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Traffic heat map of Somerset County, Maine: 529 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 95 and Island Avenue

Somerset County, Maine Traffic Counts

Its busiest road, I 95, carries 21,176 vehicles a day, 6.4 times the average road. This page breaks down traffic in Somerset County, Maine across 529 miles of monitored roads split into 4,088 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 Somerset County, Maine

Traffic

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

vehicles per day3,295
Trucks

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

9.7%
Average travel time

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

35.5 min
Congestion ratio

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

10.1%
Drivers’ average age

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

51.0 yrs
Drivers’ average income

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

$59,721

Our data shows 3,295 vehicles per day on the average road in Somerset County, Maine, and 1,529,066 vehicle-miles traveled per day (≈558 million per year) across its 529 miles of monitored roads. Trucks are 9.7% of traffic, close to the 8.7% across Maine.

Quieter roads than 67% of counties in Maine

Somerset's average daily traffic volume is 32% lower than the state average - 3,295 vehicles per day against 4,836 - suggesting less traffic load per road - less drive-by exposure for retail, but easier access for deliveries. Network-wide, Somerset accounts for about 4.7% of Maine's statewide total of vehicle-miles. By volume, Somerset's 3,295 vehicles per day trails 67% of counties in Maine.

The average trip takes 35.5 minutes, on par with the state level. Its average travel time of 35.5 minutes is longer than 60% of counties in Maine.

At 31% lower than the state level, the 10.1% congestion ratio signals smoother traffic flow - travel times are easy to plan around for scheduled deliveries.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Somerset County, Maine

Trafficvehicles per day6,238
Trucks12.7%
Average travel time44.9 min
Congestion ratio17.6%
Drivers’ average age49.9 yrs
Drivers’ average income$62,296

A significant share of driving in Somerset County, Maine, 34% of vehicle-miles, happens on highways. The average highway carries 6,238 vehicles per day, 115% more than the average non-highway road in the same area, which carries 2,896 vehicles per day.

Highways make up 14% of the monitored road miles (75 miles, 489 segments), so they carry more than their share: 517,794 vehicle-miles traveled per day (≈189 million per year).

By highway travel volume, Somerset outranks 57% of counties in Maine.

A typical mix of freight and passenger traffic

At 12.7%, the highway truck share matches the state average for similar road classifications. The highway traffic mix is typical for Maine: neither freight- nor commuter-dominated.

By truck concentration, highways here outrank 64% of counties in Maine. Somerset's highway truck count is higher than 64% of counties in Maine, at roughly 795 trucks per day.

non-highway traffic icon

Non-highway Traffic in Somerset County, Maine

Trafficvehicles per day2,896
Trucks8.1%
Average travel time34.3 min
Congestion ratio9.1%
Drivers’ average age51.7 yrs
Drivers’ average income$58,601

A little more than half of the driving in Somerset County, Maine happens on local roads: 66% of all vehicle-miles. The average non-highway road carries 2,896 vehicles per day.

Spread over 454 miles and 3,599 segments, 86% of the road network, local roads carry a lighter load per mile: 1,011,273 vehicle-miles traveled per day (≈369 million per year). Trucks make up 8.1% of non-highway traffic, about 1 in 12 vehicles.

Drivers from lower-income areas than 80% of counties in Maine

The concentration of trucks on non-highway roads is 36% lower than on highways.

Non-highway congestion (9.1%) runs 35% lower than the state average, pointing to smoother local traffic flow.

Somerset's average driver income is lower than 80% of counties in Maine. The driver population here skews younger than 67% of counties in Maine.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

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

Somerset County vs. Maine Traffic Comparison

The average daily traffic per road sets Somerset County apart: 32% below the Maine average.

MetricSomerset CountyMaine averageDifference
Traffic3,2954,836-31.9%
Truck % (Total Traffic)9.7%8.7%+11.1%
Truck % (Highway)12.7%12.3%+3.2%
Avg. Travel Time35.5 min34.6 min+2.7%

How Somerset County compares

Somerset County against nearby counties

Somerset 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.

Somerset County and the 4 nearest county-level areas by centroid distance, with the Maine average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Somerset County3,2959.7%1,529,06635.5 min10.1%
Franklin County, Maine3,1408.5%710,33034.7 min10.2%
Piscataquis County, Maine2,6098.9%370,85737.8 min8.9%
Oxford County, Maine3,5247.9%1,330,89435.5 min11.8%
Kennebec County, Maine5,3039.1%3,288,04135.8 min15.6%
Maine average4,8368.7%N/A34.6 min14.6%

Somerset County ranked within Maine

Average driver income places Somerset County #13 of 16 in Maine - the bottom quarter of the state.

