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Traffic heat map of Armstrong County, Pennsylvania: 361 miles of roads shaded from blue (light) to red (heavy traffic), busiest on PA 66 and US 422

Armstrong County, Pennsylvania Traffic Counts

Our Armstrong County, Pennsylvania traffic data covers 5,232 road segments over 361 road miles, with an average segment of just 364 ft. Its busiest road, PA 66, carries 15,307 vehicles a day, 5.1 times the average road. 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 Armstrong County, Pennsylvania

Traffic

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

vehicles per day3,017
Trucks

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

9.2%
Average travel time

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

33.2 min
Congestion ratio

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

9.5%
Drivers’ average age

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

52.1 yrs
Drivers’ average income

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

$68,410

A typical monitored road in Armstrong County, Pennsylvania sees 3,017 vehicles per day, while its 361 miles of monitored roads together handle 1,075,361 vehicle-miles traveled per day (≈393 million per year). Trucks are 9.2% of traffic, close to the 10.6% across Pennsylvania.

Traffic 46% below the Pennsylvania average

Armstrong sees 46% lower average daily traffic volume than the state average (3,017 vehicles per day against 5,617), suggesting less demand on each road - lighter roads for freight, but less passing trade for roadside retail. In total volume terms, its road network carries about 0.5% of Pennsylvania's statewide total of vehicle-miles. 68% of counties in Pennsylvania see more traffic than Armstrong's 3,017 vehicles per day.

Journey times here (33.2 minutes on average) closely track the state level. Its average travel time of 33.2 minutes is shorter than 58% of counties in Pennsylvania.

At 43% lower than the state level, the 9.5% congestion ratio signals smoother traffic flow - fewer delays make delivery windows more reliable.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Armstrong County, Pennsylvania

Trafficvehicles per day8,001
Trucks11.2%
Average travel time40.0 min
Congestion ratio17.9%
Drivers’ average age51.4 yrs
Drivers’ average income$71,739

Highways carry a significant share of travel in Armstrong County, Pennsylvania: 42% of all vehicle-miles. The average highway carries 8,001 vehicles per day, 223% more than the average non-highway road in the same area, which carries 2,480 vehicles per day.

Highways make up 18% of the monitored road miles (64 miles, 509 segments), so they carry more than their share: 451,022 vehicle-miles traveled per day (≈165 million per year).

Fewer highway trucks than 86% of counties in Pennsylvania

The concentration of trucks on highways (11.2%) is 29% 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.

83% of counties in Pennsylvania see a higher highway truck share than Armstrong's 11.2%. By raw truck volume, Armstrong carries fewer highway trucks than 86% of counties in Pennsylvania.

non-highway traffic icon

Non-highway Traffic in Armstrong County, Pennsylvania

Trafficvehicles per day2,480
Trucks7.7%
Average travel time32.5 min
Congestion ratio8.6%
Drivers’ average age52.8 yrs
Drivers’ average income$66,216

A little more than half of the driving in Armstrong County, Pennsylvania happens on local roads: 58% of all vehicle-miles. On the average non-highway road, that comes to 2,480 vehicles per day.

Spread over 296 miles and 4,723 segments, 82% of the road network, local roads carry a lighter load per mile: 624,339 vehicle-miles traveled per day (≈228 million per year). About 1 in 13 vehicles on non-highway roads is a truck (7.7%).

Older drivers than 73% of counties in Pennsylvania

The concentration of trucks on non-highway roads is 31% lower than on highways.

At 46% lower than the state level, the non-highway congestion ratio of 8.6% signals easier movement on local roads.

Trip origins here have lower average income than 59% of counties in Pennsylvania. Armstrong's median driver age is higher than 73% of counties in Pennsylvania.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

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

Armstrong County vs. Pennsylvania Traffic Comparison

Armstrong County's biggest difference from the Pennsylvania average is its average daily traffic per road, 46% below it. Its highway truck share is also 29% below.

MetricArmstrong CountyPennsylvania averageDifference
Traffic3,0175,617-46.3%
Truck % (Total Traffic)9.2%10.6%-14.0%
Truck % (Highway)11.2%15.8%-29.1%
Avg. Travel Time33.2 min34.6 min-4.0%

How Armstrong County compares

Armstrong County against nearby counties

Compared with its 4 closest neighbours, Armstrong County runs 6.9 percentage points less truck traffic; it has the third busiest roads of the five.

