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Traffic heat map of Garrett County, Maryland: 513 miles of roads shaded from blue (light) to red (heavy traffic), busiest on National Freeway and 3rd Street

Garrett County, Maryland Traffic Counts

Our Garrett County, Maryland traffic data covers 5,116 road segments over 513 road miles, with an average segment of just 529 ft. Its highways carry one of the top 5 truck shares of any county in Maryland. 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 Garrett County, Maryland

Traffic

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

vehicles per day2,427
Trucks

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

12.8%
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.

7.7%
Drivers’ average age

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

51.9 yrs
Drivers’ average income

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

$72,708

Our data shows 2,427 vehicles per day on the average road in Garrett County, Maryland, and 1,290,850 vehicle-miles traveled per day (≈471 million per year) across its 513 miles of monitored roads. About 1 in 8 vehicles is a truck, well above the 7.5% across Maryland - a freight-heavy mix.

Quieter roads than 96% of counties in Maryland

Garrett sees 68% lower average daily traffic volume than the state average (2,427 vehicles per day against 7,693), suggesting less demand on each road - very light roads: easy truck access, but little passing trade for roadside retail. Across the whole network, that travel is about 0.9% of Maryland's statewide total. By volume, Garrett's 2,427 vehicles per day trails 96% of counties in Maryland.

Journey times here (33.4 minutes on average) closely track the state level. 52% of counties in Maryland have a shorter average travel time than Garrett's 33.4 minutes.

Congestion runs 63% lower than the state level, at a ratio of 7.7%, which means smoother traffic flow - delays are rare enough to plan travel times almost to the minute.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Garrett County, Maryland

Trafficvehicles per day7,012
Trucks16.4%
Average travel time41.7 min
Congestion ratio13.8%
Drivers’ average age51.4 yrs
Drivers’ average income$73,838

A little more than half of the driving in Garrett County, Maryland happens on highways: 63% of all vehicle-miles. The average highway carries 7,012 vehicles per day, 358% more than the average non-highway road in the same area, which carries 1,530 vehicles per day.

Highways make up 21% of the monitored road miles (110 miles, 837 segments), so they carry more than their share: 813,227 vehicle-miles traveled per day (≈297 million per year).

Higher highway truck share than 87% of counties in Maryland

At 16.4%, highway truck share is 68% higher than the state average. Highways here lean toward freight, so highway access is a real asset for logistics operators.

By truck concentration, highways here outrank 87% of counties in Maryland. 70% of counties in Maryland see more highway trucks per day than Garrett's roughly 1,148.

non-highway traffic icon

Non-highway Traffic in Garrett County, Maryland

Trafficvehicles per day1,530
Trucks6.8%
Average travel time31.8 min
Congestion ratio6.5%
Drivers’ average age53.1 yrs
Drivers’ average income$71,540

Local roads carry a significant share of travel in Garrett County, Maryland: 37% of all vehicle-miles. The average non-highway road carries 1,530 vehicles per day.

Spread over 403 miles and 4,279 segments, 79% of the road network, local roads carry a lighter load per mile: 477,623 vehicle-miles traveled per day (≈174 million per year). Trucks make up 6.8% of non-highway traffic, about 1 in 15 vehicles.

Drivers from lower-income areas than 87% of counties in Maryland

Non-highway roads carry a truck concentration that's 58% lower than the highway network.

The non-highway congestion ratio of 6.5% is 66% lower than the state level, suggesting more efficient local mobility than the state average.

87% of counties in Maryland see higher average driver income among trip origins than Garrett. 87% of counties in Maryland have a younger driver population than Garrett.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 10:00 AM–12:00 PM and PM peak 4:00 PM–6:00 PM, with volumes reaching approximately 75% higher than the daily average.
Weekend traffic:
Weekend traffic is about as busy as on weekdays (-3%): leisure and through trips largely replace the commute.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +24% versus the annual average.
Lowest month:
March is the quietest month, with volumes -18% versus the annual average.

Data Finding: Hourly & Seasonal Patterns

In Garrett County, Maryland, the peak hour concentrates about 7% of the day's traffic, and there is a strong seasonal swing of +24% in high season.

Garrett County vs. Maryland Traffic Comparison

Of the four measures, truck share differs most: Garrett County runs 71% above the Maryland average. Its average daily traffic per road, by contrast, is 68% below.

MetricGarrett CountyMaryland averageDifference
Traffic2,4277,693-68.5%
Truck % (Total Traffic)12.8%7.5%+71.4%
Truck % (Highway)16.4%9.8%+67.7%
Avg. Travel Time33.4 min34.0 min-1.8%

How Garrett County compares

Garrett County has the quietest roads among its nearby counties

Compared with its 4 closest neighbours, Garrett County is 43.6% less congested and carries 46.1% less traffic on a typical road; it has the quietest roads of the five. Quiet roads and long journeys - a rural pattern, where the distance between destinations rather than the traffic on the way is what takes the time.

