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Traffic heat map of Montgomery County, Ohio: 1,104 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 75 and I 675

Montgomery County, Ohio Traffic Counts

How busy are the roads of Montgomery County, Ohio? We measure 1,104 road miles, divided into 32,728 segments, with multi-sourced, cross-verified mobile and sensor data. It ranks among the top 5 counties in Ohio for average daily traffic. 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 Montgomery County, Ohio

Traffic

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

vehicles per day7,761
Trucks

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

8.6%
Average travel time

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

31.8 min
Congestion ratio

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

20.3%
Drivers’ average age

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

46.8 yrs
Drivers’ average income

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

$83,757

A typical monitored road in Montgomery County, Ohio sees 7,761 vehicles per day, while its 1,104 miles of monitored roads together handle 10,748,482 vehicle-miles traveled per day (≈3.9 billion per year). Trucks are 8.6% of traffic, close to the 9.9% across Ohio.

Busier roads than 95% of counties in Ohio

Montgomery sees 34% higher average daily traffic volume than the state average (7,761 vehicles per day against 5,773), suggesting more demand on each road - more exposure for roadside businesses, and more competition for road space. Across the whole network, that travel is about 4.1% of Ohio's statewide total. By volume, Montgomery's 7,761 vehicles per day outpaces 95% of counties in Ohio.

The average trip takes 31.8 minutes, on par with the state level. Its average travel time of 31.8 minutes is shorter than 77% of counties in Ohio.

Congestion runs 23% higher than the state level, at a ratio of 20.3%, which means more pronounced congestion - relevant for traffic control and delivery planning.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Montgomery County, Ohio

Trafficvehicles per day26,464
Trucks14.2%
Average travel time39.6 min
Congestion ratio40.1%
Drivers’ average age47.0 yrs
Drivers’ average income$84,682

Highways carry about half of all travel in Montgomery County, Ohio, 47% of vehicle-miles. The average highway carries 26,464 vehicles per day, 265% more than the average non-highway road in the same area, which carries 7,260 vehicles per day.

Highways make up 16% of the monitored road miles (180 miles, 854 segments), so they carry more than their share: 5,091,012 vehicle-miles traveled per day (≈1.9 billion per year).

No more than 4 other counties in Ohio move more traffic on their highways.

More highway trucks than 90% of counties in Ohio

Highway truck concentration here (14.2%) closely tracks the state average for similar road classifications. The highway traffic mix is typical for Ohio: neither freight- nor commuter-dominated.

Montgomery's highway truck share (14.2%) is lower than 61% of counties in Ohio. Montgomery's highway truck count is higher than 90% of counties in Ohio, at roughly 3,755 trucks per day.

non-highway traffic icon

Non-highway Traffic in Montgomery County, Ohio

Trafficvehicles per day7,260
Trucks3.6%
Average travel time31.6 min
Congestion ratio19.7%
Drivers’ average age46.6 yrs
Drivers’ average income$83,257

Local roads carry about half of all travel in Montgomery County, Ohio, 53% of vehicle-miles. The average non-highway road carries 7,260 vehicles per day.

Local roads make up 84% of the monitored road miles (924 miles in 31,874 segments) but carry less than their share of travel: 5,657,470 vehicle-miles traveled per day (≈2.1 billion per year). About 1 in 28 vehicles on non-highway roads is a truck (3.6%).

Younger drivers than 83% of counties in Ohio

Compared to highways, non-highway routes see 74% fewer trucks by share.

At 25% higher than the state level, the non-highway congestion ratio of 19.7% signals more friction on local roads.

Montgomery's average driver income is higher than 79% of counties in Ohio. The driver population here skews younger than 83% of counties in Ohio.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–9:00 AM and PM peak 4:00 PM–6:00 PM, with volumes reaching approximately 71% higher than the daily average.
Weekend traffic:
Weekends are much quieter: volumes run about 24% below weekday levels, the signature of a commute-driven road network.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
Traffic is nearly flat through the year: even May–July, the busiest stretch, runs only +4% versus the annual average.
Lowest month:
January is the quietest month, with volumes -12% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Montgomery County, Ohio, the peak hour concentrates about 7% of the day's traffic, and traffic stays steady through the year (+4% in high season).

Montgomery County vs. Ohio Traffic Comparison

The average daily traffic per road sets Montgomery County apart: 34% above the Ohio average.

MetricMontgomery CountyOhio averageDifference
Traffic7,7615,773+34.4%
Truck % (Total Traffic)8.6%9.9%-13.0%
Truck % (Highway)14.2%14.9%-4.7%
Avg. Travel Time31.8 min32.9 min-3.3%

How Montgomery County compares

Montgomery County moves more traffic than any nearby county

Set against the average of the 4 areas nearest to it, Montgomery County moves 3.2 times the total daily travel and is 60.7% more congested; it has the busiest roads of the five. It is where traffic concentrates in this corner of the map - the local bottleneck, with more vehicles per road AND less room to absorb them.

