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Traffic heat map of Iosco County, Michigan: 202 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Huron Road and State Street

Iosco County, Michigan Traffic Counts

How busy are the roads of Iosco County, Michigan? We measure 202 road miles, divided into 1,888 segments, with multi-sourced, cross-verified mobile and sensor data. Its busiest road, Huron Road, carries 14,005 vehicles a day, 4.1 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 Iosco County, Michigan

Traffic

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

vehicles per day3,444
Trucks

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

6.4%
Average travel time

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

35.8 min
Congestion ratio

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

9.7%
Drivers’ average age

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

58.6 yrs
Drivers’ average income

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

$50,595

The average monitored road in Iosco County, Michigan carries 3,444 vehicles per day. Across its 202 miles of monitored roads, that adds up to 515,431 vehicle-miles traveled per day (≈188 million per year). Trucks are a smaller part of the mix than across Michigan: 6.4% against 7.7%.

Longer trips than 79% of counties in Michigan

Iosco sees 55% lower average daily traffic volume than the state average (3,444 vehicles per day against 7,697), suggesting less demand on each road - quiet roads that suit freight movement more than drive-by retail. Network-wide, Iosco accounts for about 0.2% of Michigan's statewide total of vehicle-miles. By volume, Iosco's 3,444 vehicles per day trails 61% of counties in Michigan.

The average trip takes 35.8 minutes, 7% higher than the state level. On travel time, Iosco runs longer than 79% of counties in Michigan.

Congestion runs 48% lower than the state level, at a ratio of 9.7%, which means smoother traffic flow - fewer delays make delivery windows more reliable.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Iosco County, Michigan

Trafficvehicles per day6,774
Trucks7.5%
Average travel time30.7 min
Congestion ratio13.6%
Drivers’ average age58.5 yrs
Drivers’ average income$50,902

A significant share of driving in Iosco County, Michigan, 35% of vehicle-miles, happens on highways. The average highway carries 6,774 vehicles per day, 185% more than the average non-highway road in the same area, which carries 2,378 vehicles per day.

Highways make up 14% of the monitored road miles (29 miles, 458 segments), so they carry more than their share: 181,589 vehicle-miles traveled per day (≈66.3 million per year).

Lower highway truck share than 96% of counties in Michigan

Highway truck concentration here runs 37% lower than the state average, at 7.5%. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.

By truck concentration, highways here trail 96% of counties in Michigan. By raw truck volume, Iosco carries fewer highway trucks than 82% of counties in Michigan.

non-highway traffic icon

Non-highway Traffic in Iosco County, Michigan

Trafficvehicles per day2,378
Trucks5.8%
Average travel time37.5 min
Congestion ratio8.4%
Drivers’ average age58.9 yrs
Drivers’ average income$50,329

A little more than half of the driving in Iosco County, Michigan happens on local roads: 65% of all vehicle-miles. A typical local road sees 2,378 vehicles per day.

Spread over 173 miles and 1,430 segments, 86% of the road network, local roads carry a lighter load per mile: 333,842 vehicle-miles traveled per day (≈122 million per year). About 1 in 17 vehicles on non-highway roads is a truck (5.8%).

Drivers from lower-income areas than 98% of counties in Michigan

Non-highway roads carry a truck concentration that's 23% lower than the highway network.

At 54% lower than the state level, the non-highway congestion ratio of 8.4% signals easier movement on local roads.

Iosco's average driver income is lower than 98% of counties in Michigan. The driver population here skews older than 96% of counties in Michigan.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

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

Iosco County vs. Michigan Traffic Comparison

Iosco County's biggest difference from the Michigan average is its average daily traffic per road, 55% below it. Its highway truck share is also 37% below.

MetricIosco CountyMichigan averageDifference
Traffic3,4447,697-55.3%
Truck % (Total Traffic)6.4%7.7%-17.0%
Truck % (Highway)7.5%12.0%-37.3%
Avg. Travel Time35.8 min33.6 min+6.7%

How Iosco County compares

Iosco County against nearby counties

Iosco 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.

