Need segment-level traffic data?

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

Get insights →
Traffic heat map of Seneca County, Ohio: 449 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Market Street and Sandusky Street

Seneca County, Ohio Traffic Counts

TrafficZoom tracks traffic on 449 road miles in Seneca County, Ohio, divided into 5,782 segments averaging 410 ft. Its busiest road, Market Street, carries 12,736 vehicles a day, 4.5 times the average road. Built from cross-verified mobile and road-sensor data, these counts help you size up a retail site, plan logistics routes or assess infrastructure needs.
Data sourced from TrafficZoom's proprietary analytics platform.
Data current as of:
Q3 2026
Updated:
September 29, 2026
Find my place
total traffic icon

Total Traffic Volume & Performance in Seneca County, Ohio

Traffic

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

vehicles per day2,801
Trucks

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

7.9%
Average travel time

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

33.4 min
Congestion ratio

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

9.3%
Drivers’ average age

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

49.5 yrs
Drivers’ average income

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

$67,611

The average monitored road in Seneca County, Ohio carries 2,801 vehicles per day. Across its 449 miles of monitored roads, that adds up to 848,261 vehicle-miles traveled per day (≈310 million per year). About 1 in 13 vehicles is a truck, fewer than the 1 in 10 across Ohio.

Traffic 51% below the Ohio average

Seneca sees 51% lower average daily traffic volume than the state average (2,801 vehicles per day against 5,773), suggesting less demand on each road - quiet roads that suit freight movement more than drive-by retail. Network-wide, Seneca accounts for about 0.3% of Ohio's statewide total of vehicle-miles. 62% of counties in Ohio see more traffic than Seneca's 2,801 vehicles per day.

Journey times here (33.4 minutes on average) closely track the state level. On travel time, Seneca runs longer than 53% of counties in Ohio.

The congestion ratio of 9.3% is 43% lower, pointing to smoother traffic flow than the state level - fewer delays make delivery windows more reliable.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

In Seneca County, Ohio, the peak hour concentrates about 7% of the day's traffic.

Seneca County vs. Ohio Traffic Comparison

The average daily traffic per road sets Seneca County apart: 51% below the Ohio average. Its truck share is also 21% below.

MetricSeneca CountyOhio averageDifference
Traffic2,8015,773-51.5%
Truck % (Total Traffic)7.9%9.9%-20.6%
Avg. Travel Time33.4 min32.9 min+1.8%

How Seneca County compares

Seneca County has the lowest truck share of its nearby counties

Against the 4 nearest areas, Seneca County runs 8.9 percentage points less truck traffic; it has the third busiest roads of the five. The same kind of road, just less of it: traffic per road matches the areas around it while the network itself is smaller.

Seneca 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
Seneca County2,8017.9%848,26133.4 min9.3%
Wyandot County, Ohio2,43919.6%997,62333.7 min8.0%
Crawford County, Ohio2,51613.7%841,33236.6 min8.2%
Sandusky County, Ohio3,76517.5%2,117,59638.2 min10.7%
Hancock County, Ohio4,27316.5%2,615,23436.6 min13.1%
Ohio average5,7739.9%N/A32.9 min16.5%

Seneca County ranked within Ohio

Seneca County sits close to the Ohio median on every measure below - no single figure sets it apart from the state as a whole.

Seneca County ranked among 88 county-level areas in Ohio (1 = highest).
MeasureSeneca CountyOhio rank
Traffic volume (AADT)2,801#55 of 88
Average travel time33.4 min#42 of 88
Average driver income$67,611#55 of 88
Average driver age49.5 yrs#33 of 88

Busiest roads in Seneca County, Ohio

The three busiest roads in Seneca County average 10,829 vehicles a day, 3.9 times the county average of 2,801 across all its monitored roads.

Market Street is the busiest road, at 12,736 vehicles a day, 658 of them trucks (5.2%). Tiffin Street carries the most trucks, 823 a day (14.8% of its traffic), although it is not among the 5 busiest roads overall.

Freight stands out on Tiffin Street: trucks are 14.8% of the traffic there, against 7.9% county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Market StreetPrimary road · 12,736vehicles658trucks · 5.2%
Road class
Primary road
Congestion ratio
22.1%
Median trip time
32.2 min
Drivers’ median age
49.8 yrs
Drivers’ average income
$60,234

Market Street peaks at 12,736 vehicles a day, 4.5 times the county average; trucks are 5.2% of it, below the county-wide 7.9%.

2Sandusky StreetPrimary road · 10,442vehicles642trucks · 6.2%
Road class
Primary road
Congestion ratio
27.8%
Median trip time
40.9 min
Drivers’ median age
48.8 yrs
Drivers’ average income
$52,920

Delays build on Sandusky Street: its congestion ratio of 28% over free-flow time is well above the county's 9%.

3Midblock UnderpassPrimary road · 9,308vehicles655trucks · 7.0%
Road class
Primary road
Congestion ratio
6.5%
Median trip time
27.9 min
Drivers’ median age
49.5 yrs
Drivers’ average income
$59,532

Midblock Underpass carries 3.3 times the county average at its busiest, 655 of them trucks (7.0%, below the county-wide 7.9%).

4Washington StreetSecondary road · 8,890vehicles527trucks · 5.9%
Road class
Secondary road
Congestion ratio
29.2%
Median trip time
40.9 min
Drivers’ median age
47.9 yrs
Drivers’ average income
$59,089

Travel on Washington Street's busiest stretch runs 29% over free-flow time, against 9% across the county, so expect slower peak hours.

5Perry StreetPrimary road · 8,407vehicles519trucks · 6.2%
Road class
Primary road
Congestion ratio
20.0%
Median trip time
27.4 min
Drivers’ median age
49.3 yrs
Drivers’ average income
$59,089

Perry Street carries 3.0 times the county average on its busiest stretch, where the median trip lasts 27.4 minutes.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Tiffin StreetPrimary road · 5,572vehicles823trucks · 14.8%
Road class
Primary road
Congestion ratio
14.0%
Median trip time
33.2 min
Drivers’ median age
51.0 yrs
Drivers’ average income
$71,505

At 2.0 times the county average, Tiffin Street draws drivers from neighborhoods averaging $71,505 in household income.

2Market StreetPrimary road · #1 by traffic12,736vehicles658trucks · 5.2%
3Midblock UnderpassPrimary road · #3 by traffic9,308vehicles655trucks · 7.0%
4Sandusky StreetPrimary road · #2 by traffic10,442vehicles642trucks · 6.2%
5County Line StreetPrimary road · 7,546vehicles638trucks · 8.5%
Road class
Primary road
Congestion ratio
17.7%
Median trip time
26.8 min
Drivers’ median age
49.3 yrs
Drivers’ average income
$63,139

The busiest stretch of County Line Street carries 2.7 times the county average; trucks are 8.5% of it, above the county-wide 7.9%.

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

SenecaDepartment 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.
link arrow icon
Data current as of:
Q3 2026

Explore further

TrafficZoom platform

— street-level analytics and custom corridor reports.

Map AI

— demographics, housing and mobility data.

Counties near Seneca County

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

Need segment-level traffic data?

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