while local roads are more representative of resident and commuter activity.
Weekday peaks occur between 7:00 AM and 9:00 AM in the morning and between 4:00 PM and 6:00 PM in the evening - about 77% above the daily average.
Drivers on Sumter roads have a median age of 47 years, and the median household income of the neighborhoods trips originate from averages $60,405 - useful context for retail siting and customer profiling.
The average travel time for drivers is 33.8 minutes, offering a standard metric for commute and delivery route planning.
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)
