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Traffic heat map of Harrison County, Indiana: 251 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 64 and State Road 135

Harrison County, Indiana Traffic Counts

How busy are the roads of Harrison County, Indiana? We measure 251 road miles, divided into 3,485 segments, with multi-sourced, cross-verified mobile and sensor data. Its busiest road, I 64, carries 24,205 vehicles a day, 7.7 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 Volume & Performance in Harrison County, Indiana

Traffic

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

vehicles per day3,137
Trucks

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

13.5%
Average travel time

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

29.5 min
Congestion ratio

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

10.8%
Drivers’ average age

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

48.5 yrs
Drivers’ average income

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

$75,612

The average monitored road in Harrison County, Indiana carries 3,137 vehicles per day. Across its 251 miles of monitored roads, that adds up to 1,172,799 vehicle-miles traveled per day (≈428 million per year). Trucks are 13.5% of traffic, close to the 12.1% across Indiana.

Shorter trips than 98% of counties in Indiana

At 3,137 vehicles per day, the average monitored road in Harrison carries 45% less traffic than the state average of 5,704, suggesting less demand on each road - less drive-by exposure for retail, but easier access for deliveries. In total volume terms, its road network carries about 0.7% of Indiana's statewide total of vehicle-miles. Harrison carries less traffic than 66% of counties in Indiana.

At 29.5 minutes, the average travel time is 12% lower than the state level. Its average travel time of 29.5 minutes is shorter than 98% of counties in Indiana.

The congestion ratio of 10.8% is 31% lower, pointing to smoother traffic flow than the state level - travel times are easy to plan around for scheduled deliveries.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Harrison County, Indiana

Trafficvehicles per day7,435
Trucks16.6%
Average travel time39.6 min
Congestion ratio17.4%
Drivers’ average age48.1 yrs
Drivers’ average income$73,382

A little more than half of the driving in Harrison County, Indiana happens on highways: 66% of all vehicle-miles. The average highway carries 7,435 vehicles per day, 171% more than the average non-highway road in the same area, which carries 2,739 vehicles per day.

With 29% of the road miles (72 miles in 295 segments), highways punch above their length, carrying 771,622 vehicle-miles traveled per day (≈282 million per year).

That is more highway travel volume than 60% of counties in Indiana.

Lower highway truck share than 69% of counties in Indiana

The concentration of trucks on highways (16.6%) is 15% lower than the state average for similar road classifications. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.

By truck concentration, highways here trail 69% of counties in Indiana. By raw truck volume, Harrison carries fewer highway trucks than 63% of counties in Indiana.

non-highway traffic icon

Non-highway Traffic in Harrison County, Indiana

Trafficvehicles per day2,739
Trucks7.4%
Average travel time28.5 min
Congestion ratio10.2%
Drivers’ average age48.7 yrs
Drivers’ average income$77,508

Local roads carry a significant share of travel in Harrison County, Indiana: 34% of all vehicle-miles. On the average non-highway road, that comes to 2,739 vehicles per day.

Spread over 179 miles and 3,190 segments, 71% of the road network, local roads carry a lighter load per mile: 401,177 vehicle-miles traveled per day (≈146 million per year). The truck share on non-highway roads is 7.4%.

Local congestion 33% below the Indiana average

The concentration of trucks on non-highway roads is 55% lower than on highways.

At 33% lower than the state level, the non-highway congestion ratio of 10.2% signals easier movement on local roads.

Trip origins here have higher average income than 55% of counties in Indiana. The driver population here skews older than 60% of counties in Indiana.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

In Harrison County, Indiana, the peak hour concentrates about 8% of the day's traffic.

Harrison County vs. Indiana Traffic Comparison

The average daily traffic per road sets Harrison County apart: 45% below the Indiana average. Its highway truck share is also 15% below.

MetricHarrison CountyIndiana averageDifference
Traffic3,1375,704-45.0%
Truck % (Total Traffic)13.5%12.1%+11.2%
Truck % (Highway)16.6%19.6%-15.3%
Avg. Travel Time29.5 min33.5 min-12.1%

How Harrison County compares

Harrison County against nearby counties

Set against the average of the 4 areas nearest to it, Harrison County carries 36.1% less traffic on a typical road and is 23.2% less congested; it has the third busiest roads of the five. Less traffic and more room for it - the roads here run both quieter and freer than the areas around them.

