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Cass County, Illinois Traffic Counts

This page delivers traffic analytics for Cass County, Illinois. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for Cass County, Illinois among 112 road miles divided in 1,136 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 522 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.
Data current as of:
Q3 2026
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Total Traffic Volume & Performance

Traffic

Traffic

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

1,986

Trucks

Trucks

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

8.3%

Average travel time

Average travel time

The average time of travel averaged among all vehicles traveling on the road network.

35.8 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.

6.9%

Drivers’ average age

Drivers’ average age

Average age of residents in the geographic areas where the vehicle trips originated.

48.6 yrs

Drivers’ average income

Drivers’ average income

Average income of residents in the geographic areas where the vehicle trips originated.

$67,048

Our data indicates an estimated average traffic volume of 1,986 vehicles per day in Cass County, Illinois that results in 222,522 vehicle-miles traveled per day (≈81.2 million per year). The traffic stream is comprised of an average of 1 truck for every 12 vehicles. Typical time spent behind the wheel per trip is 35.8 minutes, which already accounts for delays at signals, intersections, and congestion.

Analytical insight

When compared to the Illinois state averages: Cass's average daily traffic volume is 77% lower than the state average - 1,986 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 222,522 vehicle-miles traveled per day (≈81.2 million per year), roughly 0.1% of Illinois's statewide total. The average trip takes 35.8 minutes, 5% higher than the state level. The congestion ratio of 6.9% is 67% lower, pointing to smoother traffic flow than the state level - crucial for traffic control improvement and logistics planning. Cass carries more traffic than 16% of counties in Illinois. Its average travel time of 35.8 minutes is longer than 80% of counties in Illinois.

Highway vs. Non-Highway Traffic Analysis

Analytical insight

N/A
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Non-highway traffic

Traffic

Traffic

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

1,986

Trucks

Trucks

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

8.3%

Average travel time

Average travel time

The average time of travel averaged among all vehicles traveling on the road network.

35.8 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.

6.9%

Drivers’ average age

Drivers’ average age

Average age of residents in the geographic areas where the vehicle trips originated.

48.6 yrs

Drivers’ average income

Drivers’ average income

Average income of residents in the geographic areas where the vehicle trips originated.

$67,048

The non-highway road network in Cass County, Illinois supports a substantial volume of traffic. The average non-highway road carries 1,986 vehicles per day. That average covers 112 non-highway road miles divided in 1,136 segments (average segment length 522 ft), together carrying 222,522 vehicle-miles traveled per day (≈81.2 million per year). Trucks constitute 8.3% of non-highway traffic.

Analytical insight

At 67% lower than the state level, the non-highway congestion ratio of 6.9% signals easier movement on local roads. Overall, average travel time here is longer than 80% of counties in Illinois. 33% of counties in Illinois see lower average driver income among trip origins than Cass. 38% of counties in Illinois have a younger driver population than Cass.

Time-of-Day & Seasonal Patterns

Analytical insight

In Cass County, Illinois, the peak hour concentrates about 7% of the day's traffic.

Traffic Flow Profile Comparison

Metric

Cass

Illinois
Average

Difference

Traffic

1,986

8,480

-76.6%

Truck % (Total Traffic)

8.3%

10.2%

-18.2%

Truck % (Highway)

17.3%

Avg. Travel Time

35.8 min

34.1 min

+4.9%

How Cass County compares

Cass County against nearby areas

Cass County tracks the 4 areas around it closely - no measure in this table sets it far apart from the areas immediately next to it, though it has the third busiest roads of the five.

Cass County and the 4 nearest county-level areas by centroid distance, with the Illinois average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Cass County1,9868.3%222,52235.8 min6.9%
Morgan County, Illinois3,91211.8%864,71833.4 min10.7%
Schuyler County, Illinois1,3759.4%184,77033.9 min5.9%
Menard County, Illinois2,1807.2%181,45431.6 min7.4%
Brown County, Illinois1,9769.0%125,03133.6 min7.4%
Illinois average8,48010.2%N/A34.1 min20.6%

Cass County ranked within Illinois

Cass County sits in the bottom quarter of the Illinois field on average daily traffic volume, at #86 of 102.

Where Cass County sits among Illinois's county-level areas on each measure. Rank 1 is the highest value in the state, whether or not that is the outcome you want; the field size differs by measure because not every county carries highway data.
MeasureCass CountyIllinois rank
Traffic volume (AADT)1,986#86 of 102
Average travel time35.8 min#21 of 102
Average driver income$67,048#69 of 102
Average driver age48.6 yrs#64 of 102

Cass County ranks #21 of 102 on average travel time but #86 of 102 on average daily traffic volume - the two describe the same roads and are worth reading together rather than either on its own.

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

IllinoisDepartment of Transportation

Historical traffic pattern databases

U.S. Census Bureau
All metrics represent estimates based on statistical modeling and are intended for strategic planning purposes.
TrafficZoom methodology
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Data current as of:
Q3 2026

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Counties near Cass County

The same traffic breakdown for the areas closest to Cass County, Illinois.

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