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Traffic heat map of Indiana County, Pennsylvania: 547 miles of roads shaded from blue (light) to red (heavy traffic), busiest on William Penn Highway

Indiana County, Pennsylvania Traffic Counts

Trips here are the longest of any county in Pennsylvania, a median 43.1 minutes. This page breaks down traffic in Indiana County, Pennsylvania across 547 miles of monitored roads split into 5,242 segments, using multi-sourced mobile and sensor data. It goes beyond raw counts to truck flow, congestion and who is driving, so site selection and route planning rest on evidence.
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 Indiana County, Pennsylvania

Traffic

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

vehicles per day3,325
Trucks

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

10.0%
Average travel time

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

43.1 min
Congestion ratio

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

12.2%
Drivers’ average age

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

47.7 yrs
Drivers’ average income

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

$61,735

The average monitored road in Indiana County, Pennsylvania carries 3,325 vehicles per day. Across its 547 miles of monitored roads, that adds up to 1,560,678 vehicle-miles traveled per day (≈570 million per year). About 1 in 10 vehicles is a truck, in line with Pennsylvania (10.6%).

The longest trips of any county in Pennsylvania

At 3,325 vehicles per day, the average monitored road in Indiana carries 41% less traffic than the state average of 5,617, 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 Pennsylvania's statewide total of vehicle-miles. Indiana carries less traffic than 62% of counties in Pennsylvania.

Journey times run 24% higher than the state level, at 43.1 minutes on average. It also posts the highest average travel time in Pennsylvania, at 43.1 minutes.

The congestion ratio of 12.2% is 26% 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 Indiana County, Pennsylvania

Trafficvehicles per day5,994
Trucks12.1%
Average travel time49.9 min
Congestion ratio14.5%
Drivers’ average age49.6 yrs
Drivers’ average income$63,182

Highways carry more than half of all travel in Indiana County, Pennsylvania (59% of vehicle-miles). The average highway carries 5,994 vehicles per day, 127% more than the average non-highway road in the same area, which carries 2,644 vehicles per day.

With 31% of the road miles (169 miles in 1,066 segments), highways punch above their length, carrying 927,713 vehicle-miles traveled per day (≈339 million per year).

Fewer highway trucks than 89% of counties in Pennsylvania

Highway truck concentration here runs 23% lower than the state average, at 12.1%. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.

75% of counties in Pennsylvania see a higher highway truck share than Indiana's 12.1%. Indiana's highway truck count is lower than 89% of counties in Pennsylvania, at roughly 723 trucks per day.

non-highway traffic icon

Non-highway Traffic in Indiana County, Pennsylvania

Trafficvehicles per day2,644
Trucks6.9%
Average travel time41.3 min
Congestion ratio11.7%
Drivers’ average age45.8 yrs
Drivers’ average income$60,454

A significant share of driving in Indiana County, Pennsylvania, 41% of vehicle-miles, happens on local roads. On the average non-highway road, that comes to 2,644 vehicles per day.

Local roads make up 69% of the monitored road miles (379 miles in 4,176 segments) but carry less than their share of travel: 632,966 vehicle-miles traveled per day (≈231 million per year). About 1 in 15 vehicles on non-highway roads is a truck (6.9%).

Younger drivers than 88% of counties in Pennsylvania

Non-highway roads carry a truck concentration that's 43% lower than the highway network.

Non-highway congestion (11.7%) runs 26% lower than the state average, pointing to smoother local traffic flow.

85% of counties in Pennsylvania see higher average driver income among trip origins than Indiana. 88% of counties in Pennsylvania have an older driver population than Indiana.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–8:00 AM and PM peak 4:00 PM–6:00 PM, with volumes reaching approximately 70% higher than the daily average.
Weekend traffic:
Weekends are much quieter: volumes run about 22% below weekday levels, the signature of a commute-driven road network.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
August–October is the high season, with volumes +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 Indiana County, Pennsylvania, the peak hour concentrates about 7% of the day's traffic, and there is a noticeable seasonal swing of +4% in high season.

Indiana County vs. Pennsylvania Traffic Comparison

Of the four measures, average daily traffic per road differs most: Indiana County runs 41% below the Pennsylvania average. Its average travel time, by contrast, is 24% above.

MetricIndiana CountyPennsylvania averageDifference
Traffic3,3255,617-40.8%
Truck % (Total Traffic)10.0%10.6%-6.4%
Truck % (Highway)12.1%15.8%-23.4%
Avg. Travel Time43.1 min34.6 min+24.4%

How Indiana County compares

Trips in Indiana County run longer than in any nearby county

Compared with its 4 closest neighbours, Indiana County sees 33.3% longer typical trips; 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.