Garrett County and the 4 nearest county-level areas by centroid distance, with the Maryland average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Garrett County2,42712.8%1,290,85033.4 min7.7%
Mineral County, West Virginia5,5316.9%754,92529.8 min16.8%
Preston County, West Virginia4,82511.0%1,423,33433.0 min11.2%
Tucker County, West Virginia3,6699.7%325,58332.1 min11.5%
Grant County, West Virginia3,9899.6%419,32826.2 min15.0%
Maryland average7,6937.5%N/A34.0 min20.5%

Garrett County ranked within Maryland

Garrett County sits in the bottom quarter of the Maryland field on average daily traffic volume, at #23 of 24.

Garrett County ranked among 24 county-level areas in Maryland (1 = highest).
MeasureGarrett CountyMaryland rank
Traffic volume (AADT)2,427#23 of 24
Highway vehicle-miles per day813,227#19 of 24
Truck share on highways16.4%#4 of 24
Highway trucks per day1,148#17 of 24
Average travel time33.4 min#12 of 24
Average driver income$72,708#21 of 24
Average driver age51.9 yrs#4 of 24

Garrett County ranks #4 of 24 on truck share on highways but #23 of 24 on average daily traffic volume - the two describe the same roads and are worth reading together rather than either on its own.

Busiest roads in Garrett County, Maryland

Traffic concentrates on a few corridors: the three busiest roads average 13,786 vehicles a day, against 2,427 on the average road in Garrett County.

National Freeway leads with 17,376 vehicles a day, 3,496 of them trucks (20.1%). It also carries the most trucks.

Trips using I 68 are long: a median of 69.4 minutes against 33.4 county-wide, the mark of a through route.

Trucks make up 24.8% of traffic on I 68 and 20.1% on National Freeway, against 12.8% across all roads in the county.

3rd Street is busy with cars rather than freight: only 5.8% of its traffic is trucks, against 12.8% county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1National FreewayMotorway · 17,376vehicles3,496trucks · 20.1%
Road class
Motorway
Congestion ratio
13.1%
Median trip time
56.0 min
Drivers’ median age
49.9 yrs
Drivers’ average income
$71,088

National Freeway carries through traffic: the median trip using it lasts 56.0 minutes, against 33.4 for the county.

23rd StreetTrunk road · 12,288vehicles714trucks · 5.8%
Road class
Trunk road
Congestion ratio
38.5%
Median trip time
29.6 min
Drivers’ median age
52.5 yrs
Drivers’ average income
$71,357

3rd Street is one of the more congested roads here: trips take 38% longer than at free-flow speed, against 8% county-wide.

3Oak StreetTrunk road · 11,692vehicles839trucks · 7.2%
Road class
Trunk road
Median trip time
28.8 min
Drivers’ median age
53.0 yrs
Drivers’ average income
$66,811

Oak Street carries 4.8 times the county average at its busiest, 839 of them trucks (7.2%, below the county-wide 12.8%).

4Oakland Westernport RoadPrimary road · 10,292vehicles565trucks · 5.5%
Road class
Primary road
Median trip time
27.4 min
Drivers’ median age
53.5 yrs
Drivers’ average income
$62,024

Oakland Westernport Road carries 4.2 times the county average on its busiest stretch, where the median trip lasts 27.4 minutes.

5I 68Motorway · 9,124vehicles2,267trucks · 24.8%
Road class
Motorway
Median trip time
69.4 min
Drivers’ median age
53.1 yrs
Drivers’ average income
$82,798

At 3.8 times the county average, I 68 draws drivers from neighborhoods averaging $82,798 in household income.

Ranked by trucks per day

Cars and light vehiclesTrucks
1National FreewayMotorway · #1 by traffic17,376vehicles3,496trucks · 20.1%
2I 68Motorway · #5 by traffic9,124vehicles2,267trucks · 24.8%
3Main StreetTrunk road · 6,589vehicles858trucks · 13.0%
Road class
Trunk road
Congestion ratio
17.5%
Median trip time
31.5 min
Drivers’ median age
52.4 yrs
Drivers’ average income
$69,654

Delays build on Main Street: its congestion ratio of 18% over free-flow time is well above the county's 8%.

4Oak StreetTrunk road · #3 by traffic11,692vehicles839trucks · 7.2%
53rd StreetTrunk road · #2 by traffic12,288vehicles714trucks · 5.8%
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

GarrettDepartment 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 Garrett County

The same traffic breakdown for the areas closest to Garrett County, Maryland.

Need segment-level traffic data?

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