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Traffic heat map of Hamilton County, Ohio: 1,238 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Mill Creek Expressway

Hamilton County, Ohio Traffic Counts

Traffic analytics for Hamilton County, Ohio, calculated from real-world mobile and sensor networks on 47,198 road segments (1,238 road miles, about 139 ft each). It ranks among the top 3 counties in Ohio for average daily traffic. Use the figures below to move from assumptions to certainty on retail locations, logistics and road planning.
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 Hamilton County, Ohio

Traffic

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

vehicles per day10,296
Trucks

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

7.1%
Average travel time

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

32.6 min
Congestion ratio

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

21.4%
Drivers’ average age

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

46.2 yrs
Drivers’ average income

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

$96,011

Our data shows 10,296 vehicles per day on the average road in Hamilton County, Ohio, and 16,928,227 vehicle-miles traveled per day (≈6.2 billion per year) across its 1,238 miles of monitored roads. About 1 in 14 vehicles is a truck, fewer than the 1 in 10 across Ohio.

Busier roads than 98% of counties in Ohio

Hamilton's average daily traffic volume is 78% higher than the state average - 10,296 vehicles per day against 5,773 - suggesting more traffic load per road - heavy exposure for roadside retail, and tight road space for deliveries. Network-wide, Hamilton accounts for about 6.5% of Ohio's statewide total of vehicle-miles. By volume, Hamilton's 10,296 vehicles per day outpaces 98% of counties in Ohio.

The average trip takes 32.6 minutes, on par with the state level. On travel time, Hamilton runs shorter than 61% of counties in Ohio.

Congestion runs 30% higher than the state level, at a ratio of 21.4%, which means more pronounced congestion - a factor for delivery windows and signal timing.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Hamilton County, Ohio

Trafficvehicles per day31,028
Trucks9.7%
Average travel time39.2 min
Congestion ratio46.2%
Drivers’ average age46.1 yrs
Drivers’ average income$99,493

Travel in Hamilton County, Ohio splits roughly evenly, with about half of it (55% of vehicle-miles) on highways. The average highway carries 31,028 vehicles per day, 224% more than the average non-highway road in the same area, which carries 9,574 vehicles per day.

With 22% of the road miles (271 miles in 1,589 segments), highways punch above their length, carrying 9,308,674 vehicle-miles traveled per day (≈3.4 billion per year).

No more than 2 other counties in Ohio move more traffic on their highways.

Lower highway truck share than 94% of counties in Ohio

At 9.7%, highway truck share is 35% lower than the state average. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.

By truck concentration, highways here trail 94% of counties in Ohio. By raw truck volume, Hamilton carries more highway trucks than 83% of counties in Ohio.

non-highway traffic icon

Non-highway Traffic in Hamilton County, Ohio

Trafficvehicles per day9,574
Trucks4.0%
Average travel time32.4 min
Congestion ratio20.6%
Drivers’ average age46.2 yrs
Drivers’ average income$92,957

Travel in Hamilton County, Ohio splits roughly evenly, with about half of it (45% of vehicle-miles) on local roads. On the average non-highway road, that comes to 9,574 vehicles per day.

Spread over 967 miles and 45,609 segments, 78% of the road network, local roads carry a lighter load per mile: 7,619,552 vehicle-miles traveled per day (≈2.8 billion per year). Trucks make up 4.0% of non-highway traffic, about 1 in 25 vehicles.

Younger drivers than 92% of counties in Ohio

The concentration of trucks on non-highway roads is 59% lower than on highways.

Non-highway congestion (20.6%) runs 30% higher than the state average, pointing to slower local traffic flow.

Hamilton's average driver income is higher than 91% of counties in Ohio. The driver population here skews younger than 92% of counties in Ohio.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–8:00 AM and a long afternoon plateau from 3:00 PM to 7:00 PM, with volumes reaching approximately 70% higher than the daily average.
Weekend traffic:
Weekends are much quieter: volumes run about 28% 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 August–October, the busiest stretch, runs only +4% versus the annual average.
Lowest month:
January is the quietest month, with volumes -10% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

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

Hamilton County vs. Ohio Traffic Comparison

Hamilton County's biggest difference from the Ohio average is its average daily traffic per road, 78% above it. Its highway truck share, by contrast, is 35% below.