Iosco 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
Iosco County3,4446.4%515,43135.8 min9.7%
Alcona County, Michigan1,2756.9%224,13734.2 min4.3%
Ogemaw County, Michigan4,0827.9%687,03133.6 min12.0%
Arenac County, Michigan4,7089.5%812,39943.6 min9.2%
Oscoda County, Michigan2,4567.8%215,87237.5 min7.2%
Michigan average7,6977.7%N/A33.6 min18.5%

Iosco County ranked within Michigan

Average driver income places Iosco County #81 of 83 in Michigan - the bottom quarter of the state.

Iosco County ranked among 83 county-level areas in Michigan (1 = highest); measures without data in every county rank a smaller field, down to 74.
MeasureIosco CountyMichigan rank
Traffic volume (AADT)3,444#51 of 83
Highway vehicle-miles per day181,589#64 of 74
Truck share on highways7.5%#71 of 74
Highway trucks per day508#61 of 74
Average travel time35.8 min#18 of 83
Average driver income$50,595#81 of 83
Average driver age58.6 yrs#4 of 83

Iosco County ranks #4 of 83 on average driver age but #81 of 83 on average driver income. The driver population here skews older and lower-income than most of Michigan.

Busiest roads in Iosco County, Michigan

The three busiest roads in Iosco County average 11,241 vehicles a day, 3.3 times the county average of 3,444 across all its monitored roads.

Huron Road leads with 14,005 vehicles a day, 811 of them trucks (5.8%). It tops the truck ranking too, with the most trucks.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Huron RoadTrunk road · 14,005vehicles811trucks · 5.8%
Road class
Trunk road
Congestion ratio
20.0%
Median trip time
31.0 min
Drivers’ median age
58.2 yrs
Drivers’ average income
$47,036

Huron Road is one of the more congested roads here: trips take 20% longer than at free-flow speed, against 10% county-wide.

2State StreetTrunk road · 10,061vehicles641trucks · 6.4%
Road class
Trunk road
Congestion ratio
26.6%
Median trip time
29.6 min
Drivers’ median age
58.2 yrs
Drivers’ average income
$46,875

Delays build on State Street: its congestion ratio of 27% over free-flow time is well above the county's 10%.

3Bay StreetTrunk road · 9,658vehicles524trucks · 5.4%
Road class
Trunk road
Congestion ratio
14.7%
Median trip time
28.6 min
Drivers’ median age
58.6 yrs
Drivers’ average income
$51,666

At 2.8 times the county average, Bay Street draws drivers from neighborhoods averaging $51,666 in household income.

4Lake StreetTrunk road · 8,448vehicles473trucks · 5.6%
Road class
Trunk road
Congestion ratio
12.2%
Median trip time
29.0 min
Drivers’ median age
58.5 yrs
Drivers’ average income
$51,403

The busiest stretch of Lake Street carries 2.5 times the county average; trucks are 5.6% of it, below the county-wide 6.4%.

5Huron DriveTrunk road · 7,821vehicles622trucks · 8.0%
Road class
Trunk road
Congestion ratio
14.8%
Median trip time
30.6 min
Drivers’ median age
58.1 yrs
Drivers’ average income
$50,473

On its busiest stretch, Huron Drive carries 2.3 times the county average; trucks are 8.0% of it, above the county-wide 6.4%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Huron RoadTrunk road · #1 by traffic14,005vehicles811trucks · 5.8%
2State StreetTrunk road · #2 by traffic10,061vehicles641trucks · 6.4%
3Huron DriveTrunk road · #5 by traffic7,821vehicles622trucks · 8.0%
4Bay StreetTrunk road · #3 by traffic9,658vehicles524trucks · 5.4%
5Lake StreetTrunk road · #4 by traffic8,448vehicles473trucks · 5.6%
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

IoscoDepartment 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 Iosco County

The same traffic breakdown for the areas closest to Iosco County, Michigan.

Need segment-level traffic data?

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