Harrison County and the 4 nearest county-level areas by centroid distance, with the Indiana average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Harrison County3,13713.5%1,172,79929.5 min10.8%
Floyd County, Indiana8,2167.9%1,537,60929.6 min23.5%
Crawford County, Indiana2,21917.6%589,59634.5 min6.8%
Meade County, Kentucky2,8848.2%635,37428.7 min8.2%
Clark County, Indiana6,30911.6%2,682,14732.0 min17.7%
Indiana average5,70412.1%N/A33.5 min15.6%

Harrison County ranked within Indiana

Average travel time places Harrison County #90 of 92 in Indiana - the bottom quarter of the state.

Harrison County ranked among 92 county-level areas in Indiana (1 = highest); measures without data in every county rank a smaller field, down to 79.
MeasureHarrison CountyIndiana rank
Traffic volume (AADT)3,137#61 of 92
Highway vehicle-miles per day771,622#32 of 79
Truck share on highways16.6%#55 of 79
Highway trucks per day1,233#50 of 79
Average travel time29.5 min#90 of 92
Average driver income$75,612#42 of 92
Average driver age48.5 yrs#37 of 92

Busiest roads in Harrison County, Indiana

Traffic concentrates on a few corridors: the three busiest roads average 17,664 vehicles a day, against 3,137 on the average road in Harrison County.

I 64 leads with 24,205 vehicles a day, 4,525 of them trucks (18.7%). No other road comes close: State Road 135, in second place, carries 15,736. It also carries the most trucks.

Trips using I 64 are long: a median of 50.1 minutes against 29.5 county-wide, the mark of a through route.

Few trucks use Capitol Avenue: 4.6% of its traffic, under half the county's 13.5%.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 64Motorway · 24,205vehicles4,525trucks · 18.7%
Road class
Motorway
Congestion ratio
27.6%
Median trip time
50.1 min
Drivers’ median age
47.9 yrs
Drivers’ average income
$72,510

Travel on I 64's busiest stretch runs 28% over free-flow time, against 11% across the county, so expect slower peak hours.

2State Road 135Trunk road · 15,736vehicles1,232trucks · 7.8%
Road class
Trunk road
Congestion ratio
17.0%
Median trip time
32.5 min
Drivers’ median age
47.9 yrs
Drivers’ average income
$72,853

State Road 135 is a trunk route for the county, carrying 5.0 times the county average on its busiest stretch; trucks are 7.8% of it, below the county-wide 13.5%.

3Capitol AvenuePrimary road · 13,052vehicles597trucks · 4.6%
Road class
Primary road
Congestion ratio
30.9%
Median trip time
25.9 min
Drivers’ median age
49.2 yrs
Drivers’ average income
$74,624

Capitol Avenue is one of the more congested roads here: trips take 31% longer than at free-flow speed, against 11% county-wide.

4SR 135Primary road · 7,075vehicles492trucks · 7.0%
Road class
Primary road
Congestion ratio
18.7%
Median trip time
32.2 min
Drivers’ median age
48.7 yrs
Drivers’ average income
$77,076

SR 135 carries 2.3 times the county average at its busiest, 492 of them trucks (7.0%, below the county-wide 13.5%).

5US 150Trunk road · 6,748vehicles672trucks · 10.0%
Road class
Trunk road
Congestion ratio
15.5%
Median trip time
32.9 min
Drivers’ median age
47.9 yrs
Drivers’ average income
$73,823

US 150 carries 2.2 times the county average on its busiest stretch, where the median trip lasts 32.9 minutes.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 64Motorway · #1 by traffic24,205vehicles4,525trucks · 18.7%
2State Road 135Trunk road · #2 by traffic15,736vehicles1,232trucks · 7.8%
3US 150Trunk road · #5 by traffic6,748vehicles672trucks · 10.0%
4Capitol AvenuePrimary road · #3 by traffic13,052vehicles597trucks · 4.6%
5SR 135Primary road · #4 by traffic7,075vehicles492trucks · 7.0%
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

HarrisonDepartment 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 Harrison County

The same traffic breakdown for the areas closest to Harrison County, Indiana.

Need segment-level traffic data?

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