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Traffic heat map of Genesee County, Michigan: 1,003 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 75 and US 23

Genesee County, Michigan Traffic Counts

How busy are the roads of Genesee County, Michigan? We measure 1,003 road miles, divided into 36,464 segments, with multi-sourced, cross-verified mobile and sensor data. Its busiest road, I 75, carries 64,972 vehicles a day, 8.8 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 icon

Total Traffic Volume & Performance in Genesee County, Michigan

Traffic

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

vehicles per day7,394
Trucks

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

5.9%
Average travel time

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

32.4 min
Congestion ratio

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

16.9%
Drivers’ average age

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

49.2 yrs
Drivers’ average income

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

$75,487

Our data shows 7,394 vehicles per day on the average road in Genesee County, Michigan, and 8,901,981 vehicle-miles traveled per day (≈3.2 billion per year) across its 1,003 miles of monitored roads. Trucks are a smaller part of the mix than across Michigan: 5.9% against 7.7%.

Busier roads than 90% of counties in Michigan

The average road in Genesee carries 7,394 vehicles per day, essentially matching the state average of 7,697. Across the whole network, that travel is about 4.1% of Michigan's statewide total. By volume, Genesee's 7,394 vehicles per day outpaces 90% of counties in Michigan.

The average trip takes 32.4 minutes, on par with the state level. On travel time, Genesee runs shorter than 70% of counties in Michigan.

Congestion is somewhat lower than the state level, at a ratio of 16.9% (8% lower).

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Genesee County, Michigan

Trafficvehicles per day21,185
Trucks9.2%
Average travel time44.6 min
Congestion ratio34.4%
Drivers’ average age49.1 yrs
Drivers’ average income$76,385

A significant share of driving in Genesee County, Michigan, 42% of vehicle-miles, happens on highways. The average highway carries 21,185 vehicles per day, 194% more than the average non-highway road in the same area, which carries 7,209 vehicles per day.

With 17% of the road miles (167 miles in 483 segments), highways punch above their length, carrying 3,699,703 vehicle-miles traveled per day (≈1.4 billion per year).

That is more highway travel volume than 93% of counties in Michigan.

Lower highway truck share than 75% of counties in Michigan

Highway truck concentration here runs 23% lower than the state average, at 9.2%. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.

Genesee's highway truck share (9.2%) is lower than 75% of counties in Michigan. 75% of counties in Michigan see fewer highway trucks per day than Genesee's roughly 1,957.

non-highway traffic icon

Non-highway Traffic in Genesee County, Michigan

Trafficvehicles per day7,209
Trucks3.5%
Average travel time32.2 min
Congestion ratio16.7%
Drivers’ average age49.2 yrs
Drivers’ average income$75,083

Local roads carry more than half of all travel in Genesee County, Michigan (58% of vehicle-miles). A typical local road sees 7,209 vehicles per day.

Local roads make up 83% of the monitored road miles (836 miles in 35,981 segments) but carry less than their share of travel: 5,202,278 vehicle-miles traveled per day (≈1.9 billion per year). Trucks make up 3.5% of non-highway traffic, about 1 in 28 vehicles.

Drivers from higher-income areas than 74% of counties in Michigan

The concentration of trucks on non-highway roads is 62% lower than on highways.

Non-highway congestion (16.7%) runs slightly lower than the state level (9% lower).

Genesee's average driver income is higher than 74% of counties in Michigan. 63% of counties in Michigan have an older driver population than Genesee.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 10:00 AM–12:00 PM and a long afternoon plateau from 12:00 PM to 6:00 PM, with volumes reaching approximately 77% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 10% below weekday levels, the usual weekend dip.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +15% versus the annual average.
Lowest month:
January is the quietest month, with volumes -19% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Genesee County, Michigan, the peak hour concentrates about 7% of the day's traffic, and there is a strong seasonal swing of +15% in high season.

Genesee County vs. Michigan Traffic Comparison

Genesee County's biggest difference from the Michigan average is its truck share, 23% below it. Its highway truck share is also 23% below.

MetricGenesee CountyMichigan averageDifference
Traffic7,3947,697-3.9%
Truck % (Total Traffic)5.9%7.7%-23.3%
Truck % (Highway)9.2%12.0%-22.7%
Avg. Travel Time32.4 min33.6 min-3.5%

How Genesee County compares

Genesee County against nearby counties

Nothing in this table sets Genesee County sharply apart from the 4 areas nearest to it, though it has the second busiest roads of the five.

