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Traffic heat map of Cass County, Michigan: 407 miles of roads shaded from blue (light) to red (heavy traffic), busiest on US-12 and Spruce Street

Cass County, Michigan Traffic Counts

How busy are the roads of Cass County, Michigan? We measure 407 road miles, divided into 7,949 segments, with multi-sourced, cross-verified mobile and sensor data. Its busiest road, US-12, carries 12,065 vehicles a day, 3.7 times the average road. The breakdown below covers volume, trucks, congestion and driver profiles for retailers, logistics planners and engineers.
Data sourced from TrafficZoom's proprietary analytics platform.
Data current as of:
Q3 2026
Updated:
September 29, 2026
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Total Traffic Volume & Performance in Cass County, Michigan

Traffic

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

vehicles per day3,283
Trucks

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

6.6%
Average travel time

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

32.9 min
Congestion ratio

The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network.

10.4%
Drivers’ average age

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

50.5 yrs
Drivers’ average income

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

$71,413

The average monitored road in Cass County, Michigan carries 3,283 vehicles per day. Across its 407 miles of monitored roads, that adds up to 1,073,021 vehicle-miles traveled per day (≈392 million per year). About 1 in 15 vehicles is a truck, in line with Michigan (7.7%).

Traffic 57% below the Michigan average

Cass's average daily traffic volume is 57% lower than the state average - 3,283 vehicles per day against 7,697 - suggesting less traffic load per road - quiet roads that suit freight movement more than drive-by retail. In total volume terms, its road network carries about 0.5% of Michigan's statewide total of vehicle-miles. 66% of counties in Michigan see more traffic than Cass's 3,283 vehicles per day.

The average trip takes 32.9 minutes, on par with the state level. Its average travel time of 32.9 minutes is shorter than 60% of counties in Michigan.

At 44% lower than the state level, the 10.4% congestion ratio signals smoother traffic flow - fewer delays make delivery windows more reliable.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Cass County, Michigan

Trafficvehicles per day2,787
Trucks8.7%
Average travel time35.8 min
Congestion ratio6.8%
Drivers’ average age50.5 yrs
Drivers’ average income$76,762

With 3% of vehicle-miles, highways play a minor role in how Cass County, Michigan travels. The average highway carries 2,787 vehicles per day, 15% less than the average non-highway road in the same area, which carries 3,286 vehicles per day.

Highways make up 2% of the monitored road miles (10 miles, 46 segments), so they carry more than their share: 32,574 vehicle-miles traveled per day (≈11.9 million per year).

Fewer highway trucks than 90% of counties in Michigan

Highway truck concentration here runs 28% lower than the state average, at 8.7%. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.

Cass's highway truck share (8.7%) is lower than 82% of counties in Michigan. 90% of counties in Michigan see more highway trucks per day than Cass's roughly 241.

non-highway traffic icon

Non-highway Traffic in Cass County, Michigan

Trafficvehicles per day3,286
Trucks6.5%
Average travel time32.9 min
Congestion ratio10.4%
Drivers’ average age50.5 yrs
Drivers’ average income$71,070

Local roads carry nearly all of the traffic in Cass County, Michigan, 97% of all vehicle-miles. A typical local road sees 3,286 vehicles per day.

Local roads also make up about 98% of the monitored road miles: 398 miles in 7,903 segments, together carrying 1,040,447 vehicle-miles traveled per day (≈380 million per year). About 1 in 15 vehicles on non-highway roads is a truck (6.5%).

Local congestion 43% below the Michigan average

Compared to highways, non-highway routes see 25% fewer trucks by share.

At 43% lower than the state level, the non-highway congestion ratio of 10.4% signals easier movement on local roads.

Cass's average driver income is higher than 67% of counties in Michigan. The driver population here skews younger than 51% of counties in Michigan.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

In Cass County, Michigan, the peak hour concentrates about 8% of the day's traffic.

Cass County vs. Michigan Traffic Comparison

Cass County's biggest difference from the Michigan average is its average daily traffic per road, 57% below it. Its highway truck share is also 28% below.

MetricCass CountyMichigan averageDifference
Traffic3,2837,697-57.3%
Truck % (Total Traffic)6.6%7.7%-14.4%
Truck % (Highway)8.7%12.0%-27.6%
Avg. Travel Time32.9 min33.6 min-2.1%

How Cass County compares

Cass County moves the least traffic of its nearby counties

Compared with its 4 closest neighbours, Cass County moves 31.8% of the total daily travel and runs 6.2 percentage points less truck traffic; it has the quietest roads of the five. Smaller and quieter on both counts: a shorter network than the areas around it, carrying lighter traffic across it.

Cass County and the 4 nearest county-level areas by centroid distance, with the Michigan average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Cass County3,2836.6%1,073,02132.9 min10.4%
Berrien County, Michigan4,42315.4%4,611,85934.8 min12.0%
Elkhart County, Indiana5,75614.3%5,039,78933.0 min14.7%
Van Buren County, Michigan3,61414.1%2,531,68132.1 min12.3%
St. Joseph County, Michigan3,4797.5%1,323,92436.2 min10.8%
Michigan average7,6977.7%N/A33.6 min18.5%

Cass County ranked within Michigan

Highway travel volume places Cass County #72 of 74 in Michigan - the bottom quarter of the state.

