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Traffic heat map of Ionia County, Michigan: 364 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 96 and Dexter Street

Ionia County, Michigan Traffic Counts

How busy are the roads of Ionia County, Michigan? We measure 364 road miles, divided into 6,869 segments, with multi-sourced, cross-verified mobile and sensor data. About 1 in 8 vehicles here is a truck, against 1 in 13 across Michigan. 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 Ionia County, Michigan

Traffic

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

vehicles per day3,605
Trucks

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

12.1%
Average travel time

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

32.8 min
Congestion ratio

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

10.9%
Drivers’ average age

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

45.0 yrs
Drivers’ average income

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

$77,486

The average monitored road in Ionia County, Michigan carries 3,605 vehicles per day. Across its 364 miles of monitored roads, that adds up to 1,847,214 vehicle-miles traveled per day (≈674 million per year). About 1 in 8 vehicles is a truck, well above the 7.7% across Michigan - a freight-heavy mix.

Traffic 53% below the Michigan average

Ionia sees 53% lower average daily traffic volume than the state average (3,605 vehicles per day against 7,697), suggesting less demand on each road - very light roads: easy truck access, but little passing trade for roadside retail. In total volume terms, its road network carries about 0.8% of Michigan's statewide total of vehicle-miles. 56% of counties in Michigan see more traffic than Ionia's 3,605 vehicles per day.

Journey times here (32.8 minutes on average) closely track the state level. 61% of counties in Michigan have a longer average travel time than Ionia's 32.8 minutes.

The congestion ratio of 10.9% is 41% lower, pointing to smoother traffic flow than the state level - fewer delays make delivery windows more reliable.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Ionia County, Michigan

Trafficvehicles per day18,290
Trucks17.2%
Average travel time61.0 min
Congestion ratio44.2%
Drivers’ average age43.8 yrs
Drivers’ average income$90,808

A little more than half of the driving in Ionia County, Michigan happens on highways: 55% of all vehicle-miles. The average highway carries 18,290 vehicles per day, 441% more than the average non-highway road in the same area, which carries 3,382 vehicles per day.

Yet highways are only 14% of the road network, 52 miles in 103 segments, so each mile of them is 3.9 times as busy as the average road mile.

That is more highway travel volume than 71% of counties in Michigan.

Higher highway truck share than 92% of counties in Michigan

The concentration of trucks on highways (17.2%) is 44% higher than the state average for similar road classifications. Highways here lean toward freight, so highway access is a real asset for logistics operators.

By truck concentration, highways here outrank 92% of counties in Michigan. 92% of counties in Michigan see fewer highway trucks per day than Ionia's roughly 3,144.

non-highway traffic icon

Non-highway Traffic in Ionia County, Michigan

Trafficvehicles per day3,382
Trucks5.9%
Average travel time32.4 min
Congestion ratio10.4%
Drivers’ average age45.7 yrs
Drivers’ average income$72,933

Local roads carry a significant share of travel in Ionia County, Michigan: 45% of all vehicle-miles. A typical local road sees 3,382 vehicles per day.

Spread over 312 miles and 6,766 segments, 86% of the road network, local roads carry a lighter load per mile: 830,674 vehicle-miles traveled per day (≈303 million per year). Trucks make up 5.9% of non-highway traffic, about 1 in 17 vehicles.

Younger drivers than 91% of counties in Michigan

Compared to highways, non-highway routes see 66% 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.

Trip origins here have higher average income than 79% of counties in Michigan. Ionia's median driver age is lower than 91% of counties in Michigan.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

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

Ionia County vs. Michigan Traffic Comparison

Of the four measures, truck share differs most: Ionia County runs 58% above the Michigan average. Its average daily traffic per road, by contrast, is 53% below.

MetricIonia CountyMichigan averageDifference
Traffic3,6057,697-53.2%
Truck % (Total Traffic)12.1%7.7%+57.6%
Truck % (Highway)17.2%12.0%+43.7%
Avg. Travel Time32.8 min33.6 min-2.2%

How Ionia County compares

Ionia County has a higher truck share than any nearby county

Set against the average of the 4 areas nearest to it, Ionia County moves 34.8% of the total daily travel and carries 32.9% less traffic on a typical road; it has the fourth busiest roads of the five. Less traffic and more room for it - the roads here run both quieter and freer than the areas around them.

