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Traffic heat map of Barnstable County, Massachusetts: 812 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Pilgrims Highway

Barnstable County, Massachusetts Traffic Counts

Our Barnstable County, Massachusetts traffic data covers 26,244 road segments over 812 road miles, with an average segment of just 163 ft. Its highways carry the lowest truck share of any county in Massachusetts, 5.5%. 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 Barnstable County, Massachusetts

Traffic

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

vehicles per day6,136
Trucks

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

5.2%
Average travel time

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

32.1 min
Congestion ratio

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

18.6%
Drivers’ average age

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

56.9 yrs
Drivers’ average income

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

$97,843

Our data shows 6,136 vehicles per day on the average road in Barnstable County, Massachusetts, and 5,934,940 vehicle-miles traveled per day (≈2.2 billion per year) across its 812 miles of monitored roads. Trucks are a smaller part of the mix than across Massachusetts: 5.2% against 6.9%.

Shorter trips than 85% of counties in Massachusetts

Barnstable's average daily traffic volume is 25% lower than the state average - 6,136 vehicles per day against 8,166 - suggesting less traffic load per road - a factor worth weighing in site selection and logistics planning. Across the whole network, that travel is about 4.4% of Massachusetts's statewide total. By volume, Barnstable's 6,136 vehicles per day trails 62% of counties in Massachusetts.

At 32.1 minutes, the average travel time is 7% lower than the state level. On travel time, Barnstable runs shorter than 85% of counties in Massachusetts.

The congestion ratio of 18.6% is 22% lower, pointing to smoother traffic flow than the state level - crucial for traffic control improvement and logistics planning.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Barnstable County, Massachusetts

Trafficvehicles per day18,933
Trucks5.5%
Average travel time40.7 min
Congestion ratio43.5%
Drivers’ average age57.1 yrs
Drivers’ average income$98,896

Highways carry a significant share of travel in Barnstable County, Massachusetts: 43% of all vehicle-miles. The average highway carries 18,933 vehicles per day, 248% more than the average non-highway road in the same area, which carries 5,435 vehicles per day.

With 17% of the road miles (138 miles in 1,362 segments), highways punch above their length, carrying 2,548,149 vehicle-miles traveled per day (≈930 million per year).

The lowest highway truck share of any county in Massachusetts

Highway truck concentration here runs 34% lower than the state average, at 5.5%. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.

At 5.5%, Barnstable's highway truck concentration is the lowest in Massachusetts. By raw volume, Barnstable carries the lowest number of highway trucks in Massachusetts - roughly 1,021 trucks per day.

non-highway traffic icon

Non-highway Traffic in Barnstable County, Massachusetts

Trafficvehicles per day5,435
Trucks5.0%
Average travel time31.6 min
Congestion ratio17.3%
Drivers’ average age56.8 yrs
Drivers’ average income$97,372

Local roads carry more than half of all travel in Barnstable County, Massachusetts (57% of vehicle-miles). The average non-highway road carries 5,435 vehicles per day.

Local roads make up 83% of the monitored road miles (675 miles in 24,882 segments) but carry less than their share of travel: 3,386,791 vehicle-miles traveled per day (≈1.2 billion per year). Trucks make up 5.0% of non-highway traffic, about 1 in 20 vehicles.

The oldest drivers of any county in Massachusetts

Non-highway roads carry a truck concentration that's 10% lower than the highway network.

At 25% lower than the state level, the non-highway congestion ratio of 17.3% signals easier movement on local roads.

69% of counties in Massachusetts see higher average driver income among trip origins than Barnstable. At 57 years, Barnstable's median driver age is the highest in Massachusetts.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 10:00 AM–12:00 PM and a long afternoon plateau from 12:00 PM to 6:00 PM, with volumes reaching approximately 77% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 16% below weekday levels, the usual weekend dip.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +22% versus the annual average.
Lowest month:
January is the quietest month, with volumes -26% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Barnstable County, Massachusetts, the peak hour concentrates about 7% of the day's traffic, and there is a strong seasonal swing of +22% in high season.

Barnstable County vs. Massachusetts Traffic Comparison

The highway truck share sets Barnstable County apart: 34% below the Massachusetts average. Its truck share is also 25% below.

MetricBarnstable CountyMassachusetts averageDifference
Traffic6,1368,166-24.9%
Truck % (Total Traffic)5.2%6.9%-25.1%
Truck % (Highway)5.5%8.4%-34.3%
Avg. Travel Time32.1 min34.4 min-6.6%

How Barnstable County compares

Barnstable County against nearby counties

Barnstable County tracks the 4 areas around it closely - no measure in this table sets it far apart from the areas immediately next to it, though it has the third busiest roads of the five.

