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Traffic heat map of Clark County, Ohio: 479 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 70 and I 675

Clark County, Ohio Traffic Counts

Our Clark County, Ohio traffic data covers 10,030 road segments over 479 road miles, with an average segment of just 252 ft. Trips here are among the 3 longest of any county in Ohio. Whether you are evaluating a new retail location, planning routes or assessing infrastructure, these numbers replace guesswork.
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 Clark County, Ohio

Traffic

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

vehicles per day5,742
Trucks

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

14.0%
Average travel time

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

40.0 min
Congestion ratio

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

15.4%
Drivers’ average age

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

48.7 yrs
Drivers’ average income

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

$70,671

The average monitored road in Clark County, Ohio carries 5,742 vehicles per day. Across its 479 miles of monitored roads, that adds up to 3,383,186 vehicle-miles traveled per day (≈1.2 billion per year). Trucks are 14.0% of traffic, more than the 9.9% across Ohio.

Longer trips than 99% of counties in Ohio

At 5,742 vehicles per day, the average road in Clark tracks closely with the state average of 5,773 vehicles per day. In total volume terms, its road network carries about 1.3% of Ohio's statewide total of vehicle-miles. 82% of counties in Ohio see less traffic than Clark's 5,742 vehicles per day.

The average trip takes 40.0 minutes, 22% higher than the state level. Its average travel time of 40.0 minutes is longer than 99% of counties in Ohio.

Congestion is somewhat lower than the state level, at a ratio of 15.4% (6% lower).

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Clark County, Ohio

Trafficvehicles per day13,459
Trucks20.9%
Average travel time53.2 min
Congestion ratio22.2%
Drivers’ average age47.4 yrs
Drivers’ average income$81,331

Highways carry more than half of all travel in Clark County, Ohio (58% of vehicle-miles). The average highway carries 13,459 vehicles per day, 149% more than the average non-highway road in the same area, which carries 5,405 vehicles per day.

With 23% of the road miles (108 miles in 419 segments), highways punch above their length, carrying 1,965,539 vehicle-miles traveled per day (≈717 million per year).

That is more highway travel volume than 78% of counties in Ohio.

More highway trucks than 87% of counties in Ohio

At 20.9%, highway truck share is 40% higher than the state average. Highways here lean toward freight, so highway access is a real asset for logistics operators.

70% of counties in Ohio see a lower highway truck share than Clark's 20.9%. Clark's highway truck count is higher than 87% of counties in Ohio, at roughly 2,816 trucks per day.

non-highway traffic icon

Non-highway Traffic in Clark County, Ohio

Trafficvehicles per day5,405
Trucks4.3%
Average travel time39.5 min
Congestion ratio15.1%
Drivers’ average age49.4 yrs
Drivers’ average income$65,612

A significant share of driving in Clark County, Ohio, 42% of vehicle-miles, happens on local roads. On the average non-highway road, that comes to 5,405 vehicles per day.

Local roads make up 77% of the monitored road miles (371 miles in 9,611 segments) but carry less than their share of travel: 1,417,648 vehicle-miles traveled per day (≈517 million per year). Trucks make up 4.3% of non-highway traffic, about 1 in 23 vehicles.

Local roads carry 79% fewer trucks by share than highways

Compared to highways, non-highway routes see 79% fewer trucks by share.

At 15.1%, the non-highway congestion ratio matches the state level closely.

57% of counties in Ohio see higher average driver income among trip origins than Clark. 57% of counties in Ohio have an older driver population than Clark.

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 68% higher than the daily average.
Weekend traffic:
Weekends are much quieter: volumes run about 21% below weekday levels, the signature of a commute-driven road network.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
May–July is the high season, with volumes +10% 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 Clark County, Ohio, the peak hour concentrates about 7% of the day's traffic, and there is a strong seasonal swing of +10% in high season.

Clark County vs. Ohio Traffic Comparison

Clark County's biggest difference from the Ohio average is its truck share, 41% above it. Its highway truck share is also 40% above.

MetricClark CountyOhio averageDifference
Traffic5,7425,773-0.5%
Truck % (Total Traffic)14.0%9.9%+40.9%
Truck % (Highway)20.9%14.9%+40.5%
Avg. Travel Time40.0 min32.9 min+21.9%

How Clark County compares

Clark County has the busiest roads among its nearby counties

Compared with its 4 closest neighbours, Clark County carries 67.0% more traffic on a typical road and is 31.1% 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.