Ionia 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
Ionia County3,60512.1%1,847,21432.8 min10.9%
Montcalm County, Michigan3,6658.1%1,654,19234.5 min12.2%
Clinton County, Michigan3,32010.9%2,641,85732.1 min9.3%
Kent County, Michigan9,2406.8%14,168,81031.4 min23.7%
Eaton County, Michigan5,26210.2%2,773,42834.2 min14.4%
Michigan average7,6977.7%N/A33.6 min18.5%

Ionia County ranked within Michigan

Ionia County sits in the top quarter of the Michigan field on truck share on highways, at #7 of 74.

Ionia County ranked among 83 county-level areas in Michigan (1 = highest); measures without data in every county rank a smaller field, down to 74.
MeasureIonia CountyMichigan rank
Traffic volume (AADT)3,605#47 of 83
Highway vehicle-miles per day1,016,540#22 of 74
Truck share on highways17.2%#7 of 74
Highway trucks per day3,144#7 of 74
Average travel time32.8 min#51 of 83
Average driver income$77,486#18 of 83
Average driver age45.0 yrs#76 of 83

Ionia County ranks #7 of 74 on truck share on highways but #76 of 83 on average driver age - the two describe the same roads and are worth reading together rather than either on its own.

Busiest roads in Ionia County, Michigan

Traffic concentrates on a few corridors: the three busiest roads average 22,316 vehicles a day, against 3,605 on the average road in Ionia County.

I 96 leads with 39,163 vehicles a day, 6,731 of them trucks (17.2%). That is 2.4 times the next road, Dexter Street (16,510). It tops the truck ranking too, with the most trucks.

Trips using I 96 are long: a median of 61.0 minutes against 32.8 county-wide, the mark of a through route.

Dexter Street is busy with cars rather than freight: only 5.0% of its traffic is trucks, against 12.1% county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 96Motorway · 39,163vehicles6,731trucks · 17.2%
Road class
Motorway
Congestion ratio
44.2%
Median trip time
61.0 min
Drivers’ median age
43.8 yrs
Drivers’ average income
$90,808

Delays build on I 96: its congestion ratio of 44% over free-flow time is well above the county's 11%.

2Dexter StreetPrimary road · 16,510vehicles827trucks · 5.0%
Road class
Primary road
Congestion ratio
39.0%
Median trip time
29.9 min
Drivers’ median age
45.5 yrs
Drivers’ average income
$67,858

Travel on Dexter Street's busiest stretch runs 39% over free-flow time, against 11% across the county, so expect slower peak hours.

3State StreetPrimary road · 11,275vehicles628trucks · 5.6%
Road class
Primary road
Congestion ratio
26.3%
Median trip time
32.8 min
Drivers’ median age
46.1 yrs
Drivers’ average income
$65,277

State Street carries 3.1 times the county average at its busiest, 628 of them trucks (5.6%, below the county-wide 12.1%).

4State RoadPrimary road · 9,172vehicles641trucks · 7.0%
Road class
Primary road
Congestion ratio
27.3%
Median trip time
33.4 min
Drivers’ median age
45.5 yrs
Drivers’ average income
$71,965

State Road carries 2.5 times the county average on its busiest stretch, where the median trip lasts 33.4 minutes.

5Storey RoadSecondary road · 8,851vehicles370trucks · 4.2%
Road class
Secondary road
Congestion ratio
21.7%
Median trip time
34.1 min
Drivers’ median age
46.4 yrs
Drivers’ average income
$65,439

At 2.5 times the county average, Storey Road draws drivers from neighborhoods averaging $65,439 in household income.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 96Motorway · #1 by traffic39,163vehicles6,731trucks · 17.2%
2Dexter StreetPrimary road · #2 by traffic16,510vehicles827trucks · 5.0%
3State RoadPrimary road · #4 by traffic9,172vehicles641trucks · 7.0%
4State StreetPrimary road · #3 by traffic11,275vehicles628trucks · 5.6%
5Lincoln AvenuePrimary road · 7,622vehicles417trucks · 5.5%
Road class
Primary road
Congestion ratio
24.9%
Median trip time
30.9 min
Drivers’ median age
45.0 yrs
Drivers’ average income
$66,288

The busiest stretch of Lincoln Avenue carries 2.1 times the county average; trucks are 5.5% of it, below the county-wide 12.1%.

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

IoniaDepartment 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 Ionia County

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

Need segment-level traffic data?

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