Montgomery County and the 4 nearest county-level areas by centroid distance, with the Ohio average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Montgomery County7,7618.6%10,748,48231.8 min20.3%
Miami County, Ohio3,73611.6%2,543,51234.8 min12.7%
Preble County, Ohio2,26819.0%1,309,94332.1 min7.6%
Warren County, Ohio6,8159.4%5,695,18931.1 min16.5%
Greene County, Ohio4,5107.2%4,044,16732.6 min13.6%
Ohio average5,7739.9%N/A32.9 min16.5%

Montgomery County ranked within Ohio

Montgomery County sits in the top quarter of the Ohio field on average daily traffic volume, at #5 of 88.

Montgomery County ranked among 88 county-level areas in Ohio (1 = highest); measures without data in every county rank a smaller field, down to 83.
MeasureMontgomery CountyOhio rank
Traffic volume (AADT)7,761#5 of 88
Highway vehicle-miles per day5,091,012#5 of 83
Truck share on highways14.2%#51 of 83
Highway trucks per day3,755#9 of 83
Average travel time31.8 min#68 of 88
Average driver income$83,757#19 of 88
Average driver age46.8 yrs#73 of 88

Montgomery County ranks #5 of 88 on average daily traffic volume but #73 of 88 on average driver age - the two describe the same roads and are worth reading together rather than either on its own.

Busiest roads in Montgomery County, Ohio

Traffic concentrates on a few corridors: the three busiest roads average 80,901 vehicles a day, against 7,761 on the average road in Montgomery County.

I 75 is the busiest road, at 119,738 vehicles a day, 12,922 of them trucks (10.8%). No other road comes close: I 675, in second place, carries 61,933. It tops the truck ranking too, with the most trucks.

Freight stands out on I 70: trucks are 19.0% of the traffic there, against 8.6% county-wide.

Trips using I 70 are long: a median of 44.4 minutes against 31.8 county-wide, the mark of a through route.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 75Motorway · 119,738vehicles12,922trucks · 10.8%
Road class
Motorway
Congestion ratio
79.6%
Median trip time
39.0 min
Drivers’ median age
47.1 yrs
Drivers’ average income
$80,037

I 75 is one of the more congested roads here: trips take 80% longer than at free-flow speed, against 20% county-wide.

2I 675Motorway · 61,933vehicles3,954trucks · 6.4%
Road class
Motorway
Congestion ratio
45.3%
Median trip time
35.4 min
Drivers’ median age
46.8 yrs
Drivers’ average income
$100,250

I 675 is a trunk route for the county, carrying 8.0 times the county average on its busiest stretch; trucks are 6.4% of it, below the county-wide 8.6%.

3US 35Motorway · 61,032vehicles4,800trucks · 7.9%
Road class
Motorway
Congestion ratio
48.7%
Median trip time
34.6 min
Drivers’ median age
46.1 yrs
Drivers’ average income
$82,210

US 35 carries 7.9 times the county average at its busiest, 4,800 of them trucks (7.9%, below the county-wide 8.6%).

4I 70Motorway · 60,790vehicles11,548trucks · 19.0%
Road class
Motorway
Congestion ratio
50.0%
Median trip time
44.4 min
Drivers’ median age
48.6 yrs
Drivers’ average income
$82,450

Delays build on I 70: its congestion ratio of 50% over free-flow time is well above the county's 20%.

5C.J. Mclin Jr. ExpresswayMotorway · 34,042vehicles2,577trucks · 7.6%
Road class
Motorway
Congestion ratio
28.0%
Median trip time
31.7 min
Drivers’ median age
46.7 yrs
Drivers’ average income
$66,306

C.J. Mclin Jr. Expressway peaks at 34,042 vehicles a day, 4.4 times the county average; trucks are 7.6% of it, below the county-wide 8.6%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 75Motorway · #1 by traffic119,738vehicles12,922trucks · 10.8%
2I 70Motorway · #4 by traffic60,790vehicles11,548trucks · 19.0%
3US 35Motorway · #3 by traffic61,032vehicles4,800trucks · 7.9%
4I 675Motorway · #2 by traffic61,933vehicles3,954trucks · 6.4%
5SR 4Motorway · 28,594vehicles2,963trucks · 10.4%
Road class
Motorway
Congestion ratio
31.3%
Median trip time
33.5 min
Drivers’ median age
44.3 yrs
Drivers’ average income
$75,913

SR 4 carries 3.7 times the county average at its busiest, 2,963 of them trucks (10.4%, above the county-wide 8.6%).

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

MontgomeryDepartment 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 Montgomery County

The same traffic breakdown for the areas closest to Montgomery County, Ohio.

Need segment-level traffic data?

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