Genesee 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
Genesee County7,3945.9%8,901,98132.4 min16.9%
Shiawassee County, Michigan3,8938.8%1,681,56534.1 min13.0%
Lapeer County, Michigan5,6456.9%2,168,61333.9 min16.0%
Saginaw County, Michigan5,6876.9%4,506,01635.3 min16.5%
Oakland County, Michigan14,0655.5%27,446,94233.4 min27.7%
Michigan average7,6977.7%N/A33.6 min18.5%

Genesee County ranked within Michigan

Genesee County sits in the top quarter of the Michigan field on highway travel volume, at #6 of 74.

Genesee County ranked among 83 county-level areas in Michigan (1 = highest); measures without data in every county rank a smaller field, down to 74.
MeasureGenesee CountyMichigan rank
Traffic volume (AADT)7,394#9 of 83
Highway vehicle-miles per day3,699,703#6 of 74
Truck share on highways9.2%#56 of 74
Highway trucks per day1,957#19 of 74
Average travel time32.4 min#58 of 83
Average driver income$75,487#22 of 83
Average driver age49.2 yrs#53 of 83

Genesee County ranks #6 of 74 on highway travel volume but #56 of 74 on truck share on highways - the two describe the same roads and are worth reading together rather than either on its own.

Busiest roads in Genesee County, Michigan

On their busiest stretches, the three busiest roads in Genesee County carry 50,077 vehicles a day on average, 6.8 times the typical road in the county (7,394).

I 75 is the busiest road, at 64,972 vehicles a day, 5,885 of them trucks (9.1%). It tops the truck ranking too, with the most trucks.

Trips using Flint Street are long: a median of 55.8 minutes against 32.4 county-wide, the mark of a through route.

Freight stands out on I 475: trucks are 10.9% of the traffic there, against 5.9% county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 75Motorway · 64,972vehicles5,885trucks · 9.1%
Road class
Motorway
Congestion ratio
48.3%
Median trip time
49.6 min
Drivers’ median age
49.2 yrs
Drivers’ average income
$73,828

I 75 is one of the more congested roads here: trips take 48% longer than at free-flow speed, against 17% county-wide.

2US 23Motorway · 45,004vehicles4,172trucks · 9.3%
Road class
Motorway
Congestion ratio
44.4%
Median trip time
44.4 min
Drivers’ median age
49.0 yrs
Drivers’ average income
$89,442

Drivers on US 23 are on long journeys, a median 44.4 minutes against 32.4 county-wide: a through route more than a local street.

3I 69Motorway · 40,254vehicles3,764trucks · 9.3%
Road class
Motorway
Congestion ratio
37.1%
Median trip time
40.6 min
Drivers’ median age
49.5 yrs
Drivers’ average income
$71,859

I 69 is a trunk route for the county, carrying 5.4 times the county average on its busiest stretch; trucks are 9.3% of it, above the county-wide 5.9%.

4Flint StreetSecondary road · 24,698vehicles1,159trucks · 4.7%
Road class
Secondary road
Congestion ratio
59.4%
Median trip time
55.8 min
Drivers’ median age
50.3 yrs
Drivers’ average income
$61,157

Delays build on Flint Street: its congestion ratio of 59% over free-flow time is well above the county's 17%.

5I 475Motorway · 23,612vehicles2,580trucks · 10.9%
Road class
Motorway
Congestion ratio
21.2%
Median trip time
34.9 min
Drivers’ median age
48.3 yrs
Drivers’ average income
$64,074

I 475 carries 3.2 times the county average on its busiest stretch, where the median trip lasts 34.9 minutes.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 75Motorway · #1 by traffic64,972vehicles5,885trucks · 9.1%
2US 23Motorway · #2 by traffic45,004vehicles4,172trucks · 9.3%
3I 69Motorway · #3 by traffic40,254vehicles3,764trucks · 9.3%
4I 475Motorway · #5 by traffic23,612vehicles2,580trucks · 10.9%
5Flint StreetSecondary road · #4 by traffic24,698vehicles1,159trucks · 4.7%
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

GeneseeDepartment 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 Genesee County

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

Need segment-level traffic data?

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