This page delivers traffic analytics for Sangamon County, Illinois. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for Sangamon County, Illinois among 723 road miles divided in 11,626 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 328 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.
7,359
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
10.7%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
31.2 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.
15.8%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
48.9 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$87,899
Our data indicates an estimated average traffic volume of 7,359 vehicles per day in Sangamon County, Illinois that results in 4,957,443 vehicle-miles traveled per day (≈1.8 billion per year). The traffic stream is comprised of an average of 1 truck for every 9 vehicles. Typical time spent behind the wheel per trip is 31.2 minutes, which already accounts for delays at signals, intersections, and congestion.
Analytical insight
When compared to the Illinois state averages: Sangamon sees 13% lower average daily traffic volume than the state average (7,359 vehicles per day against 8,480), suggesting less demand on each road - a critical factor for logistics and site planning. In total volume terms, its road network carries 4,957,443 vehicle-miles traveled per day (≈1.8 billion per year), about 2.1% of Illinois's statewide total. Journey times run 9% lower than the state level, at 31.2 minutes on average. At 23% lower than the state level, the 15.8% congestion ratio signals smoother traffic flow - crucial for traffic control improvement and logistics planning. 94% of counties in Illinois see less traffic than Sangamon's 7,359 vehicles per day. 11% of counties in Illinois have a shorter average travel time than Sangamon's 31.2 minutes.
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.
12,781
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
15.7%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
33.7 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.
24.5%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
49.2 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$89,807
A significant volume of traffic in Sangamon County, Illinois utilizes the highway network. The average highway carries 12,781 vehicles per day, 87% more than the average non-highway road in the same area, which carries 6,832 vehicles per day. That average covers 227 highway road miles divided in 1,030 segments (average segment length 1,165 ft), together carrying 2,718,350 vehicle-miles traveled per day (≈992 million per year). 93% of counties in Illinois move less traffic on their highways. Trucks constitute 15.7% of highway traffic.
Analytical insight
Highway truck concentration here runs 9% lower than the state average, at 15.7% - positioning Sangamon as a primarily local traffic hub. For logistics operators, this validates the importance of local access. 32% of counties in Illinois see a lower highway truck share than Sangamon's 15.7%. Sangamon's highway truck count is higher than 44% of counties in Illinois, at roughly 2,012 trucks per day.
Non-highway traffic
Traffic
Traffic
The average number of vehicles that travel each day over any road in the road network.
6,832
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
4.6%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
31.0 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.
15.0%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
48.8 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$86,617
The non-highway road network in Sangamon County, Illinois supports a substantial volume of traffic. The average non-highway road carries 6,832 vehicles per day, 47% less than the average highway in the same area, which carries 12,781 vehicles per day. That average covers 496 non-highway road miles divided in 10,596 segments (average segment length 247 ft), together carrying 2,239,093 vehicle-miles traveled per day (≈817 million per year). Trucks constitute 4.6% of non-highway traffic.
Analytical insight
Compared to highways, non-highway routes see 71% fewer trucks by share. Non-highway congestion (15.0%) runs 27% lower than the state average, pointing to smoother local traffic flow. Overall, average travel time here is longer than 11% of counties in Illinois. Trip origins here have higher average income than 85% of counties in Illinois. Sangamon's median driver age is higher than 41% of counties in Illinois.
Time-of-Day & Seasonal Patterns
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–9:00 AM and PM peak 3:00 PM–7:00 PM, with volumes reaching approximately 75% higher than the daily average.
Weekend traffic:
Weekend volumes run about 17% below weekday levels.
Seasonal Fluctuation
Busy season:
August–October is the high season, with volumes +3% versus the annual average.
Lowest month:
January is the quietest month, with volumes -12% versus the annual average.
Analytical insight
In Sangamon County, Illinois, the peak hour concentrates about 7% of the day's traffic, and seasonal swing is mild at +3% in high season.
Traffic Flow Profile Comparison
Metric
Sangamon
Illinois
Average
Difference
Traffic
7,359
8,480
-13.2%
Truck % (Total Traffic)
10.7%
10.2%
+5.0%
Truck % (Highway)
15.7%
17.3%
-9.2%
Avg. Travel Time
31.2 min
34.1 min
-8.5%
Frequently Asked Questions
The average daily traffic volume is calculated at 7,359 vehicles per day, providing a baseline for daily operations and site assessment.
Sangamon's highway truck share of 15.7% is higher than 32% of counties in Illinois.
Weekday peaks occur between 7:00 AM and 9:00 AM in the morning and between 3:00 PM and 7:00 PM in the evening - about 75% above the daily average.
Traffic volumes are typically 3% higher during August–October. Volumes drop to their lowest levels in January, averaging 6,470 vehicles per day - a 12% decrease from the annual average.
The average travel time for drivers is 31.2 minutes, offering a standard metric for commute and delivery route planning.
Drivers on Sangamon roads have a median age of 49 years, and the median household income of the neighborhoods trips originate from averages $87,899 - useful context for retail siting and customer profiling.
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)