Indiana County and the 4 nearest county-level areas by centroid distance, with the Pennsylvania average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Indiana County3,32510.0%1,560,67843.1 min12.2%
Cambria County, Pennsylvania3,6358.2%2,043,25031.8 min10.4%
Armstrong County, Pennsylvania3,0179.2%1,075,36133.2 min9.5%
Westmoreland County, Pennsylvania4,84910.9%6,929,21231.4 min13.8%
Jefferson County, Pennsylvania2,94622.4%1,162,77532.9 min9.9%
Pennsylvania average5,61710.6%N/A34.6 min16.5%

Indiana County ranked within Pennsylvania

No other county-level area in Pennsylvania records a higher average travel time than Indiana County.

Indiana County ranked among 67 county-level areas in Pennsylvania (1 = highest); measures without data in every county rank a smaller field, down to 64.
MeasureIndiana CountyPennsylvania rank
Traffic volume (AADT)3,325#42 of 67
Highway vehicle-miles per day927,713#35 of 64
Truck share on highways12.1%#48 of 64
Highway trucks per day723#57 of 64
Average travel time43.1 min#1 of 67
Average driver income$61,735#57 of 67
Average driver age47.7 yrs#59 of 67

Indiana County ranks #1 of 67 on average travel time but #57 of 64 on highway truck volume - the two describe the same roads and are worth reading together rather than either on its own.

Busiest roads in Indiana County, Pennsylvania

The three busiest roads in Indiana County average 14,986 vehicles a day, 4.5 times the county average of 3,325 across all its monitored roads.

William Penn Highway leads with 15,655 vehicles a day, 2,024 of them trucks (12.9%). It also carries the most trucks.

Trips using William Penn Highway are long: a median of 56.7 minutes against 43.1 county-wide, the mark of a through route.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1William Penn HighwayTrunk road · 15,655vehicles2,024trucks · 12.9%
Road class
Trunk road
Congestion ratio
19.1%
Median trip time
56.7 min
Drivers’ median age
51.6 yrs
Drivers’ average income
$63,402

At 4.7 times the county average, William Penn Highway draws drivers from neighborhoods averaging $63,402 in household income.

2Oakland AvenuePrimary road · 14,974vehicles816trucks · 5.5%
Road class
Primary road
Congestion ratio
38.0%
Median trip time
46.5 min
Drivers’ median age
45.6 yrs
Drivers’ average income
$48,769

Travel on Oakland Avenue's busiest stretch runs 38% over free-flow time, against 12% across the county, so expect slower peak hours.

3US 119Trunk road · 14,330vehicles1,586trucks · 11.1%
Road class
Trunk road
Congestion ratio
16.2%
Median trip time
40.2 min
Drivers’ median age
46.6 yrs
Drivers’ average income
$63,524

The busiest stretch of US 119 carries 4.3 times the county average; trucks are 11.1% of it, above the county-wide 10.0%.

4Benjamin Franklin HighwayTrunk road · 12,698vehicles1,272trucks · 10.0%
Road class
Trunk road
Congestion ratio
35.1%
Median trip time
45.8 min
Drivers’ median age
48.1 yrs
Drivers’ average income
$72,377

Benjamin Franklin Highway is one of the more congested roads here: trips take 35% longer than at free-flow speed, against 12% county-wide.

5US 422Trunk road · 12,221vehicles1,080trucks · 8.8%
Road class
Trunk road
Congestion ratio
29.5%
Median trip time
44.9 min
Drivers’ median age
47.9 yrs
Drivers’ average income
$70,863

On its busiest stretch, US 422 carries 3.7 times the county average; trucks are 8.8% of it, below the county-wide 10.0%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1William Penn HighwayTrunk road · #1 by traffic15,655vehicles2,024trucks · 12.9%
2US 119Trunk road · #3 by traffic14,330vehicles1,586trucks · 11.1%
3Buffalo Pittsburg HighwayTrunk road · 11,046vehicles1,375trucks · 12.4%
Road class
Trunk road
Congestion ratio
13.3%
Median trip time
45.5 min
Drivers’ median age
46.8 yrs
Drivers’ average income
$63,112

Buffalo Pittsburg Highway peaks at 11,046 vehicles a day, 3.3 times the county average; trucks are 12.4% of it, above the county-wide 10.0%.

4Benjamin Franklin HighwayTrunk road · #4 by traffic12,698vehicles1,272trucks · 10.0%
5Buffalo-Pittsburgh HighwayMotorway · 10,386vehicles1,217trucks · 11.7%
Road class
Motorway
Congestion ratio
13.1%
Median trip time
39.8 min
Drivers’ median age
47.9 yrs
Drivers’ average income
$63,762

Buffalo-Pittsburgh Highway carries 3.1 times the county average at its busiest, 1,217 of them trucks (11.7%, above the county-wide 10.0%).

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

IndianaDepartment 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 Indiana County

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

Need segment-level traffic data?

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