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Traffic heat map of Blair County, Pennsylvania: 561 miles of roads shaded from blue (light) to red (heavy traffic)

Blair County, Pennsylvania Traffic Counts

Our Blair County, Pennsylvania traffic data covers 7,683 road segments over 561 road miles, with an average segment of just 386 ft. The average monitored road here carries 4,469 vehicles a day. 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 icon

Total Traffic Volume & Performance in Blair County, Pennsylvania

Traffic

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

vehicles per day4,469
Trucks

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

9.3%
Average travel time

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

32.9 min
Congestion ratio

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

13.7%
Drivers’ average age

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

50.5 yrs
Drivers’ average income

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

$65,974

A typical monitored road in Blair County, Pennsylvania sees 4,469 vehicles per day, while its 561 miles of monitored roads together handle 2,446,932 vehicle-miles traveled per day (≈893 million per year). About 1 in 11 vehicles is a truck, in line with Pennsylvania (10.6%).

Busier roads than 68% of counties in Pennsylvania

Blair sees 20% lower average daily traffic volume than the state average (4,469 vehicles per day against 5,617), suggesting less demand on each road - a factor worth weighing in site selection and logistics planning. Across the whole network, that travel is about 1.1% of Pennsylvania's statewide total. 68% of counties in Pennsylvania see less traffic than Blair's 4,469 vehicles per day.

The average trip takes 32.9 minutes, on par with the state level. Its average travel time of 32.9 minutes is shorter than 67% of counties in Pennsylvania.

At 17% lower than the state level, the 13.7% congestion ratio signals smoother traffic flow - crucial for traffic control improvement and logistics planning.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Blair County, Pennsylvania

Trafficvehicles per day7,765
Trucks14.0%
Average travel time41.4 min
Congestion ratio18.5%
Drivers’ average age50.8 yrs
Drivers’ average income$67,164

A significant share of driving in Blair County, Pennsylvania, 45% of vehicle-miles, happens on highways. The average highway carries 7,765 vehicles per day, 87% more than the average non-highway road in the same area, which carries 4,159 vehicles per day.

With 23% of the road miles (127 miles in 661 segments), highways punch above their length, carrying 1,099,321 vehicle-miles traveled per day (≈401 million per year).

52% of counties in Pennsylvania move less traffic on their highways.

Fewer highway trucks than 76% of counties in Pennsylvania

At 14.0%, highway truck share is 11% lower than the state average. The highway traffic mix is typical for Pennsylvania: neither freight- nor commuter-dominated.

63% of counties in Pennsylvania see a higher highway truck share than Blair's 14.0%. By raw truck volume, Blair carries fewer highway trucks than 76% of counties in Pennsylvania.

non-highway traffic icon

Non-highway Traffic in Blair County, Pennsylvania

Trafficvehicles per day4,159
Trucks5.5%
Average travel time32.1 min
Congestion ratio13.2%
Drivers’ average age50.5 yrs
Drivers’ average income$65,471

Local roads carry more than half of all travel in Blair County, Pennsylvania (55% of vehicle-miles). On the average non-highway road, that comes to 4,159 vehicles per day.

Local roads make up 77% of the monitored road miles (434 miles in 7,022 segments) but carry less than their share of travel: 1,347,611 vehicle-miles traveled per day (≈492 million per year). About 1 in 18 vehicles on non-highway roads is a truck (5.5%).

Local roads carry 61% fewer trucks by share than highways

Compared to highways, non-highway routes see 61% fewer trucks by share.

Non-highway congestion (13.2%) runs 16% lower than the state average, pointing to smoother local traffic flow.

64% of counties in Pennsylvania see higher average driver income among trip origins than Blair. The driver population here skews older than 53% of counties in Pennsylvania.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

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

Blair County vs. Pennsylvania Traffic Comparison

Of the four measures, average daily traffic per road differs most: Blair County runs 20% below the Pennsylvania average.

MetricBlair CountyPennsylvania averageDifference
Traffic4,4695,617-20.4%
Truck % (Total Traffic)9.3%10.6%-12.4%
Truck % (Highway)14.0%15.8%-10.9%
Avg. Travel Time32.9 min34.6 min-4.9%

How Blair County compares

Blair County has the busiest roads among its nearby counties

Compared with its 4 closest neighbours, Blair County carries 42.9% more traffic on a typical road; it has the busiest roads of the five. Bigger and busier at once: more road than the areas around it and heavier traffic on it, which makes it the centre of gravity for travel in this part of the map.

Blair 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
Blair County4,4699.3%2,446,93232.9 min13.7%
Huntingdon County, Pennsylvania2,63910.4%808,18930.9 min9.6%
Cambria County, Pennsylvania3,6358.2%2,043,25031.8 min10.4%
Clearfield County, Pennsylvania2,69622.1%2,050,41932.1 min9.9%
Mifflin County, Pennsylvania3,53913.1%1,001,02839.7 min13.2%
Pennsylvania average5,61710.6%N/A34.6 min16.5%

Blair County ranked within Pennsylvania

Highway truck volume places Blair County #49 of 64 in Pennsylvania - the bottom quarter of the state.

