This page delivers traffic analytics for Lee County, Illinois. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for Lee County, Illinois among 412 road miles divided in 2,437 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 892 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.
3,018
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
17.2%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
32.4 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.
8.8%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
50.1 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$75,932
Our data indicates an estimated average traffic volume of 3,018 vehicles per day in Lee County, Illinois that results in 1,487,962 vehicle-miles traveled per day (≈543 million per year). The traffic stream is comprised of an average of 1 truck for every 6 vehicles. Typical time spent behind the wheel per trip is 32.4 minutes, which already accounts for delays at signals, intersections, and congestion.
Analytical insight
When compared to the Illinois state averages: At 3,018 vehicles per day, the average monitored road in Lee carries 64% less traffic than the state average of 8,480 vehicles per day - a critical factor for logistics and site planning. Across the whole network that adds up to 1,487,962 vehicle-miles traveled per day (≈543 million per year), roughly 0.6% of Illinois's statewide total. The average trip takes 32.4 minutes, 5% lower than the state level. At 57% lower than the state level, the 8.8% congestion ratio signals smoother traffic flow - crucial for traffic control improvement and logistics planning. 52% of counties in Illinois see less traffic than Lee's 3,018 vehicles per day. On travel time, Lee runs longer than 30% of counties in Illinois.
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.
6,695
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
23.6%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
66.2 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.
14.7%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
47.1 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$75,445
A significant volume of traffic in Lee County, Illinois utilizes the highway network. The average highway carries 6,695 vehicles per day, 137% more than the average non-highway road in the same area, which carries 2,821 vehicles per day. That average covers 108 highway road miles divided in 124 segments (average segment length 4,590 ft), together carrying 877,849 vehicle-miles traveled per day (≈320 million per year). By highway travel volume, Lee outranks 74% of counties in Illinois. Trucks constitute 23.6% of highway traffic.
Analytical insight
At 23.6%, highway truck share is 36% higher than the state average, marking Lee as a significant freight corridor - underscoring the importance of highway access for logistics operators. 64% of counties in Illinois see a lower highway truck share than Lee's 23.6%. Lee's highway truck count is higher than 47% of counties in Illinois, at roughly 1,579 trucks per day.
Non-highway traffic
Traffic
Traffic
The average number of vehicles that travel each day over any road in the road network.
2,821
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
7.9%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
30.6 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.
8.5%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
50.5 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$76,047
The non-highway road network in Lee County, Illinois supports a substantial volume of traffic. The average non-highway road carries 2,821 vehicles per day, 58% less than the average highway in the same area, which carries 6,695 vehicles per day. That average covers 304 non-highway road miles divided in 2,313 segments (average segment length 694 ft), together carrying 610,112 vehicle-miles traveled per day (≈223 million per year). Trucks constitute 7.9% of non-highway traffic.
Analytical insight
The concentration of trucks on non-highway roads is 66% lower than on highways. At 59% lower than the state level, the non-highway congestion ratio of 8.5% signals easier movement on local roads. 30% of counties in Illinois see shorter overall travel times than Lee. Trip origins here have higher average income than 62% of counties in Illinois. Lee's median driver age is higher than 65% of counties in Illinois.
Time-of-Day & Seasonal Patterns
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–8:00 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 31% below weekday levels.
Seasonal Fluctuation
Busy season:
August–October is the high season, with volumes +6% versus the annual average.
Lowest month:
December is the quietest month, with volumes -9% versus the annual average.
Analytical insight
In Lee County, Illinois, the peak hour concentrates about 7% of the day's traffic, and seasonal swing is mild at +6% in high season.
Traffic Flow Profile Comparison
Metric
Lee
Illinois
Average
Difference
Traffic
3,018
8,480
-64.4%
Truck % (Total Traffic)
17.2%
10.2%
+68.7%
Truck % (Highway)
23.6%
17.3%
+36.1%
Avg. Travel Time
32.4 min
34.1 min
-5.0%
Frequently Asked Questions
The average daily traffic volume is calculated at 3,018 vehicles per day, providing a baseline for daily operations and site assessment.
Lee's average travel time of 32.4 minutes is longer than 30% of counties in Illinois.
Trucks account for approximately 17.2% of the total traffic mix across all road types, with a significantly higher concentration of 23.6% on highways.
The average travel time for drivers is 32.4 minutes, offering a standard metric for commute and delivery route planning.
Traffic volumes are typically 6% higher during August–October. Volumes drop to their lowest levels in December, averaging 2,739 vehicles per day - a 9% decrease from the annual average.
Approximately 61% of highway traffic and 15% of non-highway traffic consists of vehicles whose trip originates outside Lee 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.
Weekday peaks occur between 7:00 AM and 8:00 AM in the morning and between 3:00 PM and 7:00 PM in the evening - about 75% above the daily average.
Drivers on Lee roads have a median age of 50 years, and the median household income of the neighborhoods trips originate from averages $75,932 - 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)