Armstrong 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
Armstrong County3,0179.2%1,075,36133.2 min9.5%
Indiana County, Pennsylvania3,32510.0%1,560,67843.1 min12.2%
Butler County, Pennsylvania5,7828.4%3,962,33532.7 min15.4%
Clarion County, Pennsylvania2,89523.6%1,144,56031.9 min8.8%
Jefferson County, Pennsylvania2,94622.4%1,162,77532.9 min9.9%
Pennsylvania average5,61710.6%N/A34.6 min16.5%

Armstrong County ranked within Pennsylvania

Highway truck volume places Armstrong County #55 of 64 in Pennsylvania - the bottom quarter of the state.

Armstrong County ranked among 67 county-level areas in Pennsylvania (1 = highest); measures without data in every county rank a smaller field, down to 64.
MeasureArmstrong CountyPennsylvania rank
Traffic volume (AADT)3,017#46 of 67
Highway vehicle-miles per day451,022#51 of 64
Truck share on highways11.2%#53 of 64
Highway trucks per day893#55 of 64
Average travel time33.2 min#39 of 67
Average driver income$68,410#40 of 67
Average driver age52.1 yrs#19 of 67

Busiest roads in Armstrong County, Pennsylvania

On their busiest stretches, the three busiest roads in Armstrong County carry 14,090 vehicles a day on average, 4.7 times the typical road in the county (3,017).

PA 66 leads with 15,307 vehicles a day, 1,171 of them trucks (7.7%). US 422 carries the most trucks, 1,810 a day (12.6% of its traffic), although it ranks #2 for all traffic.

Allegheny Valley Expressway carries longer journeys than most roads here, with a median trip of 44.6 minutes against 33.2 county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1PA 66Trunk road · 15,307vehicles1,171trucks · 7.7%
Road class
Trunk road
Congestion ratio
19.2%
Median trip time
29.0 min
Drivers’ median age
53.1 yrs
Drivers’ average income
$64,713

A main artery: PA 66's busiest stretch carries 5.1 times the county average; trucks are 7.7% of it, below the county-wide 9.2%.

2US 422Motorway · 14,397vehicles1,810trucks · 12.6%
Road class
Motorway
Congestion ratio
19.8%
Median trip time
43.0 min
Drivers’ median age
51.1 yrs
Drivers’ average income
$70,032

US 422 carries 4.8 times the county average at its busiest, 1,810 of them trucks (12.6%, above the county-wide 9.2%).

3Allegheny Valley ExpresswayMotorway · 12,565vehicles1,514trucks · 12.1%
Road class
Motorway
Congestion ratio
13.8%
Median trip time
44.6 min
Drivers’ median age
51.8 yrs
Drivers’ average income
$75,177

Allegheny Valley Expressway carries 4.2 times the county average on its busiest stretch, where the median trip lasts 44.6 minutes.

4Water StreetPrimary road · 12,252vehicles859trucks · 7.0%
Road class
Primary road
Congestion ratio
28.6%
Median trip time
33.7 min
Drivers’ median age
53.2 yrs
Drivers’ average income
$63,969

Water Street is one of the more congested roads here: trips take 29% longer than at free-flow speed, against 9% county-wide.

5Butler RoadPrimary road · 12,124vehicles860trucks · 7.1%
Road class
Primary road
Congestion ratio
28.7%
Median trip time
30.1 min
Drivers’ median age
53.2 yrs
Drivers’ average income
$68,138

Delays build on Butler Road: its congestion ratio of 29% over free-flow time is well above the county's 9%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1US 422Motorway · #2 by traffic14,397vehicles1,810trucks · 12.6%
2Allegheny Valley ExpresswayMotorway · #3 by traffic12,565vehicles1,514trucks · 12.1%
3Benjamin Franklin HighwayTrunk road · 11,395vehicles1,436trucks · 12.6%
Road class
Trunk road
Congestion ratio
13.4%
Median trip time
42.8 min
Drivers’ median age
52.7 yrs
Drivers’ average income
$69,513

At 3.8 times the county average, Benjamin Franklin Highway draws drivers from neighborhoods averaging $69,513 in household income.

4PA 66Trunk road · #1 by traffic15,307vehicles1,171trucks · 7.7%
5PA 56 / PA 66Primary road · 9,267vehicles1,058trucks · 11.4%
Road class
Primary road
Congestion ratio
20.5%
Median trip time
33.6 min
Drivers’ median age
52.9 yrs
Drivers’ average income
$63,384

The busiest stretch of PA 56 / PA 66 carries 3.1 times the county average; trucks are 11.4% of it, above the county-wide 9.2%.

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

ArmstrongDepartment 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 Armstrong County

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

Need segment-level traffic data?

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