Somerset County ranked among 16 county-level areas in Maine (1 = highest); measures without data in every county rank a smaller field, down to 15.
MeasureSomerset CountyMaine rank
Traffic volume (AADT)3,295#11 of 16
Highway vehicle-miles per day517,794#7 of 15
Truck share on highways12.7%#6 of 15
Highway trucks per day795#6 of 15
Average travel time35.5 min#7 of 16
Average driver income$59,721#13 of 16
Average driver age51.0 yrs#11 of 16

Busiest roads in Somerset County, Maine

Traffic concentrates on a few corridors: the three busiest roads average 17,161 vehicles a day, against 3,295 on the average road in Somerset County.

I 95 is the busiest road, at 21,176 vehicles a day, 3,417 of them trucks (16.1%). It tops the truck ranking too, with the most trucks.

US 2 carries longer journeys than most roads here, with a median trip of 64.6 minutes against 35.5 county-wide.

Freight stands out on I 95 and US 2: trucks are 16.1% and 15.1% of the traffic there, against 9.7% county-wide.

Madison Avenue is busy with cars rather than freight: only 4.1% of its traffic is trucks, against 9.7% county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 95Motorway · 21,176vehicles3,417trucks · 16.1%
Road class
Motorway
Congestion ratio
21.8%
Median trip time
56.2 min
Drivers’ median age
48.4 yrs
Drivers’ average income
$66,950

Drivers on I 95 are on long journeys, a median 56.2 minutes against 35.5 county-wide: a through route more than a local street.

2Island AvenueTrunk road · 16,706vehicles735trucks · 4.4%
Road class
Trunk road
Congestion ratio
51.9%
Median trip time
35.6 min
Drivers’ median age
51.7 yrs
Drivers’ average income
$57,405

Travel on Island Avenue's busiest stretch runs 52% over free-flow time, against 10% across the county, so expect slower peak hours.

3Madison AvenuePrimary road · 13,602vehicles557trucks · 4.1%
Road class
Primary road
Congestion ratio
21.0%
Median trip time
33.5 min
Drivers’ median age
52.0 yrs
Drivers’ average income
$58,800

On its busiest stretch, Madison Avenue carries 4.1 times the county average; trucks are 4.1% of it, below the county-wide 9.7%.

4Pung Hill RoadSecondary road · 12,039vehicles805trucks · 6.7%
Road class
Secondary road
Congestion ratio
29.8%
Median trip time
36.3 min
Drivers’ median age
51.1 yrs
Drivers’ average income
$66,660

Pung Hill Road peaks at 12,039 vehicles a day, 3.7 times the county average; trucks are 6.7% of it, below the county-wide 9.7%.

5Ox Bow RoadTrunk road · 11,439vehicles958trucks · 8.4%
Road class
Trunk road
Congestion ratio
31.7%
Median trip time
43.0 min
Drivers’ median age
51.3 yrs
Drivers’ average income
$56,074

Ox Bow Road is one of the more congested roads here: trips take 32% longer than at free-flow speed, against 10% county-wide.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 95Motorway · #1 by traffic21,176vehicles3,417trucks · 16.1%
2Ox Bow RoadTrunk road · #5 by traffic11,439vehicles958trucks · 8.4%
3Pung Hill RoadSecondary road · #4 by traffic12,039vehicles805trucks · 6.7%
4US 2Trunk road · 5,258vehicles795trucks · 15.1%
Road class
Trunk road
Congestion ratio
13.5%
Median trip time
64.6 min
Drivers’ median age
49.3 yrs
Drivers’ average income
$63,951

At 60% more than the county average, US 2 draws drivers from neighborhoods averaging $63,951 in household income.

5College AvenuePrimary road · 9,204vehicles741trucks · 8.1%
Road class
Primary road
Congestion ratio
13.7%
Median trip time
35.0 min
Drivers’ median age
50.2 yrs
Drivers’ average income
$60,953

College Avenue carries 2.8 times the county average at its busiest, 741 of them trucks (8.1%, below the county-wide 9.7%).

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

SomersetDepartment 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 Somerset County

The same traffic breakdown for the areas closest to Somerset County, Maine.

Need segment-level traffic data?

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