Clark 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
Clark County5,74214.0%3,383,18640.0 min15.4%
Champaign County, Ohio2,3657.7%789,29433.4 min10.1%
Madison County, Ohio3,14218.5%2,240,58732.7 min10.6%
Greene County, Ohio4,5107.2%4,044,16732.6 min13.6%
Miami County, Ohio3,73611.6%2,543,51234.8 min12.7%
Ohio average5,7739.9%N/A32.9 min16.5%

Clark County ranked within Ohio

Clark County sits in Ohio's top three on average travel time.

Clark County ranked among 88 county-level areas in Ohio (1 = highest); measures without data in every county rank a smaller field, down to 83.
MeasureClark CountyOhio rank
Traffic volume (AADT)5,742#17 of 88
Highway vehicle-miles per day1,965,539#19 of 83
Truck share on highways20.9%#26 of 83
Highway trucks per day2,816#12 of 83
Average travel time40.0 min#2 of 88
Average driver income$70,671#51 of 88
Average driver age48.7 yrs#51 of 88

Busiest roads in Clark County, Ohio

Traffic concentrates on a few corridors: the three busiest roads average 43,495 vehicles a day, against 5,742 on the average road in Clark County.

I 70 leads with 61,666 vehicles a day, 12,990 of them trucks (21.1%). No other road comes close: I 675, in second place, carries 35,266. It tops the truck ranking too, with the most trucks.

Few trucks use Bechtle Avenue: 3.5% of its traffic, under half the county's 14.0%.

Trips using Bechtle Avenue are long: a median of 53.9 minutes against 40.0 county-wide, the mark of a through route.

Drivers on Bechtle Avenue come from neighborhoods with an average household income of $51,463, 27% below the county average of $70,671.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 70Motorway · 61,666vehicles12,990trucks · 21.1%
Road class
Motorway
Congestion ratio
44.9%
Median trip time
52.0 min
Drivers’ median age
48.0 yrs
Drivers’ average income
$81,720

Delays build on I 70: its congestion ratio of 45% over free-flow time is well above the county's 15%.

2I 675Motorway · 35,266vehicles3,399trucks · 9.6%
Road class
Motorway
Congestion ratio
35.2%
Median trip time
39.6 min
Drivers’ median age
47.8 yrs
Drivers’ average income
$85,166

At 6.1 times the county average, I 675 draws drivers from neighborhoods averaging $85,166 in household income.

3Bechtle AvenueTertiary road · 33,553vehicles1,175trucks · 3.5%
Road class
Tertiary road
Congestion ratio
81.6%
Median trip time
53.9 min
Drivers’ median age
49.1 yrs
Drivers’ average income
$51,463

Travel on Bechtle Avenue's busiest stretch runs 82% over free-flow time, against 15% across the county, so expect slower peak hours.

4Main StreetTrunk road · 26,641vehicles1,588trucks · 6.0%
Road class
Trunk road
Congestion ratio
28.8%
Median trip time
38.7 min
Drivers’ median age
48.1 yrs
Drivers’ average income
$71,567

On its busiest stretch, Main Street carries 4.6 times the county average; trucks are 6.0% of it, below the county-wide 14.0%.

5SR 4Motorway · 19,724vehicles2,215trucks · 11.2%
Road class
Motorway
Congestion ratio
23.9%
Median trip time
43.4 min
Drivers’ median age
47.7 yrs
Drivers’ average income
$74,171

SR 4 peaks at 19,724 vehicles a day, 3.4 times the county average; trucks are 11.2% of it, below the county-wide 14.0%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 70Motorway · #1 by traffic61,666vehicles12,990trucks · 21.1%
2I 675Motorway · #2 by traffic35,266vehicles3,399trucks · 9.6%
3SR 4Motorway · #5 by traffic19,724vehicles2,215trucks · 11.2%
4US Route 68Motorway · 14,670vehicles1,782trucks · 12.2%
Road class
Motorway
Congestion ratio
15.3%
Median trip time
38.6 min
Drivers’ median age
50.0 yrs
Drivers’ average income
$76,952

US Route 68 carries 2.6 times the county average at its busiest, 1,782 of them trucks (12.2%, below the county-wide 14.0%).

5Main StreetTrunk road · #4 by traffic26,641vehicles1,588trucks · 6.0%
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

ClarkDepartment 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 Clark County

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

Need segment-level traffic data?

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