This page delivers traffic analytics for Clark County, Illinois. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for Clark County, Illinois among 186 road miles divided in 1,579 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 622 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.
3,280
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
26.8%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
34.0 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.
8.9%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
49.5 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$76,042
Our data indicates an estimated average traffic volume of 3,280 vehicles per day in Clark County, Illinois that results in 966,646 vehicle-miles traveled per day (≈353 million per year). The traffic stream is comprised of an average of 1 truck for every 4 vehicles. Typical time spent behind the wheel per trip is 34.0 minutes, which already accounts for delays at signals, intersections, and congestion.
Analytical insight
When compared to the Illinois state averages: Clark's average daily traffic volume is 61% lower than the state average - 3,280 vehicles per day against 8,480 - suggesting less traffic load per road, a critical factor for logistics and site planning. Across the whole network that adds up to 966,646 vehicle-miles traveled per day (≈353 million per year), roughly 0.4% of Illinois's statewide total. Journey times here (34.0 minutes on average) closely track the state level. Congestion runs 57% lower than the state level, at a ratio of 8.9% - smoother traffic flow - crucial for traffic control improvement and logistics planning. Clark carries more traffic than 60% of counties in Illinois. 61% of counties in Illinois have a shorter average travel time than Clark's 34.0 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.
10,372
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
34.4%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
67.7 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.
24.1%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
48.5 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$76,203
A significant volume of traffic in Clark County, Illinois utilizes the highway network. The average highway carries 10,372 vehicles per day, 270% more than the average non-highway road in the same area, which carries 2,801 vehicles per day. That average covers 62 highway road miles divided in 100 segments (average segment length 3,271 ft), together carrying 687,424 vehicle-miles traveled per day (≈251 million per year). 59% of counties in Illinois move less traffic on their highways. Trucks constitute 34.4% of highway traffic.
Analytical insight
The concentration of trucks on highways (34.4%) is 98% higher than the state average for similar road classifications. This indicates Clark serves as a significant freight corridor. For logistics operators, this validates the importance of highway access. By truck concentration, highways here outrank 98% of counties in Illinois. Clark's highway truck count is higher than 88% of counties in Illinois, at roughly 3,566 trucks per day.
Non-highway traffic
Traffic
Traffic
The average number of vehicles that travel each day over any road in the road network.
2,801
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
8.1%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
31.8 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.
7.9%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
50.0 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$75,966
The non-highway road network in Clark County, Illinois supports a substantial volume of traffic. The average non-highway road carries 2,801 vehicles per day, 73% less than the average highway in the same area, which carries 10,372 vehicles per day. That average covers 124 non-highway road miles divided in 1,479 segments (average segment length 443 ft), together carrying 279,222 vehicle-miles traveled per day (≈102 million per year). Trucks constitute 8.1% of non-highway traffic.
Analytical insight
The concentration of trucks on non-highway roads is 76% lower than on highways. Non-highway congestion (7.9%) runs 62% lower than the state average, pointing to smoother local traffic flow. Overall, average travel time here is longer than 61% of counties in Illinois. Clark's average driver income exceeds 63% of counties in Illinois. The driver population here skews older than 48% of counties in Illinois.
Time-of-Day & Seasonal Patterns
Peak Traffic Windows
Weekday peaks:
AM peak 10:00 AM–12:00 PM and PM peak 3:00 PM–7:00 PM, with volumes reaching approximately 61% higher than the daily average.
Weekend traffic:
Weekend volumes run about 6% below weekday levels.
Seasonal Fluctuation
Busy season:
January–March is the high season, with volumes +7% versus the annual average.
Lowest month:
December is the quietest month, with volumes -13% versus the annual average.
Analytical insight
In Clark County, Illinois, the peak hour concentrates about 7% of the day's traffic, and seasonal swing is mild at +7% in high season.
Traffic Flow Profile Comparison
Metric
Clark
Illinois
Average
Difference
Traffic
3,280
8,480
-61.3%
Truck % (Total Traffic)
26.8%
10.2%
+163.3%
Truck % (Highway)
34.4%
17.3%
+98.4%
Avg. Travel Time
34.0 min
34.1 min
-0.3%
Frequently Asked Questions
The average daily traffic volume is calculated at 3,280 vehicles per day, providing a baseline for daily operations and site assessment.
Clark's highway truck share of 34.4% is higher than 98% of counties in Illinois.
The average travel time for drivers is 34.0 minutes, offering a standard metric for commute and delivery route planning.
Traffic volumes are typically 7% higher during January–March. Volumes drop to their lowest levels in December, averaging 2,841 vehicles per day - a 13% decrease from the annual average.
Approximately 68% of highway traffic and 13% of non-highway traffic consists of vehicles whose trip originates outside Clark County, Illinois. This indicates that a portion of highway traffic is regional pass-through, while local roads are more representative of resident and commuter activity.
Trucks account for approximately 26.8% of the total traffic mix across all road types, with a significantly higher concentration of 34.4% on highways.
Drivers on Clark roads have a median age of 49 years, and the median household income of the neighborhoods trips originate from averages $76,042 - useful context for retail siting and customer profiling.
Weekday peaks occur between 10:00 AM and 12:00 PM in the morning and between 3:00 PM and 7:00 PM in the evening - about 61% above the daily average.
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)