Barnstable County and the 4 nearest county-level areas by centroid distance, with the Massachusetts average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Barnstable County6,1365.2%5,934,94032.1 min18.6%
Nantucket County, Massachusetts5,3356.0%186,08329.3 min18.2%
Dukes County, Massachusetts4,8994.6%343,75428.7 min15.7%
Plymouth County, Massachusetts7,8046.0%11,686,20332.7 min21.8%
Bristol County, Massachusetts7,4946.5%11,722,47334.5 min21.0%
Massachusetts average8,1666.9%N/A34.4 min24.0%

Barnstable County ranked within Massachusetts

Barnstable County posts the highest average driver age of any county-level area in Massachusetts.

Barnstable County ranked among 14 county-level areas in Massachusetts (1 = highest); measures without data in every county rank a smaller field, down to 12.
MeasureBarnstable CountyMassachusetts rank
Traffic volume (AADT)6,136#9 of 14
Highway vehicle-miles per day2,548,149#9 of 12
Truck share on highways5.5%#12 of 12
Highway trucks per day1,043#12 of 12
Average travel time32.1 min#12 of 14
Average driver income$97,843#10 of 14
Average driver age56.9 yrs#1 of 14

The two ends of this table sit far apart: #1 of 14 on average driver age, against #12 of 12 on truck share on highways.

Busiest roads in Barnstable County, Massachusetts

The three busiest roads in Barnstable County average 42,373 vehicles a day, 6.9 times the county average of 6,136 across all its monitored roads.

Pilgrims Highway is the busiest road, at 45,233 vehicles a day, 2,877 of them trucks (6.4%). It also carries the most trucks.

MA 25 carries longer journeys than most roads here, with a median trip of 50.1 minutes against 32.1 county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Pilgrims HighwayMotorway · 45,233vehicles2,877trucks · 6.4%
Road class
Motorway
Congestion ratio
48.0%
Median trip time
47.1 min
Drivers’ median age
54.3 yrs
Drivers’ average income
$110,567

Travel on Pilgrims Highway's busiest stretch runs 48% over free-flow time, against 19% across the county, so expect slower peak hours.

2Mid Cape HighwayMotorway · 41,139vehicles2,506trucks · 6.1%
Road class
Motorway
Congestion ratio
42.2%
Median trip time
40.3 min
Drivers’ median age
57.1 yrs
Drivers’ average income
$97,850

Mid Cape Highway carries 6.7 times the county average at its busiest, 2,506 of them trucks (6.1%, above the county-wide 5.2%).

3General MacArthur BoulevardTrunk road · 40,747vehicles1,906trucks · 4.7%
Road class
Trunk road
Congestion ratio
46.4%
Median trip time
44.7 min
Drivers’ median age
54.7 yrs
Drivers’ average income
$101,779

General MacArthur Boulevard carries 6.6 times the county average on its busiest stretch, where the median trip lasts 44.7 minutes.

4MA 25Motorway · 35,346vehicles2,304trucks · 6.5%
Road class
Motorway
Congestion ratio
30.4%
Median trip time
50.1 min
Drivers’ median age
55.1 yrs
Drivers’ average income
$98,330

At 5.8 times the county average, MA 25 draws drivers from neighborhoods averaging $98,330 in household income.

5Sandwich Road ConnectorTrunk road · 31,682vehicles1,108trucks · 3.5%
Road class
Trunk road
Congestion ratio
83.3%
Median trip time
41.1 min
Drivers’ median age
55.4 yrs
Drivers’ average income
$104,084

Sandwich Road Connector is one of the more congested roads here: trips take 83% longer than at free-flow speed, against 19% county-wide.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Pilgrims HighwayMotorway · #1 by traffic45,233vehicles2,877trucks · 6.4%
2Mid Cape HighwayMotorway · #2 by traffic41,139vehicles2,506trucks · 6.1%
3MA 25Motorway · #4 by traffic35,346vehicles2,304trucks · 6.5%
4General MacArthur BoulevardTrunk road · #3 by traffic40,747vehicles1,906trucks · 4.7%
5Pilgrim HighwayMotorway · 28,797vehicles1,860trucks · 6.5%
Road class
Motorway
Median trip time
46.5 min
Drivers’ median age
54.5 yrs
Drivers’ average income
$103,374

Pilgrim Highway carries through traffic: the median trip using it lasts 46.5 minutes, against 32.1 for the county.

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

BarnstableDepartment 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 Barnstable County

The same traffic breakdown for the areas closest to Barnstable County, Massachusetts.

Need segment-level traffic data?

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