Cass County ranked among 83 county-level areas in Michigan (1 = highest); measures without data in every county rank a smaller field, down to 74.
MeasureCass CountyMichigan rank
Traffic volume (AADT)3,283#55 of 83
Highway vehicle-miles per day32,574#72 of 74
Truck share on highways8.7%#61 of 74
Highway trucks per day241#67 of 74
Average travel time32.9 min#50 of 83
Average driver income$71,413#28 of 83
Average driver age50.5 yrs#43 of 83

The two ends of this table sit far apart: #28 of 83 on average driver income, against #72 of 74 on highway travel volume.

Busiest roads in Cass County, Michigan

Traffic concentrates on a few corridors: the three busiest roads average 11,038 vehicles a day, against 3,283 on the average road in Cass County.

US-12 is the busiest road, at 12,065 vehicles a day, 897 of them trucks (7.4%). It tops the truck ranking too, with the most trucks.

Traffic and freight follow different roads here: only 2 of the five busiest roads also make the top 5 for trucks.

Drivers on Division Street come from neighborhoods with an average household income of $53,431, 25% below the county average of $71,413.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1US-12Primary road · 12,065vehicles897trucks · 7.4%
Road class
Primary road
Congestion ratio
28.2%
Median trip time
30.0 min
Drivers’ median age
48.4 yrs
Drivers’ average income
$78,289

Delays build on US-12: its congestion ratio of 28% over free-flow time is well above the county's 10%.

2Spruce StreetSecondary road · 10,578vehicles425trucks · 4.0%
Road class
Secondary road
Congestion ratio
25.5%
Median trip time
30.7 min
Drivers’ median age
52.2 yrs
Drivers’ average income
$57,031

Travel on Spruce Street's busiest stretch runs 25% over free-flow time, against 10% across the county, so expect slower peak hours.

3Main StreetSecondary road · 10,472vehicles411trucks · 3.9%
Road class
Secondary road
Congestion ratio
24.9%
Median trip time
28.9 min
Drivers’ median age
52.8 yrs
Drivers’ average income
$54,295

At 3.2 times the county average, Main Street draws drivers from neighborhoods averaging $54,295 in household income.

4Pulaski HighwayMotorway · 9,850vehicles847trucks · 8.6%
Road class
Motorway
Median trip time
35.4 min
Drivers’ median age
49.0 yrs
Drivers’ average income
$76,836

The busiest stretch of Pulaski Highway carries 3.0 times the county average; trucks are 8.6% of it, above the county-wide 6.6%.

5Division StreetSecondary road · 9,066vehicles389trucks · 4.3%
Road class
Secondary road
Congestion ratio
20.3%
Median trip time
28.1 min
Drivers’ median age
52.7 yrs
Drivers’ average income
$53,431

On its busiest stretch, Division Street carries 2.8 times the county average; trucks are 4.3% of it, below the county-wide 6.6%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1US-12Primary road · #1 by traffic12,065vehicles897trucks · 7.4%
2Pulaski HighwayMotorway · #4 by traffic9,850vehicles847trucks · 8.6%
3State StreetPrimary road · 8,794vehicles472trucks · 5.4%
Road class
Primary road
Congestion ratio
20.6%
Median trip time
33.7 min
Drivers’ median age
53.2 yrs
Drivers’ average income
$73,058

State Street peaks at 8,794 vehicles a day, 2.7 times the county average; trucks are 5.4% of it, below the county-wide 6.6%.

4Detroit RoadTrunk road · 5,716vehicles471trucks · 8.2%
Road class
Trunk road
Congestion ratio
7.5%
Median trip time
35.8 min
Drivers’ median age
50.8 yrs
Drivers’ average income
$76,583

Detroit Road carries 74% more than the county average on its busiest stretch, where the median trip lasts 35.8 minutes.

5Old M-205Primary road · 4,756vehicles441trucks · 9.3%
Road class
Primary road
Congestion ratio
13.7%
Median trip time
29.5 min
Drivers’ median age
50.9 yrs
Drivers’ average income
$68,212

At 45% more than the county average, Old M-205 draws drivers from neighborhoods averaging $68,212 in household income.

How to read these road counts
  • The first number is AADT, annual average daily traffic: the vehicles passing a point on an average day, both directions combined and trucks included. On a divided highway both carriageways are added together.
  • Traffic changes along a road, with more near interchanges and towns and less in open country. Every figure for a road describes its busiest stretch in the county, so the two rankings show the same numbers for the same road.
  • The second number is the trucks on that stretch, a part of its AADT. The bar splits the AADT into cars and light vehicles (blue) and trucks (amber).
  • See segment-level AADT for any road on TrafficZoom.

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

CassDepartment of Transportation

Demographic Baseline for O-D Modeling

U.S. Census Bureau
All metrics represent estimates based on statistical modeling and are intended for strategic planning purposes.
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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, Michigan.

Need segment-level traffic data?

Identify traffic patterns street by street and analyze the exact corridors that matter to your project.