Blair County ranked among 67 county-level areas in Pennsylvania (1 = highest); measures without data in every county rank a smaller field, down to 64.
MeasureBlair CountyPennsylvania rank
Traffic volume (AADT)4,469#22 of 67
Highway vehicle-miles per day1,099,321#31 of 64
Truck share on highways14.0%#41 of 64
Highway trucks per day1,090#49 of 64
Average travel time32.9 min#45 of 67
Average driver income$65,974#43 of 67
Average driver age50.5 yrs#32 of 67

Busiest roads in Blair County, Pennsylvania

Traffic concentrates on a few corridors: the top three roads on this list average 21,506 vehicles a day, against 4,469 on the average road in Blair County.

William Penn Highway tops the list with 22,664 vehicles a day, 2,764 of them trucks (12.2%). 17th Street is practically level with it at 22,101. It tops the truck ranking too, with the most trucks on the list.

to I 99/US 220 carries longer journeys than most roads here, with a median trip of 54.6 minutes against 32.9 county-wide.

Freight stands out on to US 22 and to I 99/US 220: trucks are 18.9% and 16.7% of the traffic there, against 9.3% county-wide.

Plank Road is busy with cars rather than freight: only 3.3% of its traffic is trucks, against 9.3% county-wide.

Ranked by daily traffic (AADT)

Only named roads are listed. Some unnamed segments, such as ramps or unlabeled carriageways, may carry as much traffic as the roads shown.

Cars and light vehiclesTrucks
1William Penn HighwayMotorway · 22,664vehicles2,764trucks · 12.2%
Road class
Motorway
Congestion ratio
17.8%
Median trip time
48.0 min
Drivers’ median age
50.3 yrs
Drivers’ average income
$64,286

William Penn Highway carries through traffic: the median trip using it lasts 48.0 minutes, against 32.9 for the county.

217th StreetPrimary road · 22,101vehicles978trucks · 4.4%
Road class
Primary road
Congestion ratio
25.1%
Median trip time
31.2 min
Drivers’ median age
49.5 yrs
Drivers’ average income
$59,393

Delays build on 17th Street: its congestion ratio of 25% over free-flow time is well above the county's 14%.

3Plank RoadPrimary road · 19,752vehicles644trucks · 3.3%
Road class
Primary road
Congestion ratio
23.4%
Median trip time
32.0 min
Drivers’ median age
50.3 yrs
Drivers’ average income
$60,742

Plank Road carries 4.4 times the county average at its busiest, 644 of them trucks (3.3%, below the county-wide 9.3%).

4I 99Motorway · 17,481vehicles2,672trucks · 15.3%
Road class
Motorway
Congestion ratio
20.0%
Median trip time
44.0 min
Drivers’ median age
50.0 yrs
Drivers’ average income
$67,098

Trucks make up 15.3% of I 99's traffic, against 9.3% across the county, so freight weighs heavily here.

5Pleasant Valley BoulevardPrimary road · 16,398vehicles677trucks · 4.1%
Road class
Primary road
Congestion ratio
35.6%
Median trip time
33.0 min
Drivers’ median age
49.6 yrs
Drivers’ average income
$59,509

Travel on Pleasant Valley Boulevard's busiest stretch runs 36% over free-flow time, against 14% across the county, so expect slower peak hours.

Ranked by trucks per day

Only named roads are listed. Some unnamed segments, such as ramps or unlabeled carriageways, may carry as much traffic as the roads shown.

Cars and light vehiclesTrucks
1William Penn HighwayMotorway · #1 by traffic22,664vehicles2,764trucks · 12.2%
2I 99Motorway · #4 by traffic17,481vehicles2,672trucks · 15.3%
3to US 22Motorway · 8,746vehicles1,653trucks · 18.9%
Road class
Motorway
Congestion ratio
20.8%
Median trip time
42.5 min
Drivers’ median age
50.7 yrs
Drivers’ average income
$63,417

to US 22 carries 2.0 times the county average on its busiest stretch, where the median trip lasts 42.5 minutes.

4to I 99/US 220Motorway · 7,690vehicles1,281trucks · 16.7%
Road class
Motorway
Congestion ratio
16.9%
Median trip time
54.6 min
Drivers’ median age
50.3 yrs
Drivers’ average income
$66,563

to I 99/US 220 carries 72% more than the county average on its busiest stretch, where the median trip lasts 54.6 minutes.

517th StreetPrimary road · #2 by traffic22,101vehicles978trucks · 4.4%
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

BlairDepartment 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 Blair County

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

Need segment-level traffic data?

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