MetricHamilton CountyOhio averageDifference
Traffic10,2965,773+78.3%
Truck % (Total Traffic)7.1%9.9%-28.2%
Truck % (Highway)9.7%14.9%-34.9%
Avg. Travel Time32.6 min32.9 min-0.7%

How Hamilton County compares

Hamilton County moves more traffic than any nearby county

Set against the average of the 4 areas nearest to it, Hamilton County moves 4.3 times the total daily travel; it has the busiest roads of the five. Bigger and busier at once: more road than the areas around it and heavier traffic on it, which makes it the centre of gravity for travel in this part of the map.

Hamilton 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
Hamilton County10,2967.1%16,928,22732.6 min21.4%
Boone County, Kentucky9,04612.8%4,211,39230.0 min19.4%
Kenton County, Kentucky8,3288.6%3,453,89933.4 min19.0%
Campbell County, Kentucky7,0697.0%1,604,03031.0 min17.8%
Butler County, Ohio7,2415.3%6,365,33332.9 min16.6%
Ohio average5,7739.9%N/A32.9 min16.5%

Hamilton County ranked within Ohio

Hamilton County sits in Ohio's top three on average daily traffic volume and highway travel volume.

Hamilton County ranked among 88 county-level areas in Ohio (1 = highest); measures without data in every county rank a smaller field, down to 83.
MeasureHamilton CountyOhio rank
Traffic volume (AADT)10,296#3 of 88
Highway vehicle-miles per day9,308,674#3 of 83
Truck share on highways9.7%#78 of 83
Highway trucks per day3,010#15 of 83
Average travel time32.6 min#54 of 88
Average driver income$96,011#9 of 88
Average driver age46.2 yrs#81 of 88

Hamilton County ranks #3 of 83 on highway travel volume but #78 of 83 on truck share on highways. It carries some of the heaviest highway traffic in Ohio, but very little of it is freight - this is commuter and local car volume, not through-trucking.

Busiest roads in Hamilton County, Ohio

On their busiest stretches, the three busiest roads in Hamilton County carry 103,733 vehicles a day on average, 10.1 times the typical road in the county (10,296).

Mill Creek Expressway leads with 120,296 vehicles a day, 13,663 of them trucks (11.4%). It also carries the most trucks.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Mill Creek ExpresswayMotorway · 120,296vehicles13,663trucks · 11.4%
Road class
Motorway
Congestion ratio
79.5%
Median trip time
41.7 min
Drivers’ median age
45.2 yrs
Drivers’ average income
$91,562

Delays build on Mill Creek Expressway: its congestion ratio of 79% over free-flow time is well above the county's 21%.

2Northeast ExpresswayMotorway · 111,571vehicles8,902trucks · 8.0%
Road class
Motorway
Congestion ratio
64.9%
Median trip time
38.0 min
Drivers’ median age
45.5 yrs
Drivers’ average income
$109,780

Travel on Northeast Expressway's busiest stretch runs 65% over free-flow time, against 21% across the county, so expect slower peak hours.

3I 74Motorway · 79,332vehicles6,812trucks · 8.6%
Road class
Motorway
Median trip time
34.4 min
Drivers’ median age
44.8 yrs
Drivers’ average income
$78,262

At 7.7 times the county average, I 74 draws drivers from neighborhoods averaging $78,262 in household income.

4Cincinnati BypassMotorway · 76,627vehicles8,484trucks · 11.1%
Road class
Motorway
Congestion ratio
53.1%
Median trip time
40.1 min
Drivers’ median age
47.5 yrs
Drivers’ average income
$99,746

A main artery: Cincinnati Bypass's busiest stretch carries 7.4 times the county average; trucks are 11.1% of it, above the county-wide 7.1%.

5Norwood Lateral ExpresswayMotorway · 60,923vehicles4,380trucks · 7.2%
Road class
Motorway
Congestion ratio
64.6%
Median trip time
34.2 min
Drivers’ median age
45.7 yrs
Drivers’ average income
$83,676

Norwood Lateral Expressway is a trunk route for the county, carrying 5.9 times the county average on its busiest stretch; trucks are 7.2% of it, in line with the county-wide 7.1%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Mill Creek ExpresswayMotorway · #1 by traffic120,296vehicles13,663trucks · 11.4%
2Northeast ExpresswayMotorway · #2 by traffic111,571vehicles8,902trucks · 8.0%
3Cincinnati BypassMotorway · #4 by traffic76,627vehicles8,484trucks · 11.1%
4I 74Motorway · #3 by traffic79,332vehicles6,812trucks · 8.6%
5Norwood Lateral ExpresswayMotorway · #5 by traffic60,923vehicles4,380trucks · 7.2%
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

HamiltonDepartment 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 Hamilton County

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

Need segment-level traffic data?

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